ppxscal/embedding_network huggingface dataset:
Proceedings of the 2nd international conference on Ubiquitous information management and communication
Venue: Conference On Ubiquitous Information Management And Communication (2008)

It may be said that modern information technology rests on three technology pillars: semiconductor technology, communications technology, and information processing software technology. During the past two decades there have been tremendous advances in all three pillars and their unrelenting convergence that have brought us significantly closer to the realization of the long-envisioned dream of an information society in which anyone can access the cumulative knowledge of the mankind inexpensively from anywhere at any time, namely that of a ubiquitous information age. The aim of the Second International Conference on Ubiquitous Information Management and Communication (ICUIMC-2008) is to provide a forum for the exchange of ideas and information, for cultivating opportunities for collaborative research, and for fostering friendship among researchers in key technology hotbeds in the Asia Pacific region engaged in various facets of information management and communications technologies appropriate for ubiquitous computing and application environments. The technical program of ICUIMC-2008 includes 23 invited papers, 63 refereed regular papers, and 23 refereed short papers. The acceptance rate for regular papers was 30%. The number of countries represented in the technical program is 13.
Theoretical bounds on and empirical robustness of score regularization to different similarity measures
Authors: Fernando D. Diaz
Venue: Proceedings of the 31st annual international ACM SIGIR conference on Research and development in information retrieval (2008)

We present theoretical bounds and empirical robustness of score regularization given changes in the similarity measure.
Convergence analysis of the Levenberg-Marquardt method
Authors: Xin-Long Luo, Li-Zhi Liao, Hon Wah Tam
Venue: Optimization Methods Software (2007)

The Levenberg-Marquardt method is a popular method for both optimization problems and equilibrium problems in dynamical systems. In this article, we study the convergence properties of the Levenberg-Marquardt method with the standard matrix update scheme. In our global convergence proof, we relax the condition that update matrices be bounded, and only require that their norms increase at most linearly. Furthermore, we analyze its local convergence for the uniformly convex function. In this case, the Levenberg-Marquardt method has superlinear convergence, and the initial matrix can be chosen arbitrarily for the Broyden-Fletcher-Goldfarb-Shanno (BFGS) formula.
Autonomic nervous function and localization of cerebral activity during lavender aromatic immersion
Authors: Xudong Duan, Manabu Tashiro, Di Wu, Tomoyuki Yambe, Qingtian Wang, Takehisa Sasaki, Kazuaki Kumagai, Yun Luo, Shin-ichi Nitta, Masatoshi Itoh
Venue: Technology and Health Care (2007)

Changes in the autonomic nervous activity can be induced by various sensory and emotional stimuli. The authors examined whether the power spectral analysis of heart rate variability (HRV) could detect changes in autonomic tone following a lavender aroma treatment or not. Healthy young women (n=10, 23&plusmn;3 years old) underwent continuous electrocardiographic (ECG) monitoring before and after (10, 20, 30 minutes) the lavender fragrance stimuli. HRV was expressed by three indices: low (0.04-0.15 Hz) and high (0.15-0.40 Hz) frequency components (nLF and nHF, respectively) as well as LF/HF ratio. Increases in the parasympathetic tone were observed after the lavender fragrance stimulus as seen as increases in the HF component and decreases in the LF/HF. Additional measurement with positron emission tomography (PET) demonstrated the regional metabolic activation in the orbitofrontal, posterior cingulate gyrus, brainstem, thalamus and cerebellum, as well as the reductions in the pre/post-central gyrus and frontal eye field. These results suggested that lavender aromatic treatment induced not only relaxation but also increased arousal level in these subjects.
CoDePA: a conceptual design pattern approach to model behavior for X3D worlds
Authors: Bram Pellens, Olga De Troyer, Frederic Kleinermann
Venue: Proceedings of the 13th international symposium on 3D web technology (2008)

