ppxscal/embedding_network huggingface dataset:
Seam tracking of intelligent arc welding robot
Authors: Khadijeh Daeinabi, Mohammad Teshnehlab
Venue: Proceedings of the 6th WSEAS International Conference on Systems Theory & Scientific Computation (2006)

Intelligent welding robots obtain a good quality of the welding results. Research on automatic and intelligent control of Arc welding is an important means for ensuring weld quality, raising productivity, and improving labor conditions. Despite its widespread use in the various manufacturing industries, the full automation of the robotic welding has not yet been achieved partly because mathematical models for the process parameters for a given welding tasks are not fully understood and quantified. The first problem that should be solved for the automation of welding processes is weld-seam tracking. In this research, an attempt has been made to recognize path of weld groove by vision.
Theories and practice of design for information systems: eight design perspectives in ten short weeks
Authors: David G. Hendry, Batya Friedman
Venue: Proceedings of the 7th ACM conference on Designing interactive systems (2008)

Students come to design education with different goals. Some seek to acquire expertise in design, others to learn specialized methods tailored to a research domain. Furthermore, students in the area of information system design confront a large literature of diverse perspectives on design, all of which are potentially useful. To disentangle this literature and to develop students' knowledge and know-how for design, a ten-week course, titled Theories and Practice of Design for Information Systems, was developed. Pedagogically, this introductory course is neither a studio course nor a methods course. Instead, it takes a "design perspectives" approach where students engage a number of substantial perspectives on design through conceptual and experiential study. This paper introduces this pedagogical approach and describes eight design perspectives including readings, key questions, and activities. It concludes with lessons learned for positioning students to engage the interplay between the theory and practice of information system design.
What are information technology's key qualifications?
Authors: Christina Dörge, Carsten Schulte
Venue: Proceedings of the 13th annual conference on Innovation and technology in computer science education (2008)

What kind of IT key qualifications do we have to teach in order to lessen the digital divide between educated and uneducated IT users, and to enable students who live in an IT-rich world to gain insights into the underlying science? In this paper we argue that key qualifications, IT skills, and IT or media literacy can not be reduced to the teaching of applicational aspects, that is, to the functional characteristics of the IT systems in question. Instead, IT key qualifications consist in knowledge about the concepts of computer science. Applying the concept of educational lenses (described in previous papers) to a course on IT key qualifications, we are able to obtain a more focused approach towards a definition of IT skills.
Remote Medical Monitoring
Authors: Andrew D. Jurik, Alfred C. Weaver
Venue: Computer (2008)

Body network sensors have become lightweight healthcare assistants—they acquire data, run diagnostics, report adverse events, and even warn of unsafe situations.
Open Source Communities as Social Networks: An Analysis of Some Peculiar Characteristics
Authors: Giulio Concas, Manuela Lisci, Sandro Pinna, Guido Porruvecchio, Selene Uras
Venue: Proceedings of the 19th Australian Conference on Software Engineering (2008)

In this research, we focus the attention on some of the most successful Open Source (OS) projects. We are interested in studying the characteristics of the social networks comprising these popular and mature OS developer communities. By examining developers Mailing Lists (MLs), we adopt some Social Network Analysis (SNA) measures to evaluate interactions among community members. A knowledge of these relationships is useful for a better understanding of communication flows among team members and whether there is someone coordinating, controlling and facilitating the information process.
Approximation algorithms for geometric embeddings in the plane with applications to parallel processing problems
Authors: M. D. Hansen
Venue: Proceedings of the 30th Annual Symposium on Foundations of Computer Science (1989)

