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301
17,205
Projections onto the range of the exponential Radon transform and reconstruction algorithms
Inverse Problems
In recent articles Metz and Pan have introduced a large class of methods for inverting the exponential Radon transform that are parametrized by a function ω of two variables. We show that when ω satisfies a certain constraint, the corresponding inversion method uses projection to the range of the transform. The addition of another constraint on ω makes this projection orthogonal with respect to a weighted inner product. Their quasi-optimal algorithm uses the projection that is orthogonal with respect to the ordinary inner product.
["Clarkson E."]
["7005797126"]
1,999
9
[]
10.1088/0266-5611/15/2/014
Article
English
[{"id": "60010065", "name": "Optical Sciences Center, University of Arizona, Tucson, AZ 85721, United States", "fullName": "Optical Sciences Center, University of Arizona", "reference": "a", "fullAddress": "Tucson, AZ 85721, United States", "departmentId": "103550683"}]
302
17,251
Quantum stochastic calculus and quantum nonlinear filtering
Journal of Multivariate Analysis
A *-algebraic indefinite structure of quantum stochastic (QS) calculus is introduced and a continuity property of generalized nonadapted QS integrals is proved under the natural integrability conditions in an infinitely dimensional nuclear space. The class of nondemolition output QS processes in quantum open systems is characterized in terms of the QS calculus, and the problem of QS nonlinear filtering with respect to nondemolition, continuous measurements is investigated. The stochastic calculus of a posteriori conditional expectations in quantum observed systems is developed and a general quantum filtering stochastic equation for 2 QS process is derived. An application to the description of the spontaneous collapse of the quantum spin under continuous observation is given. © 1992.
["Belavkin V.P."]
["7004580130"]
1,992
225
["conditional expectation", "output process", "quantum filtering", "quantum system", "stochastic calculus"]
10.1016/0047-259X(92)90042-E
Article
English
[{"id": "60027509", "name": "Università di Roma II, Rome, Italy", "fullName": "Università di Roma II", "reference": "a", "fullAddress": "Rome, Italy", "departmentId": null}]
303
17,284
The topological susceptibility of the pure SU(3) Yang-Mills vacuum on the lattice
Physics Letters B
Using a "field theoretic" approach, we compute the topological susceptibility χ of the pure gauge SU(3) theory on the lattice. We also apply an algorithm of gradual cooling, and use these two approaches as a cross-check on each other. The final value we find for χ confirms results found earlier using an abrupt-cooling algorithm. © 1990.
["Campostrini M.", "Di Giacomo A.", "Gündüc Y.", "Lombardo M.P.", "Panagopoulos H.", "Tripiccione R."]
["56962752800", "7005321885", "6603761972", "57203071864", "7003729654", "7004486899"]
1,990
24
[]
10.1016/0370-2693(90)90566-O
Article
English
[{"id": "60113665", "name": "INFN, Sezione di Pisa, Dipartimento di Fisica dell'Università, I-56100 Pisa, Italy", "fullName": "INFN, Sezione di Pisa, Dipartimento di Fisica dell'Università", "reference": "a", "fullAddress": "I-56100 Pisa, Italy", "departmentId": "104459072"}]
304
17,298
Learning and Incentive-Compatible Mechanisms for Public Goods Provision: An Experimental Study
Journal of Political Economy
This is the first systematic experimental study of the comparative performance of two incentive-compatible mechanisms for public goods provision: the basic quadratic mechanism by Groves and Ledyard and the paired-difference mechanism by Walker. Our experiments demonstrate that the performance of the basic quadratic mechanism under a high punishment parameter is far better than that of the same mechanism under a low punishment parameter, which, in turn, is better than that of the paired-difference mechanism. We estimate three individual behavioral models: an exponentialized relative payoff sum model outperforms the generalized fictitious play model. We also provide a sufficient condition for convergence under the basic quadratic mechanism.
["Chen Y.", "Tang F.-F."]
["8889740400", "7201979717"]
1,998
53
[]
10.1086/250024
Article
English
[{"id": "60025778", "name": "University of Michigan, United States", "fullName": "University of Michigan", "reference": "a", "fullAddress": "United States", "departmentId": null}, {"id": "60017161", "name": "University of Bonn, National University of Singapore, Singapore", "fullName": "University of Bonn, National University of Singapore", "reference": "b", "fullAddress": "Singapore", "departmentId": null}]
305
17,341
An algorithm for solving linearly constrained optimization problems
Mathematical Programming
An algorithm for minimization of functions of many variables, subject possibly to linear constraints on the variables, is described. In it a subproblem is solved in which a quadratic approximation is made to the object function and minimized over a region in which the approximation is valid. A strategy for deciding when this region should be expanded or contracted is given. The quadratic approximation involves estimating the hessian of the object function by a matrix which is updated at each iteration by a formula recently reported by Powell [6]. This formula enables convergence of the algorithm from any feasible point to be proved. Use of such an approximation, as against using exact second derivatives, also enables a reduction of about 60% to be made in the number of operations to solve the subproblem. Numerical evidence is reported showing that the algorithm is efficient in the number of function evaluations required to solve well known test problems. © 1972 North-Holland Publishing Company.
["Fletcher R."]
["7201875201"]
1,972
35
[]
10.1007/BF01584540
Article
English
[{"id": "60004643", "name": "A.E.R.E., Harwell, Didcot, Berks, United Kingdom", "fullName": "A.E.R.E.", "reference": "a", "fullAddress": "Harwell, Didcot, Berks, United Kingdom", "departmentId": "106817171"}]
306
17,482
A magnetomechanical model of the magnetic brush
Journal of Applied Physics
A mathematical model based on first principles has been formulated to predict the behavior of the magnetic brush in the development zone of an electrophotographic process. As a first approximation, the brush is modeled as a collection of straight chains whose length distribution is derived from a magnetic energy minimization principle. Results with the model are compared with experimental measurements of the tangential and normal forces exerted by the brush on the photoreceptor. The agreement is sufficiently good to confirm the essential aspects of the theory.
["Paranjpe R.S.", "Elrod H.G."]
["57193622019", "58869663600"]
1,988
0
[]
10.1063/1.341069
Article
English
[{"id": "60030162", "name": "Department of Mechanical Engineering, Columbia University, New York, NY 10027, United States", "fullName": "Department of Mechanical Engineering, Columbia University", "reference": "a", "fullAddress": "New York, NY 10027, United States", "departmentId": null}]
307
17,526
Institutional linkages and policy networks in the federal system of West Germany
Publius
West German federalism can be understood as a system of interlocking, but distinct and autonomous, "policy networks." Sectoral policy networks are integrated into overarching networks. The traditional pluri-centrism of state and societal institutions is contrasted with an integrated (but not centralized) economic policy network oriented toward national homogeneity. With the decline of Keynesian macroeconomic policy, however, regional policy networks are being upgraded. At the same time, the political party system and the politicization of administrative agencies have led to the development of an overarching network in which bargaining and accommodation have precedence over hierarchical centralization. Copyright © 1989, CSF Associates.
["Lehmbruch G."]
["6507869311"]
1,989
20
[]
10.2307/3330426
Article
English
[{"id": "60025525", "name": "University of Konstanz, United States", "fullName": "University of Konstanz", "reference": "a", "fullAddress": "United States", "departmentId": null}]
308
17,629
A better insight into the performance of silicon BJT's featuring highly nonuniform collector doping profiles
IEEE Transactions on Electron Devices
This paper investigates the effects of highly nonuniforrn collector doping profiles on the speed and breakdown performance of silicon bipolar transistors. Monte Carlo and drift diffusion simulation results point out that a thin highly doped layer adjacent to the base collector junction can improve the device cut off frequency without deteriorating significantly the maximum oscillation frequency and the breakdown voltage, provided the voltage drop across this layer is lower than an effective threshold of approximately 1.2 V. Guidelines are given for choosing the doping, position, and thickness of this layer. © 2000 IEEE.
["Palestri P.", "Fiegna C.", "Selmi L.", "Peter M.S.", "Hurkx G.A.M.", "Slotboom J.W.", "Sangiorgi E."]
["6701426449", "57188980599", "7006632332", "56277199500", "57194590745", "7007022531", "7006568442"]
2,000
11
["Bipolar transistors", "Doping", "Impact ionization", "Silicon", "Simulation"]
10.1109/16.841239
Article
English
[{"id": "60025965", "name": "DIEGM, 33100 Udine, Italy", "fullName": "DIEGM", "reference": "a", "fullAddress": "33100 Udine, Italy", "departmentId": null}, {"id": "60024690", "name": "DI, University of Ferrara, 44100 Ferrara, Italy", "fullName": "DI, University of Ferrara", "reference": "b", "fullAddress": "44100 Ferrara, Italy", "departmentId": null}, {"id": "60016561", "name": "Philips Research Laboratories, Eindhoven, Netherlands", "fullName": "Philips Research Laboratories", "reference": "c", "fullAddress": "Eindhoven, Netherlands", "departmentId": null}, {"id": "60098096", "name": "Texas Instruments Deutschland GmbH, 85356 Freising, Germany", "fullName": "Texas Instruments Deutschland GmbH", "reference": "d", "fullAddress": "85356 Freising, Germany", "departmentId": null}, {"id": "60016561", "name": "Philips Research Laboratories, Eindhoven, Netherlands", "fullName": "Philips Research Laboratories", "reference": "e", "fullAddress": "Eindhoven, Netherlands", "departmentId": null}]
309
17,646
Explanation-Based Learning: An Alternative View
Machine Learning
In the last issue of this journal Mitchell, Keller, and Kedar-Cabelli presented a unifying framework for the explanation-based approach to machine learning. While it works well for a number of systems, the framework does not adequately capture certain aspects of the systems under development by the explanation-based learning group at Illinois. The primary inadequacies arise in the treatment of concept operationality, organization of knowledge into schemata, and learning from observation. This paper outlines six specific problems with the previously proposed framework and presents an alternative generalization method to perform explanation-based learning of new concepts. © 1986, Kluwer Academic Publishers. All rights reserved.
["Dejong G.", "Mooney R."]
["7005542077", "7102791999"]
1,986
383
["concept acquisition", "explanation-based learning", "machine learning"]
10.1023/A:1022898111663
Article
English
[{"id": "60000745", "name": "Coordinated Science Laboratory, University of Illinois, Urbana, IL, 61801., United States", "fullName": "Coordinated Science Laboratory, University of Illinois", "reference": "a", "fullAddress": "Urbana, IL, 61801., United States", "departmentId": null}]
310
17,654
A new shift of the QL algorithm for irreducible symmetric tridiagonal matrices
Linear Algebra and Its Applications
A new shift in the QL algorithm for symmetric tridiagonal matrices is described. The shift is a combination of the Rayleigh quotient shift and Wilkinson's shift. It is shown that QL is globally convergent with this shift and that the asymptotic rate is always cubic. © 1985.
["Erxiong J.", "Zhenyue Z."]
["24362819200", "8322966000"]
1,985
11
[]
10.1016/0024-3795(85)90101-6
Article
English
[{"id": "60009860", "name": "Mathematics Department Fudan University Shanghai, China", "fullName": "Mathematics Department Fudan University Shanghai", "reference": "a", "fullAddress": "China", "departmentId": null}]
311
17,758
Smooth interpolation in triangles
Journal of Approximation Theory
The purpose of this paper is to describe new schemes of interpolation to the boundary values of a function defined on a triangle. These schemes are affine-invariant and combine several Hermite interpolants. They are not, however, finite dimensional schemes. The simplest scheme is exact for quadratic functions, uses rational linear weighting ("blending") functions analogous to the methods of Mangeron and Coons for rectangles, and satisfies a maximum principle. For any positive integer p, there is an analogous scheme which interpolates on the boundary to the function and all its partial derivatives of order p - 1. The interpolant satisfies a partial differential equation of order 6p and approximates any sufficiently smooth function to order O(h<sup>3p</sup>). © 1973.
["Barnhill R.E.", "Birkhoff G.", "Gordon W.J."]
["24572577200", "6602074078", "7102051340"]
1,973
135
[]
10.1016/0021-9045(73)90020-8
Article
English
[{"id": "60025488", "name": "Mathematics Department, University of Utah, Salt Lake City, UT 84112, United States", "fullName": "Mathematics Department, University of Utah", "reference": "a", "fullAddress": "Salt Lake City, UT 84112, United States", "departmentId": "105340258"}, {"id": "60009982", "name": "Mathematics Department, Harvard University, Cambridge, MA 02138, United States", "fullName": "Mathematics Department, Harvard University", "reference": "b", "fullAddress": "Cambridge, MA 02138, United States", "departmentId": "103544892"}, {"id": "60009813", "name": "Mathematics Department, GM Research Laboratories, Warren, MI 48090, United States", "fullName": "Mathematics Department, GM Research Laboratories", "reference": "c", "fullAddress": "Warren, MI 48090, United States", "departmentId": "100288280"}]
312
17,795
An example of a generalized Brownian motion
Communications in Mathematical Physics
We present an example of a generalized Brownian motion. It is given by creation and annihilation operators on a "twisted" Fock space of L <sup>2</sup> (ℝ). These operators fulfill (for a fixed -1≦μ≦1) the relations c(f)c <sup>*</sup> (g)-μc <sup>*</sup> (g)c(f)=〈f,g〉1 (f, g ∈L <sup>2</sup> (ℝ)). We show that the distribution of these operators with respect to the vacuum expectation is a generalized Gaussian distribution, in the sense that all moments can be calculated from the second moments with the help of a combinatorial formula. We also indicate that our Brownian motion is one component of an n-dimensional Brownian motion which is invariant under the quantum group S <sub>ν</sub> U(n) of Woronowicz (with μ =v <sup>2</sup> ). © 1991 Springer-Verlag.
["Bożejko M.", "Speicher R."]
["6603016853", "6603618350"]
1,991
214
[]
10.1007/BF02100275
Article
English
[{"id": "60016147", "name": "Instytut Matematyczny, Uniwersytet Wrocławski, Wrocław, PL-50-384, Plac Grunwaldzki 2/4, Poland", "fullName": "Instytut Matematyczny, Uniwersytet Wrocławski", "reference": "a", "fullAddress": "Wrocław, PL-50-384, Plac Grunwaldzki 2/4, Poland", "departmentId": "103834032"}, {"id": "60016908", "name": "Institut für Angewandte Mathematik, Universität Heidelberg, Heidelberg, W-6900, Im Neuenheimer Feld 294, Germany", "fullName": "Institut für Angewandte Mathematik, Universität Heidelberg", "reference": "b", "fullAddress": "Heidelberg, W-6900, Im Neuenheimer Feld 294, Germany", "departmentId": null}]
313
17,838
Localization of random walks in one-dimensional random environments
Communications in Mathematical Physics
We consider a random walk on the one-dimensional semi-lattice ℤ={0, 1, 2,...}. We prove that the moving particle walks mainly in a finite neighbourhood of a point depending only on time and a realization of the random environment. The size of this neighbourhood is estimated. The limit parameters of the walks are also determined. © 1984 Springer-Verlag.