The development of dynamic X3D/VRML virtual worlds is not an easy task. Adding the behavior to a virtual world is most often the bottleneck of the development process, especially when it comes to more complex behavior. This paper describes a tool-supported design approach for creating object behavior in X3D worlds. The approach is based on generative design patterns in combination with a graphical notation. In this approach, behavior can be specified by instantiating patterns and customizing them to a particular context. More complex behavior can be constructed by combining different patterns. Furthermore, the approach allows more experienced designers to specify new behavior patterns and make them available to others in a graphical way and ready to use. An example is used to illustrate the approach.
Machine invention of quantum computing circuits by means of genetic programming
Authors: Lee Spector, Jon Klein
Venue: Artificial Intelligence for Engineering Design, Analysis and Manufacturing (2008)

We demonstrate the use of genetic programming in the automatic invention of quantum computing circuits that solve problems of potential theoretical and practical significance. We outline a developmental genetic programming scheme for such applications; in this scheme the evolved programs, when executed, build quantum circuits and the resulting quantum circuits are then tested for “fitness” using a quantum computer simulator. Using the PushGP genetic programming system and the QGAME quantum computer simulator we demonstrate the invention of a new, better than classical quantum circuit for the two-oracle AND/OR problem.
Topographically discounted Internet infrastructure resources: a panel study and econometric analysis
Authors: Anna Ye Du, Xianjun Geng, Ram D. Gopal, R. Ramesh, Andrew B. Whinston
Venue: Information Technology and Management (2008)

The Internet infrastructure is increasingly utilized for the provision and delivery of a variety of services. The rapid growth and substantial demand fluctuations of the supported services are placing strain on the service providers to effectively manage their infrastructure resources. Capacity Provision Network (CPN) is a market-driven mechanism that enables the service providers to efficiently allocate, share and trade service capabilities. Central to the operation of CPN is the notion of discounted capacities which capture the underlying topology of the Internet. It serves as a practical instrument for service providers to evaluate the utility of capacity services available at remote sites vis-à-vis the capacities available locally and from the content providers. We conducted an Internet based longitudinal field experiment to empirically assess and validate the critical properties of discount factors. Our analysis reveals that discount factors exhibit markedly lower volatility than network delays, and are more stable over seasonal and temporal trend patterns. The results related to size effects suggest that sharing and trade agreements with larger content can be particularly effective. Our finding on the existence of the concavity property points to the ability of intermediation services to enhance the overall gains from resource sharing arrangements.
Towards a LED based on a photonic crystal nanocavity for single photon sources at telecom wavelength
Authors: M. Francardi, A. Gerardino, L. Balet, N. Chauvin, D. Bitauld, C. Zinoni, L. H. Li, B. Alloing, N. Le Thomas, R. Houdré, A. Fiore
Venue: Microelectronic Engineering (2008)

A fundamental step towards achieving an ''on demand'' single photon source would be the possibility of electrical pumping for a single QD and thus the integration of such a device in an opto-electronic circuit. In this work we describe the fabrication process and preliminary results of a Light Emitting Diode (LED) to be integrated with a PhC nanocavity at telecom wavelength. We demonstrate the possibility of an effective electric pumping of the QDs embedded into the membrane by contacting the n-doped and p-doped layers of the thin membrane, which allows the fabrication of a PhC nanocavity on it.
MERIS-FR potential for land use-land cover mapping in Spain
Authors: S. García-Gigorro, F. González-Alonso, S. Merino-de-Miguel, A. Roldán-Zamarrón, J. M. Cuevas
Venue: International Journal of Remote Sensing (2007)

This paper presents preliminary results of updated land use-land cover (LULC) maps for two Spanish provinces using MERIS-FR images, data from the Third National Forest Inventory (NFI3) ground plots, and the European database CORINE Land Cover 2000 (CLC2000). Legend categories were defined using the FAO legend-based European Global Land Cover (GLC2000) product. The applied methodology is based on maximum likelihood supervised classification of MERIS-FR images. The delimitation of training areas was based on the NFI3 ground plots and CLC2000. High overall accuracies were obtained for Navarra (73.67%) and Murcia (73.70%). These preliminary results show that MERIS-FR data allow an operational development of LULC maps/products at medium scales. Results from the comparison between MERIS-based classifications and available thematic maps are also presented.
Least squares approximants on Gauss-Lobatto points: orthogonal polynomials and Moore-Penrose pseudo-inverse
Authors: Alfredo Eisinberg, Giuseppe Fedele
Venue: Proceedings of the 10th WSEAS International Conference on APPLIED MATHEMATICS (2006)