Given an undirected graph G with N vertices and a set P of N points in the plane, the geometric embedding problem consists of finding a bijection from the vertices of G to the points in the plane which minimize the sum total of edge lengths of the embedded graph. Fast approximation algorithms are given for embedding d-dimensional grids in the plane within a factor of O(log N) times optimal cost for d>2 and O(log/sup 2/N) for d=2. It is shown that any embedding of a hypercube, butterfly, or shuffle-exchange graph must be within an O(log N) factor of optimal cost. When the points of P are randomly distributed or arranged in a grid, a polynomial-time algorithm that can embed arbitrary weighted graphs in these points with cost within an O(log/sup 2/N) factor of optimal is given. It is shown how the algorithms developed for geometric embeddings can be used to give O(log/sup 2/N) times optimal solutions to problems of performance optimization for parallel processors.
HERMES: A Software Architecture for Visibility and Control in Wireless Sensor Network Deployments
Authors: Nupur Kothari, Kiran Nagaraja, Vijay Raghunathan, Florin Sultan, Srimat Chakradhar
Venue: Proceedings of the 7th international conference on Information processing in sensor networks (2008)

Designing reliable software for sensor networks is challenging because application developers have little visibility into, and understanding of, the post-deployment behaviorof code executing on resource constrained nodes in remoteand ill-reproducible environments. To address this problem,this paper presents HERMES, a lightweight framework and prototype tool that provides fine-grained visibility and control of a sensor node’s software at run-time. HERMES’sarchitecture is based on the notion of interposition, which enables it to provide these properties in a minimally intrusive manner, without requiring any modification to software applications being observed and controlled. HERMES providesa general, extensible, and easy-to-use framework forspecifying which software components to observe and controlas well as when and how this observation and control is done. We have implemented and tested a fully functional prototype of HERMES for the SOS sensor operating system. Our performance evaluation, using real sensor nodesas well as cycle-accurate simulation, shows that HERMES successfully achieves its objective of providing fine-grained and dynamic visibility and control without incurring significant resource overheads. We demonstrate the utility and flexibility of HERMES by using our prototype to design, implement,and evaluate three case-studies: debugging and testing deployed sensor network applications, performing transparent software updates in sensor nodes, and implementingnetwork traffic shaping and resource policing.
Deterministic neural classification
Authors: Kar-Ann Toh
Venue: Neural Computation (2008)

This letter presents a minimum classification error learning formulation for a single-layer feedforward network (SLFN). By approximating the nonlinear counting step function using a quadratic function, the classification error rate is shown to be deterministically solvable. Essentially the derived solution is related to an existing weighted least-squares method with class-specific weights set according to the size of data set. By considering the class-specific weights as adjustable parameters, the learning formulation extends the classification robustness of the SLFN without sacrificing its intrinsic advantage of being a closed-form algorithm. While the method is applicable to other linear formulations, our empirical results indicate SLFN's effectiveness on classification generalization.
Incorporating Security Requirements Engineering into the Rational Unified Process
Authors: Nancy R. Mead, Venkatesh Viswanathan, Justin Zhan
Venue: Proceedings of the 2008 International Conference on Information Security and Assurance (isa 2008) (2008)

This paper provides a roadmap for developing security-critical projects using Rational Unified Process as a framework for development. The Security Quality Requirements Engineering (SQUARE) methodology provides a way to address security issues early in the development lifecycle. SQUARE can be more effective when it fits into an organization’s existing development process. Hence this paper describes a way to fit the SQUARE methodology into the Rational Unified Process.
Automatic Segmentation of Optic Nerve Fibers
Authors: Zhao Ximei, Wu Jinyan, Ren Qiushi, Zhou Guomin
Venue: Proceedings of the 2008 International Conference on BioMedical Engineering and Informatics - Volume 02 (2008)

The cross-sectional morphometry of different fiber types is an important tool in studying the structure and function of healthy and diseased human optic nerve. However, such studies are hampered by the thousands of fibers involved when manual segmentation has to be used. We have developed an automatic segmentation method that combines several image processing techniques. First, using region growing segments the axon and myelin sheath by combining the feature information together with spatial information, and obtains a binary image. Next, identify the axon candidates by labeling closed region and remove false axons. Then the connected myelin sheaths are separated from each other using the maximum gradient magnitude of the outer annulus. Our results indicate that this approach for segmenting optic nerve fiber images is fast, accurate, and reproducible compared with manual segmentation.
A peer-to-peer middleware platform for fault-tolerant, QoS, real-time computing
Authors: Rolando Martins, Luís Lopes, Fernando Silva
Venue: Proceedings of the 2nd workshop on Middleware-application interaction: affiliated with the DisCoTec federated conferences 2008 (2008)