["Golosov A.O."]
["16472007500"]
1,984
92
[]
10.1007/BF01215280
Article
English
[{"id": "60007457", "name": "Chair of Probability Theory, Department of Mechanics and Mathematics, Moscow State University, Moscow, SU-117234, Russia", "fullName": "Chair of Probability Theory, Department of Mechanics and Mathematics, Moscow State University", "reference": "a", "fullAddress": "Moscow, SU-117234, Russia", "departmentId": "103410013"}]
314
17,843
A modified chebyshev pseudospectral method with an O(n<sup>−1</sup>) time step restriction
Journal of Computational Physics
The extreme eigenvalues of the Chebyshev pseudospectral differentiation operator are O(N<sup>2</sup>), where N is the number of grid points. As a result of this, the allowable time step in an explicit time marching algorithm is O(N<sup>−2</sup>) which, in many cases, is much below the time step dictated by the physics of the PDE. In this paper we introduce a new differentiation operator whose eigenvalues are O (N) and the allowable time step is O (N<sup>−1</sup>). The new algorithm is based on interpolating at the zeroes of a parameter dependent, nonperiodic trigonometric function. The properties of the new algorithm are similar to those of the Fourier method but in addition it provides highly accurate solution for nonperiodic boundary value problems. © 1993 by Academic Press, Inc.
["Kosloff D.", "Tal-Ezer H."]
["7003414015", "6506582879"]
1,993
202
[]
10.1006/jcph.1993.1044
Article
English
[{"id": "60005681", "name": "Department of Geophysical and Planetary Sciences, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel-Aviv University, Tel-Aviv 69 978, Israel", "fullName": "Department of Geophysical and Planetary Sciences, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel-Aviv University", "reference": "a", "fullAddress": "Tel-Aviv 69 978, Israel", "departmentId": "103328576"}, {"id": "60005681", "name": "Institute for Computer Applications in Science and Engineering, School of Mathematical Sciences, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel-Aviv University, Tel-Aviv 69 978, Israel", "fullName": "Institute for Computer Applications in Science and Engineering, School of Mathematical Sciences, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel-Aviv University", "reference": "b", "fullAddress": "Tel-Aviv 69 978, Israel", "departmentId": "106053000"}]
315
18,038
Supersymmetric models on the lattice
Physics Letters B
We construct the d=2 Wess-Zumino model and the d=4N=2 supersymmetric gauge theory on the lattice, in the hamiltonian formalism. The models have the correct tree level continuum limit. Using the Kähler-Dirac formalism, we show that on the lattice a full cubic symmetry is preserved. A strong coupling calculation shows the possibility of spontaneous breaking of supersymmetry for the d=2 model. © 1982.
["Elitzur S.", "Rabinovici E.", "Schwimmer A."]
["6701844956", "7003511276", "7004227220"]
1,982
96
[]
10.1016/0370-2693(82)90269-6
Article
English
[{"id": "60019778", "name": "CERN, Geneva, Switzerland", "fullName": "CERN", "reference": "a", "fullAddress": "Geneva, Switzerland", "departmentId": null}]
316
18,096
Generating line spectra from experimental responses. Part II: Storage and loss functions
Rheologica Acta
A computer algorithm is described which allows the determination of a discrete distribution of relaxation times from simulated or smoothed storage or loss modulus data, or of retardation times from simulated or smoothed storage or loss compliance data. The distributions faithfully reproduce the input data and are suitable for data storage as well as for generating any other response curves. © 1993 Steinkopff-Verlag.
["Tschoegl N.W.", "Emri I."]
["6603711660", "7004408140"]
1,993
75
["Algorithm", "line spectrum", "loss compliance", "loss modulus", "relaxation spectrum", "retardation spectrum", "storage compliance", "storage modulus"]
10.1007/BF00434196
Article
English
[{"id": "60031106", "name": "Mechanical Engineering Department, University of Ljubljana, Ljubljana, 61000, Murnikova 2, Slovenia", "fullName": "Mechanical Engineering Department, University of Ljubljana", "reference": "a", "fullAddress": "Ljubljana, 61000, Murnikova 2, Slovenia", "departmentId": "104580703"}, {"id": "60031581", "name": "California Institute of Technology, Pasadena, 91125, CA, 1201 East California Boulevard, United States", "fullName": "California Institute of Technology", "reference": "b", "fullAddress": "Pasadena, 91125, CA, 1201 East California Boulevard, United States", "departmentId": null}]
317
18,135
Efficient parallel communication schemes for computational fluid dynamics codes
AIAA Journal
A scheme for improving the efficiency of communications fer the parallel computation of Euler equations is presented. The NPARC (National PARC) code is employed as an example for analyzing the flow through a supersonic inlet. The flowfield is divided into subregions called blocks. The parallel computation of the problem normally requires commanication between each block after each time step of an explicit Runge-Kutta integration scheme. In the developed procedure, the boundary conditions are frozen for k = 10-29 time steps, and blocks are integrated in time without communication with each other during this period. When the boundary conditions are updated, an oscillatory error rs introduced into the solution with a fundamental period of 4k time steps, which is then filteted in time. As a result, the communication cost of parallel computing is significantly reduced. Examples for steady and presented to demonstrate the applicability of the developed procedure.
["Gopalaswamy N.", "Ecer A.", "Akay H.U.", "Chien Y.P."]
["55689279000", "7006552587", "24532717000", "7201952432"]
1,998
4
[]
10.2514/2.465
Article
English
[{"id": "60024609", "name": "Indiana University, Purdue University at Indianapolis, Indianapolis, IN 46202, United States", "fullName": "Indiana University, Purdue University at Indianapolis", "reference": "a", "fullAddress": "Indianapolis, IN 46202, United States", "departmentId": null}, {"id": "109937358", "name": "Department of Mechanical Engineering, Compl. Fluid Dynamics Laboratory, Purdue Sch. of Eng. and Technology, 723 West Michigan Street, United States", "fullName": "Department of Mechanical Engineering, Compl. Fluid Dynamics Laboratory, Purdue Sch. of Eng. and Technology", "reference": "b", "fullAddress": "723 West Michigan Street, United States", "departmentId": "112783513"}, {"id": "109937358", "name": "Department of Electrical Engineering, Compl. Fluid Dynamics Laboratory, Purdue Sch. of Eng. and Technology, 723 West Michigan Street, United States", "fullName": "Department of Electrical Engineering, Compl. Fluid Dynamics Laboratory, Purdue Sch. of Eng. and Technology", "reference": "c", "fullAddress": "723 West Michigan Street, United States", "departmentId": "113051236"}]
318
18,147
Exact decomposition of the algebraic Riccati equation of deterministic multimodeling optimal control problems
IEEE Transactions on Automatic Control
In this paper we show how to exactly decompose the algebraic Riccati equations of deterministic multimodeling in terms of one pure-slow and two pure-fast algebraic Riccati equations. The algebraic Riccati equations obtained are of reduced-order and nonsymmetric. However, their O(∈) perturbations(where ∈ = ∥<sub>∈2</sub><sup>∈⊥</sup>∥ and ∈<sub>⊥</sub>, ∈<sub>2</sub> are small positive singular perturbation parameters) are symmetric. The Newton method is perfectly suited for solving the nonsymmetric reduced-order pure-slow and pure-fast algebraic Riccati equations since excellent initial guesses are available from their O(∈) perturbed reduced-order symmetric algebraic Riccati equations that can be solved rather easily. The proposed decomposition scheme might facilitates new approaches to mutimodeling control problems that are conceptually simpler and numerically more efficient than the ones previously used. © 2000 IEEE.
["Coumarbatch C.", "Gajic Z."]
["6507147214", "55307612500"]
2,000
17
["Algebraic riccati equation", "Linear systems", "Multimodeling", "Optimal control", "Singular perturbations"]
10.1109/9.847124
Article
English
[{"id": "60119141", "name": "Department of Mathematics, Rutgers University, New Brunswick, NJ 08903, United States", "fullName": "Department of Mathematics, Rutgers University", "reference": "a", "fullAddress": "New Brunswick, NJ 08903, United States", "departmentId": "123158424"}, {"id": "60119141", "name": "Department of Electrical and Computer Engineering, Rutgers University, Piscataway, NJ 08854-8058, United States", "fullName": "Department of Electrical and Computer Engineering, Rutgers University", "reference": "b", "fullAddress": "Piscataway, NJ 08854-8058, United States", "departmentId": "123139397"}]
319
18,209
Affinity Capillary Electrophoresis: Insights into the Binding of SH3 Domains by Peptides Derived from an SH3-Binding Protein
Journal of Organic Chemistry
null
["Gomez F.A.", "Chen J.K.", "Tanaka A.", "Schreiber S.L.", "Whitesides G.M."]
["7202331339", "57208460412", "57216593964", "55089588600", "55711979600"]
1,994
24
[]
10.1021/jo00089a038
Article
English
[{"id": "60009982", "name": "Department of Chemistry, Harvard University, Cambridge, Massachusetts 02138, 12 Oxford Street, United States", "fullName": "Department of Chemistry, Harvard University", "reference": "a", "fullAddress": "Cambridge, Massachusetts 02138, 12 Oxford Street, United States", "departmentId": "108166116"}]
320
18,327
Optimal incentive contracts with imperfect information
Journal of Economic Theory
null
["Harris M.", "Raviv A."]
["44061510400", "7004166893"]
1,979
425
[]
10.1016/0022-0531(79)90073-5
Article
English
[{"id": "60027950", "name": "Graduate School of Industrial Administration, Carnegie-Mellon University, Pittsburgh, PA 15213, United States", "fullName": "Graduate School of Industrial Administration, Carnegie-Mellon University", "reference": "a", "fullAddress": "Pittsburgh, PA 15213, United States", "departmentId": "122377851"}]
321
18,394
Preprogramming Knowledge: A Major Source of Misconceptions in Novice Programmers
Human-Computer Interaction
We present a process model to explain bugs produced by novices early in a programming course. The model was motivated by interviews with novice programmers solving simple programming problems. Our key idea is that many programming bugs can be explained by novices inappropriately using their knowledge of step-by-step procedural specifications in natural language. We view programming bugs as patches generated in response to an impasse reached by the novice while developing a program. We call such patching strategies bug generators. Several of our bug generators describe how natural language preprogramming knowledge is used by novices to create patches. Other kinds of bug generators are also discussed. We describe a representation both for novice natural language preprogramming knowledge and novice fragmentary programming knowledge. Using these representations and the bug generators, we evaluate the model by analyzing four interviews with novice programmers. © 1985 Lawrence Erlbaum Associates, Inc. All right reserved.
["Bonar J.", "Soloway E."]
["7006461071", "7005901938"]
1,985
88
[]
10.1207/s15327051hci0102_3
Article
English
[{"id": "60015543", "name": "University of Pittsburgh, United States", "fullName": "University of Pittsburgh", "reference": "a", "fullAddress": "United States", "departmentId": null}, {"id": "60005455", "name": "Yale University, United States", "fullName": "Yale University", "reference": "b", "fullAddress": "United States", "departmentId": null}]
322
18,496
A semigroup crossed product arising in number theory
Journal of the London Mathematical Society
Recently Bost and Connes have studied an interesting C*-algebraic Hecke algebra arising in number theory. Here it is shown that this algebra can be realised as a semigroup crossed product, and be profitably studied using methods developed by the authors for analysing Toeplitz algebras. One main result is a characterisation of faithful representations of the Hecke algebra.
["Laca M.", "Raeburn I."]
["57551603200", "7003993454"]
1,999
39
[]
10.1112/S0024610798006620
Article
English
[]
323
18,535
Monetary control with an exchange rate objective: The bank of Japan, 1973-86
Journal of International Money and Finance
This paper analyzes the switch in monetary control procedures by the Bank of Japan toward a so-called 'money-focused' monetary policy in the mid-1970s. The extent to which monetary control under the new regime has been limited by an exchange rate objective is examined. Through estimation of an explicit Bank of Japan (BoJ) reaction function, we find evidence that the BoJ operating instrument has been systematically manipulated with a view to maintain short-term money control but that this objective has often been dominated by an attempt to moderate yen- dollar exchange rate fluctuations. © 1988.
["Hutchison M.M."]
["7006152180"]
1,988
14
[]
10.1016/0261-5606(88)90030-7
Article
English
[{"id": "60024941", "name": "University of California at Santa Cruz, Santa Cruz, CA 95064, United States", "fullName": "University of California at Santa Cruz", "reference": "a", "fullAddress": "Santa Cruz, CA 95064, United States", "departmentId": null}, {"id": "60031864", "name": "Federal Reserve Bank of San Francisco, San Francisco, CA 94105, United States", "fullName": "Federal Reserve Bank of San Francisco", "reference": "b", "fullAddress": "San Francisco, CA 94105, United States", "departmentId": null}]
324
18,537
Performance measure manipulation
Contemporary Accounting Research
A two-period model in which communication restrictions preclude the usual revelation representation is analyzed, and the communication policies take on the appearance of "income smoothing." The driving force is the information content of the "smoothed" or manipulated series, relative to its counterpart were manipulation not possible. Various possibilities arise, depending on the underlying stochastic structure: performance measure manipulation might be socially efficient, or not; and when it is best to invite and motivate this manipulation, the optimal policy itself can take on a variety of forms.
["Demski J.S."]
["6603908700"]
1,998
162
[]
10.1111/j.1911-3846.1998.tb00560.x
Article
English
[{"id": "60013959", "name": "University of Florida, United States", "fullName": "University of Florida", "reference": "a", "fullAddress": "United States", "departmentId": null}]
325
18,548
Refined Gibbs conditioning principle for certain infinite dimensional statistics
Studia Scientiarum Mathematicarum Hungarica
Let X<sub>1</sub>, X<sub>2</sub>, X<sub>3</sub>, . . . be independent, identically distributed random observations taking values in a Polish space Σ, and Θ a statistic on Σ with values in a separable Banach space E. We examine the limit law of (X<sub>1</sub>, . . . , X<sub>k</sub>) conditional on n<sup>-1</sup> Σ<sub>i=1</sub><sup>n</sup> Θ(X<sub>i</sub>) being in an open convex subset D of E. In this setting the conditional limit law is a k-fold product probability (P*)<sup>k</sup>, where P* is determined by the Gibbs conditioning principle. Our results describe the allowed dependence of k = k(n) on n in terms of explicit geometric conditions related to smoothness of ∂D at a dominating point.
["Dembo A.", "Kuelbs J."]