In this paper we resume some results concerned our work about least-squares approximation on Gauss-Lobatto points. We present explicit formulas for discrete orthogonal polynomials and give the three-term recurrence relation to construct such polynomials. We also show that the normal matrix on this set of nodes can be factorized as the sum of two symmetric matrices: a full rank matrix which admits a Cholesky factorization and a 2-rank matrix. Finally we discuss the numerical properties of the proposed formulas.
Modelling of the "GP" Mechnical Thrombectomy Device MTD
Authors: G. Pearce, S. Alyas, N. D. Perkinson, J. H. Patrick
Venue: Proceedings of the Tenth International Conference on Computer Modeling and Simulation (2008)

Presented is a study involving (i) theoretical modelling of the newly invented ‘GP’ Mechanical Thrombectomy Device (MTD) and (ii) laboratory verification of the theoretical modelling. For the latter, the MTD was placed in two positions (i) end mounted on a classic Seldinger catheter and (ii) embedded within the Seldinger catheter. Blood clots from porcine arteries supported in an arterial jig assembly were extracted. The results indicated that clot removal volumes were less with the embedded device and supported the theoretical modelling findings in respect of pressures required to facilitate clot removal.
Numerical simulation of flow behind active vortex generators with direct forcing immersed boundary method
Authors: H. Shan
Venue: International Journal of Computational Fluid Dynamics (2007)

The immersed boundary method with discrete direct forcing approach was combined with a direct numerical simulation (DNS) code to study the time-dependent response of boundary-layer flow over a flat plate to the active vortex generators (AVG) that consist of a pair of deployable circular wing lip type blades driven by a pre-defined duty cycle. The DNS code solves the three-dimensional Navier-Stokes equations for compressible flow in general curvilinear coordinates using a fully implicit LU-SGS method. A fourth-order finite difference scheme is used to compute the spatial derivatives. The underlying curvilinear mesh near the vortex generator is designed properly with a large portion of the immersed boundary intersecting with the grid nodes to reduce the number of near-boundary nodes that require interpolation. The current immersed boundary technique was tested and verified on backward-facing step flow and flow past a circular cylinder. Numerical experiments have shown that the discrete direct forcing approach is very effective. In numerical simulation of flow behind the AVG, the computational results are comparable to the experimental data.
Fingerprint verification using mutual information
Authors: Hemanth Krishnappa, Hongyu Guo
Venue: Journal of Computing Sciences in Colleges (2008)

One of the most reliable biometric identification methods has been fingerprint verification, which is in use over a century all over the world. Fingerprint verification became inexpensive, more reliable and less time consuming after the introduction of the Automatic Fingerprint Identification System (AFIS). Today, fingerprints are used broadly as an authentication to access a computer, bank account, building, car, etc., apart from identifying criminals, which was the major use of fingerprints years ago. There are several algorithms available for fingerprint verification. This paper aims at verifying the reference fingerprint against the target fingerprint using the Mutual Information algorithm where the input images undergo translation and rotation processes in the preprocessing stage and calculates the mutual information values for each step of rotation and translation. The ultimate aim is to find the best alignment of fingerprints by maximizing the mutual information.
Exploiting MDS Projections for Cross-language IR
Authors: Rafael E. Banchs, Andreas Kaltenbrunner
Venue: Proceedings of the 31st annual international ACM SIGIR conference on Research and development in information retrieval (2008)