In this paper we present the architecture of RTPM, a middleware framework aimed at supporting the development and management of information systems for high-speed public transportation systems. The framework is based on a peer-to-peer overlay infrastructure with the main focus being on providing a scalable, resilient, reconfigurable, highly available platform for real-time and QoS computing.
On the energy distribution of interface states and their relaxation time and capture cross section profiles in Al/SiO2/p-Si (MIS) Schottky diodes
Authors: Ş. Altındal, H. Kanbur, İ. Yücedağ, A. Tataroğlu
Venue: Microelectronic Engineering (2008)

The energy distribution profile of the interface states (N"s"s) and their relaxation time (@t) and capture cross section (@s"p) of metal-insulator-semiconductor (Al/SiO"2/p-Si) Schottky diodes have been investigated by using the high-low frequency capacitance and conductance methods. The capacitance-voltage (C-V) and conductance-voltage (G/@w-V) characteristics of these devices were investigated by considering series resistance (R"s) effects in a wide frequency range (5kHz-1MHz.). It is shown that the capacitance of the Al/SiO"2/p-Si Schottky diode decreases with increasing frequency. The increase in capacitance especially at low frequencies results form the presence of interface states at Si/SiO"2 interface. The energy distributions of the interface states and their relaxation time have been determined in the energy range of (0.362-E"v)-(0.512-E"v)eV by taking into account the surface potential as a function of applied bias obtained from the measurable C-V curve (500Hz) at the lowest frequency. The values of the interface state density (N"s"s) ranges from 2.34x10^1^2 to 2.91x 10^1^2eV^-^1/cm^2, and the relaxation time (@t) ranges from 1.05x10^-^6 to 1.58x10^-^4s, showing an exponential rise with bias from the top of the valance band towards the mid-gap.
Microsoft Windows Vista Business Quick Source Guide
Authors: Quick Source
Venue:  (2007)

Do you need an easy-to-follow software reference right at your fingertips? Our 6 page, tri-fold guides are the answer. These quick reference guides include step by step instructions to help users to learn software features more quickly, as well as full color screen graphics to highlight important features. Quick Source reference guides also include the software program s NEW features and gives you quick access to time saving shortcuts. The Microsoft Windows Vista Business Quick Source guide is a clear and concise tool for learning the features in Windows Vista. Features contained in this guide include NEW features such as Using Live Thumbnails, Setting Up Windows Meeting Space, and Creating a Meeting in Windows Meeting Space. It also includes Using the Taskbar, Using the Start Menu, Navigating in a Folder Window, Changing the Folder View, Searching for an Item on Your Computer, Changing the Window Color, Applying a Screen Saver, Sharing a Folder, Creating a Shortcut t a Program, Checking Security Settings, and much more.
Oblivious Transfer Using Elliptic Curves
Authors: Abhishek Parakh
Venue: Cryptologia (2007)

In this article we propose an algorithm for oblivious transfer using elliptic curves. Also, we present its application to chosen one-out-of-two oblivious transfer.
Security by Checklist
Authors: Steve Bellovin
Venue: IEEE Security and Privacy (2008)

We've all seen the checklists with suggestions for how to secure your system. Many of us have even written them. (I have.) The problem is that security is more complicated than that, and checklists—especially if followed slavishly or enforced without thought—can make matters worse.
Counting people using video cameras
Authors: Damian Roqueiro, Valery A. Petrushin
Venue: International Journal of Parallel, Emergent and Distributed Systems (2007)