["7102987681", "6603049286"]
1,998
3
["Conditional limit theorems", "Gibbs conditioning principle", "Infinite dimensional statistics", "Large deviation probabilities", "Relative entropy"]
null
Article
English
[{"id": "60012708", "name": "Department of Mathematics, Stanford University, Stanford, CA 94305, United States", "fullName": "Department of Mathematics, Stanford University", "reference": "a", "fullAddress": "Stanford, CA 94305, United States", "departmentId": "103672847"}, {"id": "60032179", "name": "Department of Mathematics, University of Wisconsin, Madison, WI 53706, 480 Lincoln Drive, United States", "fullName": "Department of Mathematics, University of Wisconsin", "reference": "b", "fullAddress": "Madison, WI 53706, 480 Lincoln Drive, United States", "departmentId": "105409228"}]
326
18,553
Maximum likelihood estimation in misspecified generalized linear models
Statistics
null
["Fahbmeir L."]
["57065711500"]
1,990
34
["asymptotic properties", "Generalized linear models", "maximum likelihood estimation", "misspecification"]
10.1080/02331889008802259
Article
English
[{"id": "60030807", "name": "University of Regensburg, Germany", "fullName": "University of Regensburg", "reference": "a", "fullAddress": "Germany", "departmentId": null}]
327
18,743
Optical implementation of visible gray-image morphology with the visual-area-coding technique
Applied Optics
We present a novel scheme of visible gray-image morphology with the visual-area-coding technique (VACT). The VACT is a technique of digitized analog–optical computing in which data are converted into visible coded patterns and processed with the visible form. Because the achievable operations in the VACT are identical to those of mathematical morphology, mathematical morphology is adapted to gray-image morphology with the VACT. Computer simulation and optical experiments of the several operations in mathematical morphology verify the correctness of the proposed technique. The processing capacity of the proposed method is estimated in terms of the space–bandwidth product. © 1996 Optical Society of America.
["Konishi T.", "Taniguchi S.", "Tanida J.", "Ichioka Y."]
["7402973594", "35779239700", "7005728716", "35561375500"]
1,996
4
["Digital halftoning", "Digitized analog–optical computing", "Gray-image morphology", "Mathematical morphology", "Visualization"]
10.1364/AO.35.001234
Article
English
[{"id": "60024322", "name": "Department of Applied Physics, Faculty of Engineering, Osaka University, Suita, Osaka, 565, 2-1 Yamadaoka, Japan", "fullName": "Department of Applied Physics, Faculty of Engineering, Osaka University", "reference": "a", "fullAddress": "Suita, Osaka, 565, 2-1 Yamadaoka, Japan", "departmentId": "112868366"}]
328
18,759
Classification of three-particle states according to SU<sub>3</sub>
Journal of Mathematical Physics
It is shown that the set of states for three noninteracting particles can be put into a one-to-one correspondence with the set of irreducible representations of SU<sub>3</sub>. This classification leads to three-particle angular momentum states which treat all particles on an equal footing. The states exhibit the maximum localization compatible with a given total energy, momentum, and angular momentum. Only nonrelativistic particles are treated.
["Dragt A.J."]
["7003745381"]
1,965
117
[]
10.1063/1.1704306
Article
English
[{"id": "60027485", "name": "Institute for Advanced Study, Princeton, NJ, United States", "fullName": "Institute for Advanced Study", "reference": "a", "fullAddress": "Princeton, NJ, United States", "departmentId": null}]
329
18,997
Nonlinear errors in variables Estimation of some Engel curves
Journal of Econometrics
The most common solution to the errors in variables problem for the linear regression model is the use of instrumental variable estimation. However, this methodology cannot be applied in the nonlinear regression framework. In this paper we develop consistent estimators for nonlinear regression specifications when errors in variables are present. We apply our methodology to estimation of Engel curves on household data. First, we find that the 'Lesser-Working' specification of budget shares regressed on the log of income or expenditure should be generalized to higher-order terms in log income. Also, we find that errors in variables in either reported income or expenditure should be accounted for. Lastly and perhaps most interesting, we find rather strong support for the Gorman rank restriction on the matrix of coefficients for the polynomial terms in income. © 1995.
["Hausman J.A.", "Newey W.K.", "Powell J.L."]
["7006286384", "6603072064", "7403542084"]
1,995
108
["Engel curves", "Errors in variables"]
10.1016/0304-4076(94)01602-V
Article
English
[{"id": "60022195", "name": "Department of Economics, MIT, Cambridge, MA 02139, United States", "fullName": "Department of Economics, MIT", "reference": "a", "fullAddress": "Cambridge, MA 02139, United States", "departmentId": "105332148"}, {"id": "60003269", "name": "Princeton University, Princeton, NJ 08544, United States", "fullName": "Princeton University", "reference": "b", "fullAddress": "Princeton, NJ 08544, United States", "departmentId": null}]
330
19,106
Orienting polygonal parts without sensors
Algorithmica
In manufacturing it is often necessary to orient parts prior to packing or assembly. We say that a planar part is polygonal if its convex hull is a polygon. We consider the following problem: given a list of n vertices describing a polygonal part whose initial orientation is unknown, find the shortest sequence of mechanical gripper actions that is guaranteed to orient the part up to symmetry in its convex hull. We show that such a sequence exists for any polygonal part by giving an O[n<sup> 2</sup> log n) algorithm for finding the sequence. Since the gripper actions do not require feedback, this result implies that any polygonal part can be oriented without sensors. © 1993 Springer-Verlag New York Inc.
["Goldberg K.Y."]
["35453491100"]
1,993
292
["Compliance", "Compliant motion planning", "Grasping", "Motion planning with uncertainty", "Parts feeding", "Planning", "Robotics"]
10.1007/BF01891840
Article
English
[{"id": "60029311", "name": "Institute for Robotics and Intelligent Systems, Computer Science Department, University of Southern California, Los Angeles, 90089-0273, CA, United States", "fullName": "Institute for Robotics and Intelligent Systems, Computer Science Department, University of Southern California", "reference": "a", "fullAddress": "Los Angeles, 90089-0273, CA, United States", "departmentId": "100243703"}]
331
19,295
Dilation shift under duality and torsion of elliptic complex
Nuclear Physics, Section B
We observe that the ratio of determinants of 2d laplacians which appear in the duality transformation relating two sigma models with abelian isometries can be represented as a torsion of an elliptic (DeRham) complex. As a result, this ratio can be computed exactly and is given by the exponential of local functional of 2d metric and target space metric. In this way the well-known dilation shift under duality is reproduced. We also present the exact computation of the determinant which appears in the duality transformation in the path integral. © 1993.
["Schwarz A.S.", "Tseytlin A.A."]
["57203056218", "7103019887"]
1,993
59
[]
10.1016/0550-3213(93)90514-P
Article
English
[{"id": "60014439", "name": "Department of Mathematics, University of California, Davis, CA 95616, United States", "fullName": "Department of Mathematics, University of California", "reference": "a", "fullAddress": "Davis, CA 95616, United States", "departmentId": "103749721"}, {"id": "60015150", "name": "Theoretical Physics Group, Blackett Laboratory, Imperial College, London, SW7 2BZ, United Kingdom", "fullName": "Theoretical Physics Group, Blackett Laboratory, Imperial College", "reference": "b", "fullAddress": "London, SW7 2BZ, United Kingdom", "departmentId": "103779684"}]
332
19,339
Nonlinear transport in semi-insulating GaAs: Critical fields and nucleation of high-field domains
Physical Review B
Time-resolved local voltage profiling in semi-insulating GaAs by electro-optics shows spontaneous current oscillations being caused both by contact domains and propagating domains in the bulk. In particular, we prove that the critical electric fields in the bulk are much higher than the average field inferred from geometry and exceed the threshold field for the Gunn effect. The dynamics of domain propagation are governed by the interaction between two different oscillatory systems, namely the contact region and bulk GaAs. © 1994 The American Physical Society.
["Willing B.", "Maan J.C."]
["36348009100", "7004549056"]
1,994
20
[]
10.1103/PhysRevB.49.13995
Article
English
[{"id": "60068556", "name": "Grenoble High Magnetic Field Laboratory, Max-Planck-Institut für Festkörperforschung, F-38042 Grenoble, 25 avenue de Martyrs, France", "fullName": "Grenoble High Magnetic Field Laboratory, Max-Planck-Institut für Festkörperforschung", "reference": "a", "fullAddress": "F-38042 Grenoble, 25 avenue de Martyrs, France", "departmentId": null}]
333
19,401
The nucleon as a bound state of three quarks and deep inelastic phenomena
Nuclear Physics, Section B
We present a description of deep inelastic ep and νp scattering. The nucleon is described as a bound state of three quarks in the p→∞ frame. The constituent quarks have themselves a structure suggested by the quark gluon parton model. We thus obtain a good fit to existing data. This fit requires that SU(6)<sub>w</sub>⊗ O(3) is broken at p→∞ by small configuration mixing. © 1974.
["Altarelli G.", "Cabibbo N.", "Maiani L.", "Petronzio R."]
["7003849266", "6603927986", "7003426392", "7004338350"]
1,974
146
[]
10.1016/0550-3213(74)90452-0
Article
English
[{"id": "60032350", "name": "Istituto di Fisica dell'Università, Roma, Italy", "fullName": "Istituto di Fisica dell'Università", "reference": "a", "fullAddress": "Roma, Italy", "departmentId": null}, {"id": "60019778", "name": "CERN, Geneva, Switzerland", "fullName": "CERN", "reference": "b", "fullAddress": "Geneva, Switzerland", "departmentId": null}, {"id": "60032350", "name": "Istituto di Fisica dell'Università, Roma, Italy", "fullName": "Istituto di Fisica dell'Università", "reference": "c", "fullAddress": "Roma, Italy", "departmentId": null}, {"id": "60021660", "name": "Istituto Nazionale di Fisica Nucleare, Sezione di Roma, Italy", "fullName": "Istituto Nazionale di Fisica Nucleare, Sezione di Roma", "reference": "d", "fullAddress": "Italy", "departmentId": "104108669"}, {"id": "60010062", "name": "Laboratori di Fisica, Istituto Superiore di Sanità, Roma, Italy", "fullName": "Laboratori di Fisica, Istituto Superiore di Sanità", "reference": "e", "fullAddress": "Roma, Italy", "departmentId": "103550447"}, {"id": "60021660", "name": "Istituto Nazionale di Fisica Nucleare, Sezione Sanità, Roma, Italy", "fullName": "Istituto Nazionale di Fisica Nucleare, Sezione Sanità", "reference": "f", "fullAddress": "Roma, Italy", "departmentId": "104108684"}, {"id": "60032350", "name": "Istituto di Fisica dell'Università, Roma, Italy", "fullName": "Istituto di Fisica dell'Università", "reference": "g", "fullAddress": "Roma, Italy", "departmentId": null}]
334
19,404
Symbolic Derivation of Finite Difference Approximations for the Three-Dimensional Poisson Equation
Numerical Methods for Partial Differential Equations
A symbolic procedure for deriving various finite difference approximations for the three-dimensional Poisson equation is described. Based on the software package Mathematica, we utilize for the formulation local solutions of the differential equation and obtain the standard second-order scheme (7-point), three fourth-order finite difference schemes (15-point, 19-point, 21-point), and one sixth-order scheme (27-point). The symbolic method is simple and can be used to obtain the finite difference approximations for other partial differential equations. © 1998 John Wiley & Sons, Inc.
["Gupta M.M.", "Kouatchou J."]
["7403983393", "6602599221"]
1,998
41
["Finite difference approximations", "Mathematica", "Poisson equation", "Symbolic computation", "Three-dimensions"]
10.1002/(SICI)1098-2426(199809)14:5<593::AID-NUM4>3.0.CO;2-D
Article
English
[{"id": "60003088", "name": "Department of Mathematics, George Washington University, Washington, DC 20052, United States", "fullName": "Department of Mathematics, George Washington University", "reference": "a", "fullAddress": "Washington, DC 20052, United States", "departmentId": "103208130"}]
335
19,414
The M/G/1 queue with processor sharing and its relation to a feedback queue
Queueing Systems
The central model of this paper is an M/M/1 queue with a general probabilistic feedback mechanism. When a customer completes his ith service, he departs from the system with probability 1-p(i) and he cycles back with probability p(i). The mean service time of each customer is the same for each cycle. We determine the joint distribution of the successive sojourn times of a tagged customer at his loops through the system. Subsequently we let the mean service time at each loop shrink to zero and the feedback probabilities approach one in such a way that the mean total required service time remains constant. The behaviour of the feedback queue then approaches that of an M/G/1 processor sharing queue, different choices of the feedback probabilities leading to different service time distributions in the processor sharing model. This is exploited to analyse the sojourn time distribution in the M/G/1 queue with processor sharing. Some variants are also considered, viz., an M/M/1 feedback queue with additional customers who are always present, and an M/G/1 processor sharing queue with feedback. © 1991 J.C. Baltzer A.G. Scientific Publishing Company.
["van den Berg J.L.", "Boxma O.J."]
["7201552416", "7006259953"]
1,991
48
["M/G/1 processor sharing queue", "M/M/1 feedback queue", "sojourn times"]
10.1007/BF01159223
Article
English
[{"id": "60011575", "name": "Centre for Mathematics and Computer Science, AB Amsterdam, 1009, P.O. Box 4079, Netherlands", "fullName": "Centre for Mathematics and Computer Science", "reference": "a", "fullAddress": "AB Amsterdam, 1009, P.O. Box 4079, Netherlands", "departmentId": null}, {"id": "60011575", "name": "Centre for Mathematics and Computer Science, AB Amsterdam, 1009, P.O. Box 4079, Netherlands", "fullName": "Centre for Mathematics and Computer Science", "reference": "b", "fullAddress": "AB Amsterdam, 1009, P.O. Box 4079, Netherlands", "departmentId": null}, {"id": "60017145", "name": "Faculty of Economics, Tilburg University, LE Tilburg, 5000, P.O. Box 90153, Netherlands", "fullName": "Faculty of Economics, Tilburg University", "reference": "c", "fullAddress": "LE Tilburg, 5000, P.O. Box 90153, Netherlands", "departmentId": "103886406"}]
336
19,452
The asymptotic behavior of ε-entropy of a compact positive operator
Journal of Mathematical Analysis and Applications
The purpose of this paper is to apply the methods of real analysis to the investigation of the asymptotic behavior of ε-entropy of a compact positive operator for sufficiently small ε > 0. The lower growth order about the ε-entropy of a compact positive operator is characterized by the proper values associated with this operator. Moreover, about the ε-entropy per unit time of convolution operators generated by a continuous, positive definite and Lebesgue integrable function, both the upper and the lower growth orders are characterized by the spectral density associated with this function. © 1990.
["Akashi S."]