In this paper, we describe some preliminary work on using monolingual projections of document collections for performing cross-language information retrieval tasks. The proposed methodology uses multidimensional scaling for projecting the vector-space representations of a given multilingual document collection into spaces of lower dimensionality. An independent projection is computed for each different language, and the structural similarities of the resulting projections are exploited for information retrieval tasks.
Discussing DRAM and CMOS Scaling with Inventor Bob Dennard
Venue: IEEE Design Test (2008)

This is one of a series of ongoing interviews in IEEE Design & Test with well-known engineers in the electronics industry. In this interview, Ken Wagner talks with IBM Fellow Bob Dennard, the inventor of DRAM. In addition to his foundational work in DRAM, Dennard is also well-known for his work in CMOS process scaling.
Towards human competitive driving of scale model of a car
Authors: Ivan Tanev, Katsunori Shimohara
Venue: ACM SIGEVOlution (2007)

The success of the computer playing board games (e.g., chess [8], checkers [4], backgammon, tic-tac-toe, etc.) has long served as an indication of the progress in the field of artificial intelligence (AI). The expanding scope of applicability of AI, when the latter is employed to control the individual characters (agents) which are able to "learn" the environment, often including opponents, and to adopt an adaptive optimal (rather than a priori preprogrammed) playing tactics and strategy include soccer [15], motocross and car racing [3, 21], etc. [4], [6]. In this article, we focus on the domain of car racing, and consider the problem of designing a driving agent, able to remotely control a scale model of a racing car, which runs in a human-competitive, fast and consistent way. Adhering to the commonly recognized criteria of the human competitiveness of automatically evolved solutions, we attempt to verify that the evolved driving agent "holds its own or wins a regulated competition involving human contestants" [11].
MPE-based discriminative linear transforms for speaker adaptation
Authors: Lan Wang, Philip C. Woodland
Venue: Computer Speech and Language (2008)

In this paper, the use of discriminative linear transforms (DLT) is investigated to construct speaker adaptive speech recognition systems, where a discriminative criterion rather than ML is used for transform parameter estimation. The minimum phone error (MPE) criterion is investigated for DLT estimation, by making use of a so-called weak-sense auxiliary function to derive the estimation formulae. An implementation based on lattices is used for DLT statistics accumulation, where the use of a weakened language model allows more confusion data to be included. To improve DLT estimation for unsupervised adaptation, a method of incorporating word correctness information of the supervision into transform estimation is developed. The confidence scores calculated by confusion network decoding are used to represent the word correctness and weight the numerator statistics during DLT estimation. This makes the DLT estimation less sensitive to errors in the supervision. Experiments on transcription of read newspaper data and on conversational telephone speech transcription have shown the improvements of DLT over MLLR for both supervised and unsupervised adaptation, and the effectiveness of confidence scores for improving both normal and DLT-based MLLR adaptation.
A Conceptual Model of Adjectival Modification in Chinese and Its Automatic Construction from a Machine Readable Dictionary
Authors: Xuening Li, Ruzhan Lu, Yi Hu
Venue: Proceedings of the 2008 International Conference on Multimedia and Ubiquitous Engineering (2008)

In this paper, we develop previous AVS models and propose a conceptual model to represent adjectival modification in Chinese, with the emphasis laid on its polysemy. Through a method based on rough pattern, we can extract automatically this model from the corresponding senses of adjectival entries in a machine-readable dictionary. This work belongs to a family of research into the automatic compiling of CFL pedagogical e-dictionary based on Modern Chinese Standard Dictionary.
Detecting an invasive shrub in a deciduous forest understory using late-fall Landsat sensor imagery
Authors: J. Resasco, A. N. Hale, M. C. Henry, D. L. Gorchov
Venue: International Journal of Remote Sensing (2007)