The paper is devoted to the problem of estimating the number of people visible in a camera. It uses as features the ratio of foreground pixels in each cell of a rectangular grid. Using the above features and data mining techniques allowed reaching accuracy up to 85% for exact match and up to 95% for plus-minus one estimates for an indoor surveillance environment. Applying median filters to the sequence of estimation results increased the accuracy up to 91% for exact match. The architecture of a real-time people counting estimator is suggested. The results of analysis of experimental data are provided and discussed.
Self-adaptation of event-driven component-oriented middleware using aspects of assembly
Authors: Daniel Cheung-Foo-Wo, Jean-Yves Tigli, Stéphane Lavirotte, Michel Riveill
Venue: Proceedings of the 5th international workshop on Middleware for pervasive and ad-hoc computing: held at the ACM/IFIP/USENIX 8th International Middleware Conference (2007)

Pervasive devices are becoming popular and smaller. Those mobile systems should be able to adapt to changing requirements and execution environments. But it requires the ability to reconfigure deployed codes, which is considerably simplified if applications are component-oriented rather than monolithic blocks of codes. So, we propose a middleware called WComp which federates an event-driven component-oriented approach to compose distributed services for devices. This approach is coupled with adaptation mechanisms dealing with separation of concerns. In such mechanisms, aspects (called Aspects of Assembly) are selected either by the user or by a self-adaptive process and composed by a weaver with logical merging of high-level specifications. The result of the weaver is then projected in terms of pure elementary modifications of components assemblies with respect to blackbox properties of COTS components. Our approach is validated by analyzing the results of different experiments drawn from sets of application configurations randomly generated and by showing its advantages while evaluating the additional costs on the reaction time to context changing.
Security Issues of Collaborative Review System
Authors: Yuseung Sohn, Hyun-Yi Moon, Seunglim Yong, Sang-Ho Lee
Venue: Proceedings of the Fifth International Conference on Information Technology: New Generations (2008)

CORE (COllaborative Review Environment) system is designed for a networked intelligent manufacturing system that uses virtual reality technology for design review, simulation and virtual manufacturing. Most virtual environment architectures, including CORE system, have mainly paid attention to the quality of service with little or no concern of information security of the virtual reality system. In this paper, we introduce CORE system and analyze architecture of the system. We find out possible security vulnerabilities according to five areas of information assurance and propose security countermeasures against the vulnerabilities.
GridMate: A Portable Simulation Environment for Large-Scale Adaptive Scientific Applications
Authors: Xiaolin Li, Manish Parashar
Venue: Proceedings of the 2008 Eighth IEEE International Symposium on Cluster Computing and the Grid (2008)

In this paper, we present a portable simulation environment GridMate for large-scale adaptive scientific applications in multi-site Grid environments. GridMate is a discrete-event based simulator, consisting of abstractions of trace-based applications, computing resources, partitioners and schedulers, a 3D visualization tool, and user interfaces. It supports the analysis of runtime management strategies that address spatial and temporal heterogeneity in both adaptive scientific applications and geographically distributed resources in Grid computing environments. The targeted applications are a class of emerging large-scale dynamic Grid applications that require large amount of computational resources typically spanning multiple sites and exhibit long execution times. The underlying partitioning and scheduling algorithms are based on our previous work on the hybrid space-time runtime management strategy (HRMS). HRMS defines a set of flexible mechanisms and policies to adapt to state transitions of both applications and resources. The major components of GridMate are developed in Java, making GridMate highly portable and extensible. The design of GridMate and simulation results using GridMate are presented.
Binary self-dual codes with automorphisms of order 23
Authors: Radinka Yorgova, Alfred Wassermann
Venue: Designs, Codes and Cryptography (2008)

The only example of a binary doubly-even self-dual [120,60,20] code was found in 2005 by Gaborit et al. (IEEE Trans Inform theory 51, 402---407 2005). In this work we present 25 new binary doubly-even self-dual [120,60,20] codes having an automorphism of order 23. Moreover we list 7 self-dual [116,58,18] codes, 30 singly-even self-dual [96,48,16] codes and 20 extremal self-dual [92,46,16] codes. All codes are new and present different weight enumerators.
WARP: a flexible platform for clean-slate wireless medium access protocol design
Authors: Ahmed Khattab, Joseph Camp, Chris Hunter, Patrick Murphy, Ashutosh Sabharwal, Edward W. Knightly
Venue: ACM SIGMOBILE Mobile Computing and Communications Review (2008)