["55352944900"]
1,990
13
[]
10.1016/0022-247X(90)90276-L
Article
English
[{"id": "60009551", "name": "Department of Information Science, Shonan Institute of Technology, Fujisawa-shi, Kanagawa-ken, 251, 1-1-25, Nishikaigan, Tsujido, Japan", "fullName": "Department of Information Science, Shonan Institute of Technology", "reference": "a", "fullAddress": "Fujisawa-shi, Kanagawa-ken, 251, 1-1-25, Nishikaigan, Tsujido, Japan", "departmentId": "100273344"}]
337
19,511
Infinite dimensional backstepping-style feedback transformations for a heat equation with an arbitrary level of instability
European Journal of Control
We consider feedback transformations of the back-stepping/feedback linearization type that have been prevalent in finite dimensional nonlinear stabilization, and, with the objective of ultimately addressing nonlinear PDEs, generate the first such transformations for a linear PDE that can. have an arbitrary finite number of open-loop unstable eigenvalues. These transformations have the form of recursive relationships and the fundamental difficulty is that the recursion has an infinite number of iterations. Naive versions of backstepping lead to unbounded coefficients in those transformations. We show how to design them such that they are sufficiently regular (not continuous but L<sub>∞</sub>. We then establish closed-loop stability, regularity of control, and regularity of solutions of the PDE. © 2002 EUCA.
["Balogh A.", "Krstic M."]
["7202643851", "26643475500"]
2,002
72
["Backstepping", "Boundary control", "Heat equation", "Partial differential equations"]
10.3166/ejc.8.165-175
Article
English
[{"id": "60030612", "name": "Department of MAE, University of California, San Diego, San Diego, CA 92093-0411, United States", "fullName": "Department of MAE, University of California, San Diego", "reference": "a", "fullAddress": "San Diego, CA 92093-0411, United States", "departmentId": "104548182"}]
338
19,574
Adiabatic coupled-channels evaluation of inelastic scattering
Journal of Physics G: Nuclear Physics
Using the ‘adiabatic’ assumptions of Austern and Blair one can derive an expression for the inelastic S' matrix which is valid for arbitrary coupling strength. The power-series expansion of this expression is shown to correspond to the infinite-order distorted-wave approximation whose nth-order term contains the nth derivative of the elastic S matrix. The results of the adiabatic coupled-channels method are numerically compared with those obtained from other approximations. © 1986 The Institute of Physics.
["Nagarajan M.A.", "Rowley N."]
["22962962600", "56262724200"]
1,986
27
[]
10.1088/0305-4616/12/6/011
Article
English
[{"id": "60004762", "name": "SERC Daresbury Laboratory, Daresbury, Warrington, WA4 4AD, United Kingdom", "fullName": "SERC Daresbury Laboratory", "reference": "a", "fullAddress": "Daresbury, Warrington, WA4 4AD, United Kingdom", "departmentId": null}, {"id": "60031569", "name": "University of the Western Cape, Bellville, 7530, Private Bag X17, South Africa", "fullName": "University of the Western Cape", "reference": "b", "fullAddress": "Bellville, 7530, Private Bag X17, South Africa", "departmentId": null}]
339
19,618
Vehicle routing with stochastic demands and restricted failures
ZOR Zeitschrift für Operations Research Methods and Models of Operations Research
This paper considers a class of stochastic vehicle routing problems (SVRPs) with random demands, in which the number of potential failures per route is restricted either by the data or the problem constraints. These are realistic cases as it makes little sense to plan vehicle routes that systematically fail a large number of times. First, a chance constrained version of the problem is considered which can be solved to optimality by algorithms similar to those developed for the deterministic vehicle routing problem (VRP). Three classes of SVRP with recourse are then analyzed. In all cases, route failures can only occur at one of the last k customers of the planned route. Since in general, SVRPs are considerably more intractable than the deterministic VRPs, it is interesting to note that these realistic stochastic problems can be solved as a sequence of deterministic traveling salesman problems (TSPs). In particular, when k=1 the SVRP with recourse reduces to a single TSP. © 1993 Physica-Verlag.
["Dror M.", "Laporte G.", "Louveaux F.V."]
["7005100478", "7101734278", "6603153633"]
1,993
38
[]
10.1007/BF01415995
Article
English
[{"id": "60010065", "name": "Decision Sciences, College of Business and Public Adminstration, The University of Arizona, Tucson, 85721, Arizona, United States", "fullName": "Decision Sciences, College of Business and Public Adminstration, The University of Arizona", "reference": "a", "fullAddress": "Tucson, 85721, Arizona, United States", "departmentId": "103550726"}, {"id": "60009507", "name": "Centre de recherche sur les trasports, Université de Montréal, H3C 3J7, succursale A. Montreal, Canada, Canada", "fullName": "Centre de recherche sur les trasports, Université de Montréal", "reference": "b", "fullAddress": "H3C 3J7, succursale A. Montreal, Canada, Canada", "departmentId": "103520454"}, {"id": "60006635", "name": "Facultés Universitaires Notre-Dame de la Paix, Namur, 5000, 8 Rempart de la Vierge, Belgium", "fullName": "Facultés Universitaires Notre-Dame de la Paix", "reference": "c", "fullAddress": "Namur, 5000, 8 Rempart de la Vierge, Belgium", "departmentId": null}]
340
19,686
Error bounds for solutions of linear equations and inequalities
ZOR Mathematical Methods of Operations Research
Given a system of linear equations and inequalities in n variables, a famous result due to A. J. Hoffman (1952) says that the distance of any point in ℝ<sup>n</sup> to the solution set of this system is bounded above by the product of a positive constant and the absolute residual. We shall discuss explicit representations of this constant in dependence upon the pair of norms used for the estimation. A method for computing a special form of Hoffman constants is proposed. Finally, we use these results in the analysis of Lipschitz continuity for solutions of parametric quadratic programs. © 1995 Physica-Verlag.
["Klatte D.", "Thiere G."]
["6603755164", "6507960663"]
1,995
44
[]
10.1007/BF01432655
Article
English
[{"id": "60012614", "name": "Institut für Operations Research, Universität Zürich, Zürich, 8044, Moussonstraße 15, Switzerland", "fullName": "Institut für Operations Research, Universität Zürich", "reference": "a", "fullAddress": "Zürich, 8044, Moussonstraße 15, Switzerland", "departmentId": "103667734"}, {"id": null, "name": "Halle/Saale, 06108, Gr. Steinstraße 10, Germany", "fullName": null, "reference": "b", "fullAddress": "Halle/Saale, 06108, Gr. Steinstraße 10, Germany", "departmentId": null}]
341
19,756
GT cell formation for minimizing the intercell parts flow
International Journal of Production Research
A methodology is proposed to design a GT cell by considering the intercell parts flow in GT cellular manufacturing systems. The problem of GT cell formation is described in a graph using the quantities to be produced in the specified time period and the process routes for producing the products. The objective of this paper is to minimize the total number of parts produced in more than one cell. The problem, formulated as a quadratic assignment problem (QAP), is solved using both Lagrangean relaxation technique and the optimality conditions of quadratic program. Furthermore, in order to obtain the giobal optimal solution rather than the local optimal solution, a branch-and-bound algorithm is employed. Finally, numerical examples are used to show the effectiveness of the solution techniques and GT cell formation procedure. Moreover, a computer simulation is presented, showing the effectiveness of cellular manufacturing systems. © 1992 Taylor & Francis Group, LLC.
["Song S.", "Hitomi K.", "Hitomi K.", "Hitomi K."]
["7403350157", "56938147700", "57029992600", "57029974400"]
1,992
42
[]
10.1080/00207549208948188
Article
English
[{"id": "60019716", "name": "Department of Industrial Engineering, Hiroshima Institute of Technology, Saeki-ku, Hiroshima, 731-51, 2-1-1, Miyake, Japan", "fullName": "Department of Industrial Engineering, Hiroshima Institute of Technology", "reference": "a", "fullAddress": "Saeki-ku, Hiroshima, 731-51, 2-1-1, Miyake, Japan", "departmentId": "104005240"}, {"id": "60011001", "name": "Department of Precision Engineering, Kyoto University, Japan", "fullName": "Department of Precision Engineering, Kyoto University", "reference": "b", "fullAddress": "Japan", "departmentId": "103592634"}, {"id": "60016835", "name": "Beijing Institute of Technology, Southwestern Jiaotong University, China", "fullName": "Beijing Institute of Technology, Southwestern Jiaotong University", "reference": "c", "fullAddress": "China", "departmentId": null}, {"id": "60033100", "name": "Nanjing University, China", "fullName": "Nanjing University", "reference": "d", "fullAddress": "China", "departmentId": null}, {"id": "60011132", "name": "Ohio University, OH, United States", "fullName": "Ohio University", "reference": "e", "fullAddress": "OH, United States", "departmentId": null}]
342
19,758
New Connectivity and MSF Algorithms for Shuffle-Exchange Network and Pram
IEEE Transactions on Computers
Parallel algorithms for finding the connected components (CC) and a minimum spanning FOREST (MSF) of an undirected graph are presented. The primary model of computation considered is that called “shuffle-exchange network” in which each processor has its own local memory, no memory is shared, and communication among processors is done via a fixed degree network. This model is very convenient for actual realization. Both algorithms have depth of 0(log2 n) while using n2 processors. Here n is the number of vertices in the graph. The algorithms are first presented for the PRAM (parallel RAM) model, which is not realizable, but much more convenient for the design and presentation of algorithms. The CC and MSF algorithms are no exceptions. The CC PRAM algorithm is a simplification of the one appearing in [17]. A modification of this algorithm yields a simple and efficient MSF algorithm. Both have depth of O(log m) and they use m processors, where m is the number of edges in the graph. Copyright © 1987 by The Institute of Electrical and Electronics Engineers, Inc.
["Awerbuch B."]
["7005991913"]
1,987
78
["Connectivity", "parallel algorithms", "PRAM's shuffle-exchange network", "spanning trees"]
10.1109/TC.1987.1676869
Article
English
[{"id": "60022195", "name": "Department of Mathematics and Laboratory for Computer Science, Massachusettes Institute of Technology, Cambridge, MA 02139, United States", "fullName": "Department of Mathematics and Laboratory for Computer Science, Massachusettes Institute of Technology", "reference": "a", "fullAddress": "Cambridge, MA 02139, United States", "departmentId": "121579677"}, {"id": "100332707", "name": "Elbit Computers, Ltd., Haifa 31053, Israel", "fullName": "Elbit Computers, Ltd.", "reference": "b", "fullAddress": "Haifa 31053, Israel", "departmentId": null}]
343
19,770
The exact mass gap of the Gross-Neveu model (II). The 1/N expansion
Nuclear Physics, Section B
The ratio of the mass gap to the Λ-parameter for the O(N) symmetric Gross-Neveu model is calculated to order 1/N. The result agrees with an exact formula derived previously by us. Furthermore the exact result is compared to estimates obtained from latticesimulations. © 1991.
["Forgács P.", "Niedermayer F.", "Weisz P."]
["7006665824", "7004760570", "56247614600"]
1,991
25
[]
10.1016/0550-3213(91)90045-Y
Article
English
[{"id": "60008743", "name": "Max-Planck-Institut für Physik - Werner-Heisenberg-Institut -, Munich, P.O. Box 40 12 12, Germany", "fullName": "Max-Planck-Institut für Physik - Werner-Heisenberg-Institut -", "reference": "a", "fullAddress": "Munich, P.O. Box 40 12 12, Germany", "departmentId": null}]
344
19,790
A 1-tough nonhamiltonian maximal planar graph
Discrete Mathematics
We construct a maxima' planar graph which is 1-tough but nonhamiltonian. The graph is an answer to Chvátal's question on the existence of such a graph. © 1980.
["Nishizeki T."]
["35566456900"]
1,980
22
[]
10.1016/0012-365X(80)90240-X
Article
English
[{"id": "60008435", "name": "Department of Electrical Communications, Faculty of Engineering, Tohoku University, Sendai, Japan 980, Japan", "fullName": "Department of Electrical Communications, Faculty of Engineering, Tohoku University", "reference": "a", "fullAddress": "Sendai, Japan 980, Japan", "departmentId": "103469373"}]
345
19,806
The classical moment problem and the calculation of thermal averages
Journal of Mathematical Physics
The physical information contained in the first 2n moments of the single-particle spectral weight function of a fermionic many-body system is investigated. The approach is based on the mathematical theory of the classical moment problem. Under consideration are the thermal as well as dynamical properties of the system. Using this information, approximate n-pole single-particle thermal Green's functions and the corresponding spectral weight functions are constructed. It is shown that these approximations are not unique and depend on a real parameter. This dependence is used for the calculation of the rigorous error bounds of the approximate thermal averages.
["Lonke A."]
["23031437600"]
1,971
30
[]
10.1063/1.1665554
Article
English
[{"id": "60027161", "name": "Department of Physics, University of the Negev, Beer-Sheva, Israel", "fullName": "Department of Physics, University of the Negev", "reference": "a", "fullAddress": "Beer-Sheva, Israel", "departmentId": "107889096"}]
346
19,907
Accomplishment of difficult chemical separations using solid phase extraction
Pure and Applied Chemistry
A solid phase extraction (SPE) system is described which is capable of highly selective removal of trace amounts of metal ions from solutions containing matrices which normally make separations difficult. Highly acidic or basic solutions and concentrated salt mixtures are included in the matrices. Significant volume reductions can be achieved with SPE. Separations using SPE have been commercialized in both industrial and analytical applications.
["Izatt R.M.", "Bradshaw J.S.", "Bruening R.L."]
["7005745203", "7202124019", "7003873787"]
1,996
74
[]
10.1351/pac199668061237
Article
English
[{"id": "60006832", "name": "Department of Chemistry, Brigham Young University, Provo, UT 84602, United States", "fullName": "Department of Chemistry, Brigham Young University", "reference": "a", "fullAddress": "Provo, UT 84602, United States", "departmentId": "103385114"}, {"id": "60009988", "name": "IBC Advanced Technologies, Inc., American Fork, UT 84003, United States", "fullName": "IBC Advanced Technologies, Inc.", "reference": "b", "fullAddress": "American Fork, UT 84003, United States", "departmentId": null}]
347
20,146
Sequential analysis of the proportional hazards model
Biometrika
For the proportional hazards model of survival analysis, an appropriate large-sample theory is developed for cases of staggered entry and sequential analysis. The principal techniques involve an approximation of the score process by a suitable martingale and a random rescaling of time based on the observed Fisher information. As a result we show that the score process of the partial likelihood and the maximum partial likelihood estimator behave asymptotically like Brownian motion. © 1983 Biometrika Trust.
["Sellke T.", "Siegmund D."]
["6701739816", "7003780414"]
1,983
89
["Brownian motion", "Martingale", "Partial likelihood", "Sequential analysis"]
10.1093/biomet/70.2.315
Article
English
[{"id": "60009254", "name": "Department of Statistics, Purdue University, Lafayette, Indiana, United States", "fullName": "Department of Statistics, Purdue University", "reference": "a", "fullAddress": "Lafayette, Indiana, United States", "departmentId": "103505941"}, {"id": "60012708", "name": "Department of Statistics, Stanford University, Stanford, California, United States", "fullName": "Department of Statistics, Stanford University", "reference": "b", "fullAddress": "Stanford, California, United States", "departmentId": "105160691"}]
348
20,190
Applications of free entropy to finite Von Neumann algebras
American Journal of Mathematics
We apply Voiculescu's free entropy to show that free group factors do not possess a simple maximal abelian self-adjoint subalgebra, hence answering a longstanding question of Ambrose and Singer.