Landsat TM and ETM+ imagery was used to distinguish areas of high vs. low cover of Amur honeysuckle (Lonicera maackii), taking advantage of the late leaf retention of this invasive shrub. L. maackii cover was measured in eight stands and compared to 15 Landsat 5 TM and Landsat 7 ETM+ images from spring and autumn dates from 1999 to 2006. Jeffries-Matusita (JM) distance calculations showed potential separability between high vs. low/zero cover classes of L. maackii on some late fall images. The Soil Adjusted Atmospheric Resistant Vegetation Index (SARVI2) revealed higher levels of green biomass in high L. maackii cover plots than low/zero cover plots for November images only. These findings justify further investigation of the effectiveness of late fall images to map the historical spread of L. maackii and other forest understory invasives with similar phenology.
Correctness of data mined from CVS
Authors: Christopher Thomson, Mike Holcombe
Venue: Proceedings of the 2008 international working conference on Mining software repositories (2008)

Source code repositories managed by the popular CVS are frequently mined by researchers to validate various hypotheses about how the development of a software product progressed. This paper presents a study where the development process of 17 student teams was followed. It will show that in an environment where the teams were permitted to manage their own CVS repositories that several errors emerged that could lead to the misinterpretation of a hypothesis. These were classified into three types: type one errors which relate to the non-use of the system; type two errors that emerged from the direct manipulation of the repository; and type three errors from the limitation of CVS not to record file name changes.
Four short reviews of current software engineering books of interest
Authors: Ross Gagliano
Venue: Ubiquity (2008)

Associate Editor Ross Gagliano offers four Short Reviews of current Software Engineering books of interest.
Connectivity of Thetis, a Distributed Hybrid Simulator, with a Mixed Control Architecture
Authors: Olivier Parodi, Abdellah El Jalaoui, David Andreu
Venue: Proceedings of the Fourth International Conference on Autonomic and Autonomous Systems (2008)

The purpose of this paper is to present the linkage of Thetis (a real time multi-vehicles hybrid simulator for heterogeneous vehicles) with a control architecture for the management of contextual tasks on AUVs (Autonomous Underwater Vehicle), both developed at LIRMM (France). An AUV is mainly composed of an onboard informatics system and a set of sensors and actuators. We design a 2-layer control architecture (global supervisor, local supervisors, and a set of management modules which are in charge of the means of perception and actions), allowing for facing Hardware (embedded instrumentation) and software evolutions. Due to the complexity and the sophistication of the control of actual underwater systems, it is necessary to check the embedded robot controller, i.e. all its constitutive hardware and software sub-systems before beginning any real mission. To achieve this goal it's possible to call upon simulation, thus avoiding heavy and numerous experimentations. Thetis is able to provide the necessary environment to test real robots and their interactions (communication and collision detection). Indeed this simulator allows hardware in loop simulations with the support of virtual sensors.The paper first describes the architecture and functionalities of Thetis, then the control architecture of our AUVs is briefly presented. We conclude with the advantages of connecting the 2 systems together.
A scalable framework for the solution of stochastic inverse problems using a sparse grid collocation approach
Authors: N. Zabaras, B. Ganapathysubramanian
Venue: Journal of Computational Physics (2008)

Experimental evidence suggests that the dynamics of many physical phenomena are significantly affected by the underlying uncertainties associated with variations in properties and fluctuations in operating conditions. Recent developments in stochastic analysis have opened the possibility of realistic modeling of such systems in the presence of multiple sources of uncertainties. These advances raise the possibility of solving the corresponding stochastic inverse problem: the problem of designing/estimating the evolution of a system in the presence of multiple sources of uncertainty given limited information. A scalable, parallel methodology for stochastic inverse/design problems is developed in this article. The representation of the underlying uncertainties and the resultant stochastic dependant variables is performed using a sparse grid collocation methodology. A novel stochastic sensitivity method is introduced based on multiple solutions to deterministic sensitivity problems. The stochastic inverse/design problem is transformed to a deterministic optimization problem in a larger-dimensional space that is subsequently solved using deterministic optimization algorithms. The design framework relies entirely on deterministic direct and sensitivity analysis of the continuum systems, thereby significantly enhancing the range of applicability of the framework for the design in the presence of uncertainty of many other systems usually analyzed with legacy codes. Various illustrative examples with multiple sources of uncertainty including inverse heat conduction problems in random heterogeneous media are provided to showcase the developed framework.