The flexible interface between the medium access layer and the custom physical layer of the Rice University Wireless Open-Access Research Platform (WARP) provides a high performance research tool for clean-slate cross layer designs. As we target a community platform, we have implemented various basic PHY and MAC technologies over WARP. Moreover, we are implementing cross-layer schemes such as rate adaptation and crosslayer MIMO MAC protocols. In this demo, we demonstrate the flexibility of the interaction between the the WARP PHY and MAC layers by showing the capability to instantaneously change the modulation scheme, disabling/enabling MAC features such as carrier sensing or RTS/CTS 4-way handshake, and different multi-rate schemes.
Spillway flow modeling by finite volume solution of slopping depth averaged equations on triangular mesh: application to KAROUN-4
Authors: Saeed-Reza Sabbagh-Yazdi
Venue: Proceedings of the 10th WSEAS International Conference on APPLIED MATHEMATICS (2006)

The results of a numerical analyzer for solving super critical free surface flow in chute spillways with steep slope are presented in this paper. The developed model consists of depth averaged equations for flow on surface with steep slope toward one of the main horizontal axes of Cartesian coordinates. The depth-averaged form of the flow equations converted to discrete form for unstructured meshes using the cell vertex finite volume method. Therefore, the horizontal mesh is firstly transformed into inclined coordinate system. Then the discrete formulations are solved on the transformed mesh. Having computed the velocity vector parallel to the bed surface and flow depth perpendicular to the bed surface, the model computes three components of the velocity in Cartesian coordinate system as well as the water depths parallel to the z axe in vertical direction. The develop model is utilized for simulation of various flow regimes in prismatic canals, which have two different constant bed slopes in certain direction. The numerical results present the ability of the model to simulate very high speed super-critical flows in very steep bed slopes. Finally, application of the developed model on simulation of sub and super critical flow from reservoir to steep chutes and ski jump flip bucket spillways of KAROUN-4 in KHOZESTAN province of IRAN produced encouraging results.
Prediction of mean monthly total ozone time series-application of radial basis function network
Authors: Surajit Chattopadhyay
Venue: International Journal of Remote Sensing (2007)

The primary objective of the present paper is to apply Artificial Neural Network in the form of Radial Basis Function network to predict the mean monthly total ozone concentration over Arosa, Switzerland (46.8° N/9.68° E). The satellite observations of the total ozone content are based on the total ozone observations performed by the ground-based instrumentation. While analysing the dataset it was found that January, February and March are the months of maximum variability in the mean monthly total ozone over the stated region. Then, these three months were considered as the target months to frame the predictive model. After appropriate training and testing, it was found that Radial Basis Function network is a suitable neural net type for predicting the aforesaid time series. Moreover, this kind of neural net was found most adroit in predicting the mean monthly total ozone in the month of January.
Sedflux 2.0: An advanced process-response model that generates three-dimensional stratigraphy
Authors: Eric W. H. Hutton, James P. M. Syvitski
Venue: Computers Geosciences (2008)

Sedflux 2.0 is the newest version of the Sedflux basin-filling model. Sedflux 2.0 provides a framework within which individual process-response models of disparate time and space resolutions communicate with one another to deliver multigrain-sized sediment load across a continental margin. Version 2.0 introduces a series of new process models, and the ability to operate in one of two modes to track the evolution of stratigraphy in either two or three dimensions. Additions to the 2D mode include the addition of models that simulate (1) erosion and deposition of sediment along a riverbed, (2) cross-shore transport due to ocean waves, and (3) turbidity currents and hyperpycnal flows. New processes in the 3D mode include (1) river channel avulsion, (2) two-dimensional diffusion due to ocean storms, and (3) two-dimensional flexure due to sediment loading. The spatial resolution of the architecture is typically 1-25cm in the vertical and 10-100m in the horizontal when operating in 2D mode. In 3D mode, the horizontal resolution usually extends to kilometers. In addition to fixed time steps (from days to hundreds of years), Sedflux 2.0 offers event-based time stepping as a way to conduct long-term simulations while still modeling low-frequency but high-energy events.