["Ge L."]
["35483845600"]
1,997
23
[]
10.1353/ajm.1997.0012
Article
English
[{"id": "60022195", "name": "Department of Mathematics, Massachusetts Inst. of Technology, Cambridge, MA 02139-4307, United States", "fullName": "Department of Mathematics, Massachusetts Inst. of Technology", "reference": "a", "fullAddress": "Cambridge, MA 02139-4307, United States", "departmentId": "109489178"}]
349
20,199
Topological charge, renormalization and cooling on the lattice
Nuclear Physics, Section B
We show that a definition of the topological susceptibility χ on the lattice in terms of local fields, with the proper additive and multiplicative renormalizations, is well defined, self-consistent and compatible with results we obtain by the cooling method. Moreover, we can follow the behaviour of the multiplicative renormalization during cooling, and check its dependence on the coupling constant. © 1990.
["Campostrini M.", "Di Giacomo A.", "Panagopoulos H.", "Vicari E."]
["56962752800", "7005321885", "7003729654", "7004337721"]
1,990
95
[]
10.1016/0550-3213(90)90077-Q
Article
English
[{"id": "60113665", "name": "Dipartimento di Fisica dell'Università, I.N.F.N., I-56100 Pisa, Italy", "fullName": "Dipartimento di Fisica dell'Università, I.N.F.N.", "reference": "a", "fullAddress": "I-56100 Pisa, Italy", "departmentId": null}]
350
20,240
On some classes of continuable solutions of a nonlinear differential equation
Journal of Differential Equations
null
["Cecchi M.", "Marini M.", "Villari G."]
["7005330948", "7202192497", "6701489757"]
1,995
25
[]
10.1006/jdeq.1995.1079
Article
English
[{"id": "60021859", "name": "Department of Electronic Engineering, University of Florence, 50139 Firenze, Via di S. Marta, 3, Italy", "fullName": "Department of Electronic Engineering, University of Florence", "reference": "a", "fullAddress": "50139 Firenze, Via di S. Marta, 3, Italy", "departmentId": "113777184"}, {"id": "60021859", "name": "Department of Mathematics “U. Dini„, University of Florence, 50134 Firenze, Viale Morgagni 67/a, Italy", "fullName": "Department of Mathematics “U. Dini„, University of Florence", "reference": "b", "fullAddress": "50134 Firenze, Viale Morgagni 67/a, Italy", "departmentId": "104117061"}]
351
20,288
Data sharpening as a prelude to density estimation
Biometrika
We introduce a data-perturbation method for reducing bias of a wide variety of density estimators, in univariate, multivariate, spatial and spherical data settings. The method involves 'sharpening' the data by making them slightly more clustered than before, and then computing the estimator in the usual way, but from the sharpened data rather than the original data. The transformation depends in a simple, explicit way on the smoothing parameter employed for the density estimator, which may be based on classical kernel methods, orthogonal series, histosplines, singular integrals or other linear or approximately-linear methods. Bias is reduced by an order of magnitude, at the expense of a constant-factor increase in variance. © 1999 Biometrika Trust.
["Choi E.", "Hall P."]
["7402121838", "57203346769"]
1,999
56
["Bandwidth", "Bias reduction", "Kernel density estimation", "Nadaraya-watson estimator", "Nonparametric density estimation", "Orthogonal series", "Ridge estimation"]
10.1093/biomet/86.4.941
Article
English
[{"id": "60008950", "name": "Centre for Mathematics and Its Applications, Australian National University, Canberra, ACT 0200, Australia", "fullName": "Centre for Mathematics and Its Applications, Australian National University", "reference": "a", "fullAddress": "Canberra, ACT 0200, Australia", "departmentId": "103494083"}]
352
20,289
Robust time-optimal control of flexible structures with parametric uncertainty
Journal of Dynamic Systems, Measurement and Control, Transactions of the ASME
The design of robust time-optimal controllers using the sensitivity concept is presented in this paper. A parameter optimization problem is solved using the Switch Time Optimization algorithm to determine a bang-bang control profile that minimizes the maneuver time subject to the constraint that the sensitivity of the final states with respect to system parameters are zero. The proposed approach is illustrated on the benchmark floating oscillator problem and a slewing flexible beam whose equations of motion are nonlinear. Simulation results illustrate the reduction of residual vibrations of the system subject to the robust control profile, compared to the time-optimal control profile. © 1997 ASME.
["Liu S.W.", "Singh T."]
["7409462488", "7403106258"]
1,997
26
[]
10.1115/1.2802386
Article
English
[{"id": "60032083", "name": "SUNY at Buffalo, Buffalo, NY, 14260, United States", "fullName": "SUNY at Buffalo", "reference": "a", "fullAddress": "Buffalo, NY, 14260, United States", "departmentId": null}]
353
20,317
Taking the distributed nature of cooperative work seriously
Proceedings of the 6th Euromicro Workshop on Parallel and Distributed Processing, PDP 1998
For CSCW facilities to be effective and viable, the inherently distributed nature of cooperative work must matched by a radically distributed environment. On the basis of a scenario derived from field studies, the paper describes a CSCW environment which supports the distributed construction and use of malleable and linkable coordination mechanisms. © 1998 IEEE
["Simone C.", "Schmidt K."]
["35577055900", "7403915933"]
1,998
0
[]
10.1109/EMPDP.1998.647212
Conference Paper
English
[{"id": "60012259", "name": "Dept. of Computer Sciences, University of Torino, Corso Svizzera 185, Torino, 1-10148, Italy", "fullName": "Dept. of Computer Sciences, University of Torino", "reference": "a", "fullAddress": "Corso Svizzera 185, Torino, 1-10148, Italy", "departmentId": null}, {"id": "60011373", "name": "Center for Tele-Information, Technical University of Denmark, Lyngby, DK-2800, Denmark", "fullName": "Center for Tele-Information, Technical University of Denmark", "reference": "b", "fullAddress": "Lyngby, DK-2800, Denmark", "departmentId": "103609194"}]
354
20,509
A variational equations approach to the onset of statistical intramolecular energy transfer
The Journal of Chemical Physics
Recent developments in mathematics and statistical mechanics indicate that efficient intramolecular energy transfer in coupled anharmonic oscillator systems can only occur above a critical energy E<sub>c</sub>. A simple method for computing E<sub>c</sub> is proposed and is applied to the Barbanis, Henon-Heiles, Tredgold, and Thiele-Wilson systems. The critical energy for these systems is shown to be easily and accurately predicted by this technique. Copyright © 1976 American Institute of Physics.
["Brumer P.", "Duff J.W."]
["7003714286", "57213897330"]
1,976
104
[]
10.1063/1.433586
Article
English
[{"id": "60016849", "name": "Lash Miller Chemical Laboratories, Scarborough College, University of Toronto, Toronto, Ont., Canada", "fullName": "Lash Miller Chemical Laboratories, Scarborough College, University of Toronto", "reference": "a", "fullAddress": "Toronto, Ont., Canada", "departmentId": "103868193"}]
355
20,580
Kruskal's polynomial for 2×2×2 arrays and a generalization to 2×n×n arrays
Psychometrika
A remarkable difference between the concept of rank for matrices and that for three-way arrays has to do with the occurrence of non-maximal rank. The set of n×n matrices that have a rank less than n has zero volume. Kruskal pointed out that a 2×2×2 array has rank three or less, and that the subsets of those 2×2×2 arrays for which the rank is two or three both have positive volume. These subsets can be distinguished by the roots of a certain polynomial. The present paper generalizes Kruskal's results to 2×n×n arrays. Incidentally, it is shown that two n ×n matrices can be diagonalized simultaneously with positive probability. © 1991 The Psychometric Society.
["ten Berge J.M.F."]
["7004198790"]
1,991
46
["CANDECOMP", "PARAFAC", "rank", "simultaneous diagonalization", "three-way arrays"]
10.1007/BF02294495
Article
English
[{"id": "60010023", "name": "University of Groningen, Netherlands", "fullName": "University of Groningen", "reference": "a", "fullAddress": "Netherlands", "departmentId": null}]
356
20,745
Nonlinear air-to-fuel ratio and engine speed control for spark ignition engines
ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
The wide-range of operating conditions, inherent induction process nonlinearities, and gradual component degradations due to aging, have prompted research into model-based engine control algorithms. Consequentially, a variety of nonlinear and intelligent algorithms have been proposed and experimentally studied. Recent attention has focused on the simultaneous regulation of the air-to-fuel ratio and engine speed using a sliding mode control strategy. In this paper, a nonlinear model-based backstepping control strategy will be proposed for simultaneous air-to-fuel ratio control and speed tracking in passenger/light-duty automobile engines. For comparison purposes, a multi-surface sliding mode controller and an integrated speed-density air-to-fuel controller with attached engine speed regulation will be implemented. Representative numerical results will be presented and discussed. © 2000 by ASME
["Wagner J.R.", "Dawson D.M.", "Liu Z."]
["55693743100", "25937773100", "57868222500"]
2,000
0
[]
10.1115/IMECE2000-2357
Conference Paper
English
[{"id": "60026610", "name": "Automotive Research Laboratory, Clemson University, Clemson, 29634, SC, United States", "fullName": "Automotive Research Laboratory, Clemson University", "reference": "a", "fullAddress": "Clemson, 29634, SC, United States", "departmentId": null}]
357
20,809
Correlation dimension and systematic geometric effects
Physical Review A
Correlation-dimension calculations have been widely undertaken in attempts to understand various physical and other natural phenomena. Some of these studies have perhaps been incautious in their claims. On the other hand, some authors have been sharply critical of such work. These criticisms hinge on doubts about data-set size. In particular, Smith [Phys. Lett. A 133, 283 (1988)] has suggested that 42D points are a minimum number of data points, where D is the embedding dimension. He has suggested that, as a result, correlation-dimension calculations are limited to dimensions less than 5 or 6 even on supercomputers. By implication, many published results are placed into doubt, discouraging people from undertaking such calculations. We review the concept of critical embedding dimension and undertake a detailed analysis of data-size requirements, which culminates in tight error estimates for determination of correlation dimension. We conclude that, while data requirements are still substantial, they are not nearly so extreme as has been suggested, making the determination of correlation dimension from data sets feasible. Previously reported doubtful calculations of correlation dimension can be reviewed in the light of explicit error estimates. © 1990 The American Physical Society.
["Nerenberg M.A.H.", "Essex C."]
["7003854126", "7005347167"]
1,990
153
[]
10.1103/PhysRevA.42.7065
Article
English
[{"id": "60010884", "name": "Department of Applied Mathematics, University of Western Ontario, London, Ont. N6A 5B9, Canada", "fullName": "Department of Applied Mathematics, University of Western Ontario", "reference": "a", "fullAddress": "London, Ont. N6A 5B9, Canada", "departmentId": "103587691"}]
358
20,868
The impact of the return interval on common factors in stock returns: Evidence from a thin security market
Journal of Banking and Finance
The purpose of this paper is to analyze the effect of the return interval on common factors estimated in Finnish stock returns. Firstly, common factors are identified by factor analysis using daily, weekly and monthly return intervals. The similarity of these factors is then studied applying transformation analysis. It is discovered that the factors produced by alternative return intervals significantly differ from each other. An exception is the first factor representing the market index of securities. © 1994.
["Martikainen T.", "Perttunen J.", "Yli-Olli P.", "Gunasekaran A."]
["7004305240", "7003781357", "6602729820", "56238759300"]
1,994
7
["Asset pricing", "Common factors", "Return interval", "Stock returns", "Thin trading"]
10.1016/0378-4266(94)00013-1
Article
English
[{"id": "60007154", "name": "School of Business Studies, University of Vaasa, FIN-65101 Vaasa, P.O. Box 297, Finland", "fullName": "School of Business Studies, University of Vaasa", "reference": "a", "fullAddress": "FIN-65101 Vaasa, P.O. Box 297, Finland", "departmentId": "103398587"}]
359
20,878
Estimating and Visualizing Conditional Densities
Journal of Computational and Graphical Statistics
We consider the kernel estimator of conditional density and derive its asymptotic bias, variance, and mean-square error. Optimal bandwidths (with respect to integrated mean-square error) are found and it is shown that the convergence rate of the density estimator is order n <sup>–2/3</sup>. We also note that the conditional mean function obtained from the estimator is equivalent to a kernel smoother. Given the undesirable bias properties of kernel smoothers, we seek a modified conditional density estimator that has mean equivalent to some other nonparametric regression smoother with better bias properties. It is also shown that our modified estimator has smaller mean square error than the standard estimator in some commonly occurring situations. Finally, three graphical methods for visualizing conditional density estimators are discussed and applied to a data set consisting of maximum daily temperatures in Melbourne, Australia. © 1996 American Statistical Association, Institute of Mathematical Statistics, and Interface Foundation of North America.
["Hyndman R.J.", "Bashtannyk D.M.", "Grunwald G.K."]
["7006914313", "6507481732", "7005992995"]
1,996
222
["Bandwidth", "Conditional density", "Data visualization", "Density estimation", "Kernel smoothing", "Nonparametric regression"]
10.1080/10618600.1996.10474715
Article
English
[{"id": "60019578", "name": "Department of Mathematics, Monash University, Clayton, 3168, Australia", "fullName": "Department of Mathematics, Monash University", "reference": "a", "fullAddress": "Clayton, 3168, Australia", "departmentId": "107993290"}, {"id": "60026553", "name": "Department of Statistics, University of Melbourne, Parkville, 3052, Australia", "fullName": "Department of Statistics, University of Melbourne", "reference": "b", "fullAddress": "Parkville, 3052, Australia", "departmentId": "113762400"}]
360
20,970
Mixed input-output optimization for time varying Itô systems with state-dependent noise
Dynamics of Continuous, Discrete and Impulsive Systems Series B: Application and Algorithm
Consider a system described by a controlled Itô equation with state-dependent white noise having two inputs and one output. One of the inputs is the control and the second one is a disturbance. We associate to each stabilizing and γ-attenuating control law, a parametrized by γ average quadratic cost, involving the disturbance input and the corresponding output. The optimum is obtained by using a specific minimality property of the global stabilizing solution to a game theoretic Riccati equation of stochastic control.
["Dragan V.", "Morozan T."]
["7006321608", "6701674541"]
1,997
56
[]
null
Article
English
[{"id": "60002823", "name": "Institute of Mathematics, Romanian Academy, RO-70700, Bucharest, P.O.BOX 1-764, Romania", "fullName": "Institute of Mathematics, Romanian Academy", "reference": "a", "fullAddress": "RO-70700, Bucharest, P.O.BOX 1-764, Romania", "departmentId": null}]
361
21,026
Numerical simulation of decaying turbulence in an adaptive wavelet basis
Applied and Computational Harmonic Analysis
The present note is concerned with the numerical simulation of two-dimensional homogeneous decaying turbulence. We employ a Galerkin-type discretization in an adaptive basis of orthogonal wavelets. Therewith the solution is represented by means of a reduced basis being adapted at each time step. This is one of the first times that wavelet decomposition of a turbulent flow field has been used not only for a posteriori analysis but directly for the computation of the flow in a reduced basis. A classical Fourier method furnishes a suitable reference solution.
["Fröhlich J.", "Schneider K."]
["7101928988", "7402471252"]
1,996
29
[]
10.1006/acha.1996.0033
Article
English
[{"id": "60032824", "name": "Konrad-Zuse-Zentrum, 10711 Berlin, Heilbronner Strasse 10, Germany", "fullName": "Konrad-Zuse-Zentrum", "reference": "a", "fullAddress": "10711 Berlin, Heilbronner Strasse 10, Germany", "departmentId": null}, {"id": "60029428", "name": "Institut für Hydromechanik, Universität Karlsruhe, 76128 Karlsruhe, Kaiserstrasse 12, Germany", "fullName": "Institut für Hydromechanik, Universität Karlsruhe", "reference": "b", "fullAddress": "76128 Karlsruhe, Kaiserstrasse 12, Germany", "departmentId": "104488724"}, {"id": "60009941", "name": "Fachbereich Chemie, Technische Chemie, Universität Kaiserslautern, 67653 Kaiserslautern, Postfach 3049, Germany", "fullName": "Fachbereich Chemie, Technische Chemie, Universität Kaiserslautern", "reference": "c", "fullAddress": "67653 Kaiserslautern, Postfach 3049, Germany", "departmentId": "103541781"}, {"id": "60029428", "name": "Institut für Chemische Technik, Universität Karlsruhe, 76128 Karlsruhe, Kaiserstrasse 12, Germany", "fullName": "Institut für Chemische Technik, Universität Karlsruhe", "reference": "d", "fullAddress": "76128 Karlsruhe, Kaiserstrasse 12, Germany", "departmentId": "104488672"}]
362
21,062
Anatomical object recognition using deformable geometric models
Image and Vision Computing
This work addresses the problem of identifying specific objects within three-dimensional data sets. In the specific example chosen we are trying to locate part of the brainstem, and associated structures of the upper spinal cord and mesencephalon. and determine its size, shape and orientation. The approach is in two parts: firstly, to use a controlled, deformable model, based on superquadric geometric primitives as an initial estimate and apply genetic algorithms as the technique for solving the complex optimization problem of defining an approximate encompassing envelope within which the object will be found. The second step implements a segmentation technique, based on image features, to refine the tentative object into a more complex, and realistic, shape suitable for subsequent visualization or volumetric measurement. © 1994.
["Delibasis K.", "Undrill P."]
["35495520800", "7003749823"]
1,994
17
["genetic algorithms", "object recognition", "superquadrics"]
10.1016/0262-8856(94)90026-4
Article
English
[{"id": "60015875", "name": "Department of BioMedical Physics and Bioengineering, University of Aberdeen, Aberdeen, AB9 2ZD Scotland, Foresterhill, United Kingdom", "fullName": "Department of BioMedical Physics and Bioengineering, University of Aberdeen", "reference": "a", "fullAddress": "Aberdeen, AB9 2ZD Scotland, Foresterhill, United Kingdom", "departmentId": "103821946"}]
363
21,078
Genetic selection and neural modeling of piecewise-linear classifiers
International Journal of Pattern Recognition and Artificial Intelligence
Piecewise-linear mathematical structures form a convenient and important framework for implementing trainable and adaptive pattern classifiers. Neural networks and genetic algorithms offer additional approaches with important benefits for the design of such classifiers. In this paper we show how neural modeling and genetic selection can be applied to piecewise-linear structures to optimize both the topology and the parameter values of the network forming the classifier. Such a classifier will tend to have a low error rate and high robustness. We describe applications of these techniques to an adaptive detector of abnormal tissue in mammograms and a detector of straight lines and edges in noisy aerial images.
["Sklansky J.", "Vriesenga M."]
["7006255476", "6506980932"]
1,996
6
["Classifiers", "Genetic algorithms", "Neural networks", "Piecewise-linear"]
10.1142/S0218001496000360
Article
English
[{"id": "60007278", "name": "Dept. of Elec. and Comp. Engineering, University of California, Irvine, CA 92697-2625, United States", "fullName": "Dept. of Elec. and Comp. Engineering, University of California", "reference": "a", "fullAddress": "Irvine, CA 92697-2625, United States", "departmentId": "100252760"}]
364
21,128
A simple modification of a domestic microwave oven for improved temperature control
Journal of Chemical Education
null
["Pagnotta M.", "Nolan A.", "Kim L."]
["6602869167", "7006539837", "15076153000"]
1,992
11
[]
10.1021/ed069p599
Article
English
[{"id": "60030162", "name": "Barnard College, Columbia University, New York, NY 10027, United States", "fullName": "Barnard College, Columbia University", "reference": "a", "fullAddress": "New York, NY 10027, United States", "departmentId": null}]
365
21,137
The complexity of number-theoretic constants
Information Processing Letters
We show that Artin's constant and two related number-theoretic quantities can be computed to t bits of precision using t<sup>3+o(1)</sup> bit operations. The factor implied by the symbol o(1) depends on the cost of the underlying arithmetic, but for practical purposes can be taken as log t. As a by-product of this work, we estimate the complexity of computing Bernoulli numbers and evaluating the Riemann zeta function at positive integers. We also give examples of constants that seem hard to compute, such as Brun's twin prime constant and the exact density of primes for which a given base is a primitive root. This last cannot be computed quickly unless factorization of certain RSA moduli is easy. © 1997 Elsevier Science B.V.
["Bach E."]
["7005857954"]
1,997
8
["Artin's constant", "Bernoulli numbers", "Computational complexity", "Twin primes", "Zeta function"]
10.1016/s0020-0190(97)00051-3
Article
English
[{"id": "60032179", "name": "Computer Sciences Department, University of Wisconsin, Madison, WI 53706, United States", "fullName": "Computer Sciences Department, University of Wisconsin", "reference": "a", "fullAddress": "Madison, WI 53706, United States", "departmentId": "112637138"}]
366
21,297
First passage times for a generalized telegrapher's equation
Physica A: Statistical Mechanics and its Applications
All definitions and analyses of the one-dimensional telegrapher's equation assume an underlying translational invariant space. We here generalize this model to allow for non-uniform spatial properties, and derive the form of the backward equation and the associated boundary conditions in the presence of trapping points. We show that moments of the first-passage time till trapping can be calculated in closed form from a formalism based on the backward equation. © 1992.
["Masoliver J.", "Weiss G.H."]
["7004022653", "35480779600"]
1,992
17
[]
10.1016/0378-4371(92)90299-6
Article
English
[{"id": "60001576", "name": "Departement de Fisica Fonamental, Universitat de Barcelona, 08028 Barcelona, Diagonal 647, Spain", "fullName": "Departement de Fisica Fonamental, Universitat de Barcelona", "reference": "a", "fullAddress": "08028 Barcelona, Diagonal 647, Spain", "departmentId": "103129716"}, {"id": "60006577", "name": "Division of Computer Research and Technology, National Institute of Health, Bethesda, MD 20892, United States", "fullName": "Division of Computer Research and Technology, National Institute of Health", "reference": "b", "fullAddress": "Bethesda, MD 20892, United States", "departmentId": "103371701"}]
367
21,312
Spectrum for a solvable Lie algebra of operators
Studia Mathematica
A new concept of spectrum for a solvable Lie algebra of operators is introduced, extending the Taylor spectrum for commuting tuples. This spectrum has the projection property on any Lie subalgebra and, for algebras of compact operators, it may be computed by means of a variant of the classical Ringrose theorem.
["Beltiţǎ D."]
["15047464400"]
1,999
9
[]
10.4064/sm-135-2-163-178
Article
English
[{"id": "60002823", "name": "Institute of Mathematics, Romanian Academy, RO 70700, Bucureşti, P.O. Box 1-764, Romania", "fullName": "Institute of Mathematics, Romanian Academy", "reference": "a", "fullAddress": "RO 70700, Bucureşti, P.O. Box 1-764, Romania", "departmentId": null}]
368
21,340
Optimal Financial Instruments
The Journal of Finance
Debt and equity are developed as optimal financial instruments in a model where cash flows and control rights are allocated to investors endogenously. When investment decisions must be made by a single party, the debtholder's cash flows are fixed in order to provide the equityholder with efficient incentives for investment. Ownership of control may be transferred to the debtholder to attenuate the impact of asymmetric information, concerning the investment opportunity, on the efficiency of the decision making. 1991 The American Finance Association
["ZENDER J.F."]
["6701704164"]
1,991
51
[]
10.1111/j.1540-6261.1991.tb04638.x
Article
English
[]
369
21,367
Application of entropy concept in open-channel flow study
Journal of Hydraulic Engineering
The use of the variational principle to maximize the entropy is illustrated for possible applications in open-channel flow study. The illustrations include those in: (1) Modeling of velocity distribution by probabilistic formulation and entropy maximization; (2) relating the entropy to the parameters of velocity distribution models; (3) relating the entropy to the energy and momentum coefficients; (4) relating the mean velocity given by the Manning's equation to the velocity distribution and the entropy; and (5) relating the entropy to the locations of the mean and maximum velocities in a channel cross section. The “entropy parameter” M and the maximum velocity u<sub>max</sub> are emphasized as important new parameters. Many flow properties can be expressed in terms of M. Knowledge of u<sub>max</sub> is equivalent to knowing the range of flow velocity in a channel cross section, an important statistical parameter, which along with the mean velocity can completely describe the probability-density function of flow velocity and, hence, the velocity distribution and other related flow properties. Such a concept is new to open-channel hydraulics. © ASCE.
["Chiu C.-L."]
["7402303797"]
1,991
104
[]
10.1061/(ASCE)0733-9429(1991)117:5(615)
Article
English
[{"id": "60015543", "name": "Univ. of Pittsburgh, Pittsburgh, PA, 15261, United States", "fullName": "Univ. of Pittsburgh", "reference": "a", "fullAddress": "Pittsburgh, PA, 15261, United States", "departmentId": null}]
370
21,373
A nonparametric measure of independence under a hypothesis of independent components
Statistics and Probability Letters
Asymptotic normality is derived for a nonparametric measure of independence of the components of random two-vectors. This result is obtained without the restrictive assumptions previuosly made on rate of convergence of the bandwidth sequence of the density estimates used. © 1992.
["Rosenblatt M.", "Wahlen B.E."]
["7101714013", "6602596153"]
1,992
19
["density function estimate", "kernel", "Nonparametric", "test of independence"]
10.1016/0167-7152(92)90197-D
Article
English
[{"id": "60030612", "name": "Department of Mathematics, University of California, San Diego, La Jolla, CA, United States", "fullName": "Department of Mathematics, University of California, San Diego", "reference": "a", "fullAddress": "La Jolla, CA, United States", "departmentId": "104547911"}, {"id": "100325007", "name": "RDT, E Division, Naval Command, San Diego, CA, United States", "fullName": "RDT, E Division, Naval Command", "reference": "b", "fullAddress": "San Diego, CA, United States", "departmentId": "105791628"}]
371
21,402
The quaternionic Dirac Lagrangian
Modern Physics Letters A
We discuss the use of the variational principle within quaternionic quantum mechanics. This is nontrivial because of the noncommutative nature of quaternions. We derive the Dirac-Lagrangian density corresponding to the two-component Dirac equation. This Lagrangian is complex projected as anticipated in previous articles and this feature is necessary even for a classical real Lagrangian.
["De Leo S.", "Rotelli P."]
["7006084297", "6603145680"]
1,996
32
[]
10.1142/S0217732396000400
Article
English
[{"id": "60114718", "name": "Dipartimento di Fisica, Instituto di Fisica Nucleare, Sezione di Lecce, Lecce, 73100, Italy", "fullName": "Dipartimento di Fisica, Instituto di Fisica Nucleare, Sezione di Lecce", "reference": "a", "fullAddress": "Lecce, 73100, Italy", "departmentId": "122206799"}]
372
21,496
The entropy gap and the time asymmetry
Modern Physics Letters A
The universe time asymmetry is essentially produced by its low-entropy unstable initial state. Using quantitative arguments P. Davies<sup>2</sup> has demonstrated that the universe expansion may produce a decreasing of entropy and, therefore, this fact explains its low-entropy states. This idea is implemented in a qualitative way in a simple homogeneous model. A rough coincidence with observational data is found.
["Aquilano R.", "Castagnino M."]
["6701472179", "7006356768"]
1,996
7
[]
10.1142/S021773239600076X
Article
English
[{"id": "60018002", "name": "Inst. de Física de Rosario, 2000, Rosario, Av. Pellegrini 250, Argentina", "fullName": "Inst. de Física de Rosario", "reference": "a", "fullAddress": "2000, Rosario, Av. Pellegrini 250, Argentina", "departmentId": null}, {"id": "60020179", "name": "Inst. Astronomia Fis. Espacio, 1428, Buenos Aires, Casilla de Correos 67, Argentina", "fullName": "Inst. Astronomia Fis. Espacio", "reference": "b", "fullAddress": "1428, Buenos Aires, Casilla de Correos 67, Argentina", "departmentId": null}]
373
21,547
Bounded rational learning in differential information economies: Core and value
Journal of Mathematical Economics
We apply the private core and the private value to a dynamic economy and study the evolution of private core and private value allocations as individuals acquire information (learn) through time. In particular, a realized agreement in each period generates information that changes the underlying information structure in the economy. Since the private core (value) depends on the distribution of information across individuals, when agents learn some new information a realized agreement may no longer be in the private core (value) for the new information structure that arises. We define a 'limit full information' economy and address the following issues; (i) Given a sequence x<sup>t</sup> of approximate private core (value) allocations in each period, there is a subsequence that converges to a private core (value) x<sup>*</sup> allocation for the limit full information economy. (ii) Private core (value) allocations x<sup>*</sup> in the limit full information economy, can be approximated by a sequence x<sub>e</sub><sup>t</sup> of approximate private core (value) allocations in each time period. The approximate notions we consider can be viewed as the errors that agents make due to bounded rationality.
["Koutsougeras L.", "Yannelis N.C."]
["6505978605", "6701669993"]
1,999
8
["Approximate notions", "Dynamic economy", "Private core", "Private value allocations", "Value allocations"]
10.1016/S0304-4068(97)00057-8
Article
English
[{"id": "60000745", "name": "Department of Economics, Univ. Illinois at Urbana-Champaign, Champaign, IL 61820, United States", "fullName": "Department of Economics, Univ. Illinois at Urbana-Champaign", "reference": "a", "fullAddress": "Champaign, IL 61820, United States", "departmentId": "100275823"}, {"id": "60000745", "name": "University of Illinois, Department of Economics, Champaign, IL 61820, 1206 South Sixth Street, United States", "fullName": "University of Illinois, Department of Economics", "reference": "b", "fullAddress": "Champaign, IL 61820, 1206 South Sixth Street, United States", "departmentId": "100275823"}]
374
21,560
Characterization of solvent clusters in a supercritical Lennard-Jones fluid
Journal of Chemical Physics
We have developed a new methodology for characterizing the solvent cluster structures which occur in a pure supercritical fluid in its compressible regime. This methodology takes advantage of the time scale separation which exists between collective-cluster and individual-solvent-atom motions in order to classify atoms according to their "instantaneous" local environments. The resultant picture is of a fluid having density inhomogeneities on a mesoscopic length scale - i.e., clusters and cavities. Calculation of partial radial distribution functions shows that atoms residing in different density domains have very different equilibrium structural properties, information which is not available from the usual total radial distribution function. For example, for a 2-dimensional Lennard-Jones fluid at a reduced temperature T<sub>r</sub> = 1.06 the nearest neighbor coordination number in a high density domain is 4.2, whereas in a low density domain it is only 1.0. We have also found that, for such clustering fluids that in a finite volume system there is an ensemble independent [within terms of (1/N)], nonstructural long-range correlation which arises from an excluded volume effect. This long range correlation enables us to determine the average domain size, volume fraction and density for both the high and low density domains. © 1996 American Institute of Physics.
["Martinez H.L.", "Ravi R.", "Tucker S.C."]
["56761577100", "7102356024", "57195387130"]
1,996
40
[]
10.1063/1.470762
Article
English
[{"id": "60014439", "name": "Department of Chemistry, University of California, Davis, CA 95616, United States", "fullName": "Department of Chemistry, University of California", "reference": "a", "fullAddress": "Davis, CA 95616, United States", "departmentId": "112836098"}]
375
21,613
String representation of field correlators in the Dual Abelian Higgs Model
European Physical Journal C
By making use of the path integral duality transformation, we derive the string representation for the partition function of an extended Dual Abelian Higgs Model containing gauge fields of external currents of electrically charged particles. By the same method, we obtain the corresponding representations for the generating functionals of gauge field and monopole current correlators. In the case of bilocal correlators, the obtained results are found to be in agreement with the dual Meissner scenario of confinement and the Stochastic Model of the QCD vacuum.
["Antonov D.", "Ebert D."]
["7007168104", "7102742970"]
1,999
28
[]
10.1007/s100529901075
Article
English
[{"id": "60000762", "name": "Institut für Physik, Humboldt-Universität zu Berlin, D-10115 Berlin, Invalidenstrasse 110, Germany", "fullName": "Institut für Physik, Humboldt-Universität zu Berlin", "reference": "a", "fullAddress": "D-10115 Berlin, Invalidenstrasse 110, Germany", "departmentId": "112667723"}, {"id": "60018710", "name": "Inst. of Theor. and Exp. Physics, 117 218 Moscow, B. Cheremushkinskaya 25, Russian Federation", "fullName": "Inst. of Theor. and Exp. Physics", "reference": "b", "fullAddress": "117 218 Moscow, B. Cheremushkinskaya 25, Russian Federation", "departmentId": null}]
376
21,733
A comment on the inversion of gas transport properties
The Journal of Chemical Physics
The Eikonal approximation to the principal part of the gas viscosity coefficient is shown to be exactly invertible for certain classes of potentials. The supplementary conditions that must be added to make it so for more general classes are similar to those introduced in all successful heuristic methods of deducing molecular interactions from gas transport properties. © 1980 American Institute of Physics.
["Monchick L."]
["6602257645"]
1,980
9
[]
10.1063/1.440465
Review
English
[{"id": "60005248", "name": "Johns Hopkins University, Applied Physics Laboratory, Laurel, MD 20810, United States", "fullName": "Johns Hopkins University, Applied Physics Laboratory", "reference": "a", "fullAddress": "Laurel, MD 20810, United States", "departmentId": "113095594"}]
377
21,838
Gravitating 't hooft monopoles
Physical Review D
The 't Hooft magnetic monopole solution of the SO(3) Higgs model generates, when coupled to gravity, a geometry which for large distances is of the Reissner-Nordström form corresponding to a (magnetic) charge 1e. The Higgs fields can contribute a cosmological term. In the absence of scalar fields the corresponding Wu-Yang solution of the SO(3) gauge theory still generates the Reissner-Nordström geometry. © 1975 The American Physical Society.
["Cho Y.M.", "Freund P.G.O."]
["7404469843", "7006468322"]
1,975
67
[]
10.1103/PhysRevD.12.1588
Article
English
[{"id": "60029278", "name": "Enrico Fermi Institute, Department of Physics, University of Chicago, Chicago, IL 60637, United States", "fullName": "Enrico Fermi Institute, Department of Physics, University of Chicago", "reference": "a", "fullAddress": "Chicago, IL 60637, United States", "departmentId": "122926046"}]
378
21,846
Dividend yields and stock returns: Implications of abnormal January returns
Journal of Financial Economics
This study examines the empirical relation between stock returns and (long-run) dividend yields. The findings show that much of the phenomenon is due to a nonlinear relation between dividend yields and returns in January. Regression coefficients on dividend yields, which some models predict should be non-zero due to differential taxation of dividends and capital gains, exhibit a significant January seasonal, even when controlling for size. This finding is significant since there are no provisions in the after-tax asset pricing models that predict the tax differential is more important in January than in other months. © 1985.
["Keim D.B."]
["7006811293"]
1,985
80
[]
10.1016/0304-405X(85)90009-1
Article
English
[{"id": "60006297", "name": "University of Pennsylvania, Philadelphia, PA 19104, United States", "fullName": "University of Pennsylvania", "reference": "a", "fullAddress": "Philadelphia, PA 19104, United States", "departmentId": null}]
379
21,931
The Joint Estimation of Signal and Noise from the Sum Envelope
IEEE Transactions on Information Theory
The separate estimation of carrier strength and of narrowband additive noise strength from N envelope samples is considered. The mathematical problem is one of the joint estimation of the two parameters in the Rice probability-density function. The estimation is useful, for example, in the radar analysis of targets containing both specular and distributed components. In the mathematical analysis, theoretical Cramér-Rao lower bounds on the standard deviation in unbiased estimation are first determined. Estimation procedures based upon the method of maximum likelihood and two simple methods of moments are then developed. An error analysis for each procedure is performed by Monte Carlo simulation. For the purpose of comparison, two direct averaging methods are also analyzed. Results are extended to the case where an additional noise is also present, but with known strength. It is also shown that the time average of a slowly-varying carrier strength can be estimated despite the presence of noise. © 1967, IEEE. All rights reserved.
["Benedict T.R.", "Soong T.T."]
["36847998000", "7102415144"]
1,967
0
[]
10.1109/TIT.1967.1054037
Article
English
[{"id": "60030155", "name": "Cornell Aeronautical Lab. Inc., Buffalo, N. Y. 14221, United States", "fullName": "Cornell Aeronautical Lab. Inc.", "reference": "a", "fullAddress": "Buffalo, N. Y. 14221, United States", "departmentId": "106905736"}, {"id": "60030155", "name": "Cornell Aeronautical Lab. Inc., State University of New York at Buffalo, N. Y., United States", "fullName": "Cornell Aeronautical Lab. Inc., State University of New York at Buffalo", "reference": "b", "fullAddress": "N. Y., United States", "departmentId": "115474269"}]
380
21,937
Critical exponents near the XY Lifshitz point
Journal of Physics C: Solid State Physics
An axial next nearest-neighbour XY model with competing interactions is studied by the Monte Carlo method above the transition temperature near the uniaxial Lifshitz point. The critical exponents are gamma =1.5+or-0.1 and beta =0.2+or-0.02.
["Selke W."]
["7004319277"]
1,980
14
[]
10.1088/0022-3719/13/11/004
Article
English
[{"id": "60033241", "name": "Fachrichtung Theoretische Physik, Universitat des Saarlandes, 6600 Saarbriicken, Germany", "fullName": "Fachrichtung Theoretische Physik, Universitat des Saarlandes", "reference": "a", "fullAddress": "6600 Saarbriicken, Germany", "departmentId": "104687927"}]
381
21,971
Principles of performance
Psychological Review
The author extends with modifications his earlier cognitive learning position so as to more clearly delineate the performance principles of the system. He begins by setting forth his basic assumptions concerning independent and intervening variables, and then relating them to what is called performances in the behavior space. The analysis is applied to bar-pressing, escape behavior, response combining, and vicarious trial and error. 25 references. (PsycINFO Database Record (c) 2006 APA, all rights reserved). © 1955 American Psychological Association.
["Tolman E.C."]
["25956843800"]
1,955
61
["PERFORMANCE, COGNITIVE LEARNING THEORY LEARNING, COGNITIVE THEORY, PERFORMANCE PRINCIPLES THEORY & SYSTEMS"]
10.1037/h0049079
Article
English
[{"id": "60025038", "name": "U. California, Berkeley, United States", "fullName": "U. California", "reference": "a", "fullAddress": "Berkeley, United States", "departmentId": null}]
382
22,049
Noncontingent reinforcement: An inappropriate description of time-based schedules that reduce behavior
Journal of Applied Behavior Analysis
null
["Poling A.", "Normand M."]
["7006724682", "16043378500"]
1,999
18
[]
10.1901/jaba.1999.32-237
Article
English
[{"id": "60000879", "name": "Department of Psychology, Western Michigan University, Kalamazoo, MI 49008, United States", "fullName": "Department of Psychology, Western Michigan University", "reference": "a", "fullAddress": "Kalamazoo, MI 49008, United States", "departmentId": "112822880"}]
383
22,082
Permutation Polynomials: A Matrix Analogue of Schur′s Conjecture and a Survey of Recent Results
Finite Fields and Their Applications
We consider a matrix analogue of Schur′s conjecture concerning permutation polynomials induced by polynomials with integral coefficients. For any fixed integer m ≥ 1 we consider polynomials with integral coefficients which induce permutations on the ring of all m × m matrices over the finite field F<sub>p</sub> for infinitely many primes p. We also provide a survey of recent results concerning permutation polynomials over finite fields. © 1995 Academic Press. All rights reserved.
["Mullen G.L."]
["7103303456"]
1,995
8
[]
10.1006/ffta.1995.1020
Article
English
[{"id": "60001439", "name": "Department of Mathematics, The Pennsylvania State University, University Park, PA 16802, United States", "fullName": "Department of Mathematics, The Pennsylvania State University", "reference": "a", "fullAddress": "University Park, PA 16802, United States", "departmentId": "112035055"}]
384
22,357
Bounded controls in distributed-parameter systems
Journal of Applied Mathematics and Mechanics
Control systems with distributed parameters, described by partial differential equations, solvable with respect to the first or second time derivative, are considered. The controls on the right-hand sides of the equations are assumed to be bounded in absolute magnitude. A control method is proposed which brings the controlled system into the null state in a finite time. The proposed approach is based on decomposing the system and applying the time-optimal control for each mode of motion obtained by Fourier-expanding the solution. Estimates for the duration of the control process are obtained. Sufficient conditions for the problem to be solvable are given. Examples are presented. © 1993.
["Chernous'ko F.L."]
["7005396393"]
1,992
29
[]
10.1016/0021-8928(92)90057-F
Article
English
[{"id": null, "name": "MoscowUSSR", "fullName": null, "reference": "a", "fullAddress": null, "departmentId": null}]
385
22,420
Multiperiod security markets with differential information. Martingales and resolution times
Journal of Mathematical Economics
We model multiperiod securities markets with differential information. A price system that admits no free lunches is related to martingales when agents have rational expectations. We introduce the concept of resolution time, and show that a better informed agent and a less informed agent must agree on the resolution times of commonly marketed events if they have rational expectations and if there are no free lunches. It then follows that if all elementary events are marketed for a less informed agent then any price system that admits no free lunches to a better informed agent must eliminate any private information asymmetry between the two. We provide an example of a dynamically fully revealing price system that is arbitrage free and yields elementarily complete markets. © 1986.
["Duffie D.", "Huang C.-f."]
["6701468567", "23113692400"]
1,986
61
[]
10.1016/0304-4068(86)90017-0
Article
English
[{"id": "60012708", "name": "Stanford University, Stanford, CA 94305, United States", "fullName": "Stanford University", "reference": "a", "fullAddress": "Stanford, CA 94305, United States", "departmentId": null}, {"id": "60022195", "name": "Massachusetts Institute of Technology, Cambridge, MA 02139, United States", "fullName": "Massachusetts Institute of Technology", "reference": "b", "fullAddress": "Cambridge, MA 02139, United States", "departmentId": null}]
386
22,439
Evaluation of an approximate renormalisation scheme for area-preserving maps
Physics Letters A
We test the predictions of an approximate renormalisation scheme for the scaling exponents and critical residues of critical circles with rotation number of the form [a<sub>0</sub>, a<sub>1</sub>, a<sub>2</sub>, ..., (m)<sub>∞</sub>] for area-preserving maps. These corresponds to fixed points of renormalisation operators N<sub>m</sub>, mεN. We find good agreement with numerical experiments for the eigenvalues for small m, with gradual divergence as m increases. The predictions for the residues on the other hand require a linear transformation before they agree with numerical experiment. © 1989.
["Mackay R.S.", "Stark J."]
["15742541200", "57203027563"]
1,989
8
[]
10.1016/0375-9601(89)90874-8
Article
English
[{"id": "60022020", "name": "Nonlinear Systems Laboratory, Mathematics Institute, University of Warwick, Coventry, CV4 7AL, United Kingdom", "fullName": "Nonlinear Systems Laboratory, Mathematics Institute, University of Warwick", "reference": "a", "fullAddress": "Coventry, CV4 7AL, United Kingdom", "departmentId": "100296461"}]
387
22,507
A unipotent support for irreducible representations
Advances in Mathematics
null
["Lusztic G."]
["7006533300"]
1,992
56
[]
10.1016/0001-8708(92)90035-J
Article
English
[{"id": "60022195", "name": "Department of Mathematics, Massachussets Institute of Technology, Cambridge, MA 02139, United States", "fullName": "Department of Mathematics, Massachussets Institute of Technology", "reference": "a", "fullAddress": "Cambridge, MA 02139, United States", "departmentId": "100247158"}]
388
22,523
Multiple equilibria for unlinked and weakly-linked cellular structural forms
International Journal of Solids and Structures
It is demonstrated that a structural form comprising n unlinked or weakly-linked separate identical cells can, by its nature, suffer an explosion of unstable post-buckling states, associated with an n-fold compound critical point. Examples of rigid-link models, and atomic matrix cellular models employing a Lennard-Jones potential, are included. Attention is paid to criteria for the appearance of homogeneous, localized but distributed, and thoroughly-localized solutions. For the atomic models, generalized coordinates that exploit local and global symmetries of unlinked cells are introduced in a block diagonalization context, to clarify the bifurcation structure. A discretized Lagrangian formulation is introduced to untangle the paths for weakly-linked cells. © 1992.
["Kiyohiro I.", "Providência P.", "Hunt G.W."]
["7404891398", "24313141800", "7202673972"]
1,993
8
[]
10.1016/0020-7683(93)90173-5
Article
English
[{"id": "60018352", "name": "Department of Civil Engineering, Nagaoka University of Technology, Nagaoka, Niigata, 940-21, Japan", "fullName": "Department of Civil Engineering, Nagaoka University of Technology", "reference": "a", "fullAddress": "Nagaoka, Niigata, 940-21, Japan", "departmentId": "100263870"}, {"id": "60020985", "name": "Department of Civil Engineering, Universidade de Coimbra, Portugal", "fullName": "Department of Civil Engineering, Universidade de Coimbra", "reference": "b", "fullAddress": "Portugal", "departmentId": null}, {"id": "60015150", "name": "Department of Civil Engineering, Imperial College of Science, Technology and Medicine, London, SW7 2BU, United Kingdom", "fullName": "Department of Civil Engineering, Imperial College of Science, Technology and Medicine", "reference": "c", "fullAddress": "London, SW7 2BU, United Kingdom", "departmentId": "103779505"}]
389
22,533
The normal distribution and repeated games
International Journal of Game Theory
For a reperated zero-sum two-person game with incomplete information discussed by Zamir, it is proved here that {Mathematical expression} where φ (p) is the normal density function evaluated at its p-quantile (i.e. {Mathematical expression} where {Mathematical expression}. Here for 0≤p≤1, (p, 1 -p) is the a priori probability distribution on two states of nature, the actual state of nature is known to the maximizer but not to the minimizer. v<sub>n</sub>(p) is the minimax value of the game with n stages. © 1976 Physica-Verlag.
["Mertens J.-F.", "Zamir S."]
["7102712522", "7004035576"]
1,976
18
[]
10.1007/BF01761601
Article
English
[{"id": "60000874", "name": "Universitc Catholique de Louvain, Louvain, Belgium", "fullName": "Universitc Catholique de Louvain", "reference": "a", "fullAddress": "Louvain, Belgium", "departmentId": null}, {"id": "60007903", "name": "The Hebrew University of Jerusalem, Jerusalem, Israel", "fullName": "The Hebrew University of Jerusalem", "reference": "b", "fullAddress": "Jerusalem, Israel", "departmentId": null}]
390
22,596
Restart row update ABS methods for solving systems of nonlinear equations
Computing
In this paper, we apply a restart scheme, in which the derivatives of functions are evaluated cyclically, to the row update ABS methods for solving systems of nonlinear equations. We prove that the restart row update ABS methods are superlinearly convergent. Choices of the optimal restart steps to attain their maximal efficiencies for different dimensions are also discussed. Numerical experiments show the promising potential of the new methods in some respects on tested problems. © 1993 Springer-Verlag.
["Huang Z."]
["55494523800"]
1,993
2
["AMS Subject Classification: 65H10", "efficiency", "Nonlinear ABS methods", "restart row update ABS methods", "row update ABS methods", "superlinear convergence"]
10.1007/BF02243813
Article
English
[{"id": "60009860", "name": "Department of Statistics and Operations Research, Fudan University, Shanghai, China", "fullName": "Department of Statistics and Operations Research, Fudan University", "reference": "a", "fullAddress": "Shanghai, China", "departmentId": "103537142"}]
391
22,653
A generalized neuronal activation function derived from ion-channel characteristics
Network: Computation in Neural Systems
An abstract model neuron, simple enough to be used in analytical studies of neural networks, is defined. It incorporates neuronal adaptation, i.e. the coupling between neuronal activity and excitability, which can control the complexity of neural network dynamics. A generalized neuronal activation function is defined as the output activity, i.e. The firing rate of action potentials, as a function of an input and an excitability variable. For a biological neuron, the intracellular concentration of Ca ions is shown to be a useful excitability variable. The principal features of the generalized activation function are derived by means of a multicompartment model neuron with ionic currents described by Hodgkin-Huxley-type equations. As a relevant neuron type for investigations of cortical associative memory, a neocortical pyramidal cell of the regularly-spiking type is selected. An approximate analytical consideration suggests a simple form of independent variable of the generalized activation function. The complete numerical treatment verifies this form and displays a threshold character of the activation function. The derivation thereby pmvides an interpretation of dynamic threshold models of neuronal adaptation in terms of ionic mechanism. The threshold with respect to the input has well-defined dynamics directly given by the intracellular Ca dynamics. A comparison of the response of the Hodgkin-Huxley-type and reduced-model neumns to a varying input variable indicates that the reduced model is a usefui approximation even for the detailed behaviour of the firing rate. The generalized activation function also accounts for the dependence on neuromodnlation via an adaptability parameter. An absmt model neural network of units thus defined has the capacity to describe complex network dynamics and the simplicity to allow elucidation of mechanisms and applications to large-scale systems. © 1995 Informa UK Ltd All rights reserved: reproduction in whole or part not permitted.
["Cartling B."]
["6701366379"]
1,995
11
[]
10.1088/0954-898X_6_3_005
Article
English
[{"id": "60002014", "name": "Department of Theoretical Physics, The Royal Institute of Technology, S-100 44, Stockholm, Sweden", "fullName": "Department of Theoretical Physics, The Royal Institute of Technology", "reference": "a", "fullAddress": "S-100 44, Stockholm, Sweden", "departmentId": "110908102"}]
392
22,678
The intertemporal dimension of neoclassical production theory
Journal of Economic Surveys
The aim of this survey paper is to provide a guide to the literature on optimal dynamic factor demands to the non-specialist reader interested in applied work. We start with the distinction between variable and quasi-fixed factors of production and use these to characterize the firm's temporary equilibrium. We then review the optimal intertemporal behaviour of the firm, using the notion of adjustment costs as a means to solve the firm's optimization problem. This process gives rise to a system of interrelated dynamic factor demands in a flexible accelerator format. Theoretical difficulties and empirical limitations of this model are discussed. This fact leads us to review the theory of intertemporal duality. We next analyze the issue of expectations in this class of dynamic models. A section reviewing the empirical work on dynamic factor demands follows, after which we offer some concluding remarks.
["Galeotti M."]
["16419724600"]
1,996
11
["Dynamic factor demands", "Flexible accelerator", "Intertemporal duality", "Intertemporal firm behaviour"]
10.1111/j.1467-6419.1996.tb00019.x
Article
English
[{"id": "60005254", "name": "Univ. degli Studi di Bergamo", "fullName": "Univ. degli Studi di Bergamo", "reference": "a", "fullAddress": null, "departmentId": null}]
393
22,725
On the discharge of static electricity from an insulator surface
Journal of Physics E: Scientific Instruments
A partly new and sensitive technique is described for measuring the net charge on a small object. The electrostatic energy of a charged circular insulator plate is calculated. The technique is then used for energy measurements on discharges from insulator surfaces. Simultaneously with these measurements the discharges are photographed. A powder technique is also used for studying the surface discharges.
["Fredholm O.", "Lovstrand K.G."]
["23001203500", "6505969000"]
1,972
14
[]
10.1088/0022-3735/5/11/011
Article
English
[{"id": "60003858", "name": "Uppsala Univ., Sweden", "fullName": "Uppsala Univ.", "reference": "a", "fullAddress": "Sweden", "departmentId": null}]
394
22,768
Integrated product concepts development and evaluation
International Journal of Computer Integrated Manufacturing
The traditional method of developing products suffers from a lack of information of the later stages of the development process when the early decisions are made. This would probably lead to staggering losses in lead time and project resources. This problem could be avoided if the development team makes the early design decisions with sufficient considerations on other aspects such as manufacturing processes, tool making, etc. This paper aims to present the authors' recent research results in the establishment of a decision making framework at the product concept development process. According to the framework and using the knowledge based system methodology, an integrated product concepts development and evaluation system has been developed for plastic injection moulding part. The system is capable of generating the material selection, injection mould design features, injection mould making process plan, production moulding plan, estimated mould making lead time, and cost estimates of injection mould and production moulding at the product concept stage. © 1999 Taylor & Francis Ltd.
["Chin K.-S.", "Wong T.N."]
["7202995439", "55301015400"]
1,999
9
[]
10.1080/095119299130416
Article
English
[{"id": "60013983", "name": "Department of Manufacturing Engineering and Engineering Management, City University of Hong Kong, Tat Chee Avenue, Hong Kong", "fullName": "Department of Manufacturing Engineering and Engineering Management, City University of Hong Kong", "reference": "a", "fullAddress": "Tat Chee Avenue, Hong Kong", "departmentId": "103724838"}, {"id": null, "name": "Department of Industrial and Manufacturing System Engineering, Unive rsity of Hong Kong, Pokfulam, Taiwan", "fullName": "Department of Industrial and Manufacturing System Engineering, Unive rsity of Hong Kong", "reference": "b", "fullAddress": "Pokfulam, Taiwan", "departmentId": null}]
395
22,804
The Ising model, the Yang-Lee edge singularity, and 2D quantum gravity
Physics Letters B
We consider one-and two-matrix models recently used to define nonperturbative 2D quantum gravity. We prove the equivalence of the m = 3 multicritical one-matrix model and the Yang-Lee edge singularity coupled to 2D quantum gravity. We also derive formulae for the correlation functions for the Yang-Lee edge singularity and for the Ising model in their summed over topologies formulations. © 1990.
["Crnković C.", "Ginsparg P.", "Moore G."]
["6602553658", "6602339160", "7403282900"]
1,990
87
[]
10.1016/0370-2693(90)91428-E
Article
English
[{"id": "60005455", "name": "Department of Physics, Yale University, New Haven, CT 06511-8167, United States", "fullName": "Department of Physics, Yale University", "reference": "a", "fullAddress": "New Haven, CT 06511-8167, United States", "departmentId": "100267088"}, {"id": "60009982", "name": "Lyman Laboratory of Physics, Harvard University, Cambridge, MA 02138, United States", "fullName": "Lyman Laboratory of Physics, Harvard University", "reference": "b", "fullAddress": "Cambridge, MA 02138, United States", "departmentId": null}]
396
22,839
Invariant manifolds of singularly perturbed ordinary differential equations
ZAMP Zeitschrift für angewandte Mathematik und Physik
For singularly perturbed systems of ODE's satisfying a certain stability assumption the existence of an asymptotically stable (unstable) invariant manifold is proved. This invariant manifold is ε-close to the so-called reduced manifold of such a system. As an illustrative example a 3-dimensional autonomous system describing a model in biochemistry is considered. © 1985 Birkhäuser-Verlag.
["Nipp K."]
["16430018000"]
1,985
16
[]
10.1007/BF00945464
Article
English
[{"id": "60025858", "name": "Seminar für Angewandte Mathematik, ETH, Zürich, CH-8092, Switzerland", "fullName": "Seminar für Angewandte Mathematik, ETH", "reference": "a", "fullAddress": "Zürich, CH-8092, Switzerland", "departmentId": null}]
397
22,969
Empirical NMR chemical shift correlations for methine protons
Journal of Chemical Education
null
["Friedrich E.C.", "Runkle K.G."]
["15079102900", "15129943900"]
1,986
10
[]
10.1021/ed063p127
Article
English
[{"id": "60014439", "name": "University of California, Davis, CA 95616, United States", "fullName": "University of California", "reference": "a", "fullAddress": "Davis, CA 95616, United States", "departmentId": null}]
398
22,982
Synthesis of boron stabilised carbanions
Journal of Organometallic Chemistry
Carbanions stabilised by an adjacent boron atom have been made in good yields by proton abstraction from the air stable boranes R<sub>2</sub>BCHR′R″ (R = mesityl, R′, R″ = H, methyl or phenyl). © 1980.
["Wilson J.W."]
["55725882700"]
1,980
35
[]
10.1016/S0022-328X(00)82409-2
Article
English
[{"id": "60025525", "name": "Fakultät der Chemie, Universität Konstanz, D-7750 Konstanz, Postfach 5560, Germany", "fullName": "Fakultät der Chemie, Universität Konstanz", "reference": "a", "fullAddress": "D-7750 Konstanz, Postfach 5560, Germany", "departmentId": "104293054"}]
399
23,055
Posterior inference on the degrees of freedom parameter in multivariate-t regression models
Economics Letters
This paper considers the nonlinear regression model with errors that follow the multivariate Student-t distribution with ν degrees of freedom. We specify general conditions on the overall prior structure under which the prior of ν is not updated by the sample information, and provide an example in which learning about ν is not precluded. © 1991.
["Chib S.", "Osiewalski J.", "Steel M.F.J."]
["6603689321", "6701653557", "7102197241"]
1,991
16
[]
10.1016/0165-1765(91)90076-W
Article
English
[{"id": "60006173", "name": "University of Missouri, Columbia, MO 65211, United States", "fullName": "University of Missouri", "reference": "a", "fullAddress": "Columbia, MO 65211, United States", "departmentId": null}, {"id": "60015632", "name": "Academy of Economics, Kraków, Poland", "fullName": "Academy of Economics", "reference": "b", "fullAddress": "Kraków, Poland", "departmentId": null}, {"id": "60017145", "name": "Tilburg University, 5000 LE Tilburg, Netherlands", "fullName": "Tilburg University", "reference": "c", "fullAddress": "5000 LE Tilburg, Netherlands", "departmentId": null}]
400
23,168
In Situ Characterization of Laser Diodes from Wide-Band Electrical Noise Measurements
Journal of Lightwave Technology
The wide-band electrical noise characteristics of 0.8-, 1.3-, and l.5-μm laser diodes have been studied theoretically and for the first time also experimentally. The electrical noise is related to the optical intensity noise behavior, and can therefore be used for in situ measurements and characterization of laser diodes. Since the measurements are performed without any optical components, undesired optical feedback is eliminated. The results show that several important laser parameters and characteristics can be extracted from purely electrical noise measurements. Among these are the relaxation frequency, the threshold current, the emission linewidth, optical feedback properties, and longitudinal mode hopping behavior. Good agreement between the noise theory and the electrical noise measurements has been obtained. An expression for obtaining both the spectral linewidth and lineshape from electrical noise measurements is also derived. © 1986 IEEE
["Andrekson A.", "Andersson P.", "Alping A.", "Eng S.T."]
["56838367600", "23020653800", "6701408867", "7006280657"]
1,986
21
[]
10.1109/JLT.1986.1074803
Article
English
[{"id": "60000990", "name": "Department of Electrical Measurements, Chalmers University of Technology, 412 96 Gothenburg, Sweden", "fullName": "Department of Electrical Measurements, Chalmers University of Technology", "reference": "a", "fullAddress": "412 96 Gothenburg, Sweden", "departmentId": "103097565"}]