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Articles 54481 - 54510 of 57996
Full-Text Articles in Physical Sciences and Mathematics
Sciagents--An Agent Based Environment For Distributed, Cooperative Scientific Computing, Tzvetan T. Drashansky, Anupam Joshi, John R. Rice
Sciagents--An Agent Based Environment For Distributed, Cooperative Scientific Computing, Tzvetan T. Drashansky, Anupam Joshi, John R. Rice
Department of Computer Science Technical Reports
No abstract provided.
Arbitrary Topology Shape Reconstruction From Planar Cross Sections, Chandrajit L. Bajaj, Edward J. Coyle, Kwun-Nan Lin
Arbitrary Topology Shape Reconstruction From Planar Cross Sections, Chandrajit L. Bajaj, Edward J. Coyle, Kwun-Nan Lin
Department of Computer Science Technical Reports
No abstract provided.
Adaptive Reconstruction Of Surfaces And Scalar Fields From Dense Scattered Trivariate Data, Chandrajit L. Bajaj, Fasuto Bernardini, Guoliang Xu
Adaptive Reconstruction Of Surfaces And Scalar Fields From Dense Scattered Trivariate Data, Chandrajit L. Bajaj, Fasuto Bernardini, Guoliang Xu
Department of Computer Science Technical Reports
No abstract provided.
A Unified Approach To Multilayer Routing, Sreekrishna Madhwapathy
A Unified Approach To Multilayer Routing, Sreekrishna Madhwapathy
Masters Theses
Several Over-the-Cell (OTC) routing algorithms have been proposed for two and three layer processes. All the existing OTC routers assume that the terminals are laid out in a specific predetermined fashion. These restrictions on the terminals complicate the task of cell design and increase the width of the cells.
In this thesis, we report two results. First, we present a new layout methodology, for obtaining minimum width cells, with arbitrarily located terminals. Next, we develop a multilayer routing approach, which is independent of the cell model used in the layout design. Freed from fixed terminal placement restrictions, cell designers can …
Tact Volume 4 Issue 1, Touro College Department Of Academic Computing
Tact Volume 4 Issue 1, Touro College Department Of Academic Computing
Yearbooks and Newsletters
"Touro Academic Computing Technologies: The Newsletter of Academic Computing at Touro College"
Search For Supersymmetric Particles With R-Parity Violation In Z Decays, D. Buskulic, Manoj Thulasidas
Search For Supersymmetric Particles With R-Parity Violation In Z Decays, D. Buskulic, Manoj Thulasidas
Research Collection School Of Computing and Information Systems
Searches for supersymmetric particles produced in e+e− interactions at the Z peak have been performed under the assumptions that R-parity is not conserved, that the dominant R-parity violating coupling involves only leptonic fields, and that the lifetime of the lightest supersymmetric particle can be neglected. In a data sample collected by the ALEPH detector at LEP up to 1993, and corresponding to almost two million hadronic Z decays, no signal was observed. As a result, supersymmetric particle masses and couplings are at least as well constrained as under the usual assumption of R-parity conservation.
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 11, Number 4, April 1995, College Of Engineering And Computer Science, Wright State University
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 11, Number 4, April 1995, College Of Engineering And Computer Science, Wright State University
BITs and PCs Newsletter
A twelve page newsletter created by the Wright State University College of Engineering and Computer Science that addresses the current affairs of the college.
Exceptions And Exception Handling In Computerized Information Processes, Diane M. Strong, Steven M. Miller
Exceptions And Exception Handling In Computerized Information Processes, Diane M. Strong, Steven M. Miller
Research Collection School Of Computing and Information Systems
Exceptions, situations that cannot be correctly processed by computer systems, occur frequently in computer-based information processes. Five perspectives on exceptions provide insights into why exceptions occur and how they might be eliminated or more efficiently handled. We investigate these perspectives using an in-depth study of an operating information process that has frequent exceptions. Our results support the use of a total quality management (TQM) approach of eliminating exceptions for some exceptions, in particular, those caused by computer systems that are poor matches to organizational processes. However, some exceptions are explained better by a political system perspective of conflicting goals between …
An Upper Limit For The Τ Neutrino Mass From Τ → 5Π(Π0)Ντ Decays, D. Buskulic, M. Thulasidas
An Upper Limit For The Τ Neutrino Mass From Τ → 5Π(Π0)Ντ Decays, D. Buskulic, M. Thulasidas
Research Collection School Of Computing and Information Systems
From a sample of 152,000 τ decays collected by the ALEPH detector at LEP an upper limit of 24 MeV at 95% CL on the τ neutrino mass has been determined. The limit is obtained using a two dimensional likelihood fit of the visible energy and the invariant mass distribution of 25 τ → 5π(π0)ντ events.
Planar Over The Cell Routing, Srinivasa R. Danda
Planar Over The Cell Routing, Srinivasa R. Danda
Masters Theses
Planar over the cell routing in standard cell layouts is an important problem and it has been studied quite extensively. In two layer standard cell design methodology, Ml layer is typically used for connections internal to the cell, and the M2 layer is available for routing over-the-cell. In this thesis, we consider the Two Row Maximum Planar Subset (TRMPS) problem in Over-The-Cell routing. The TRMPS problem requires selection of the maximum planar subset of nets, which can be routed between two rows of terminals in a cell row. This problem was first encountered by Cong, Liu, and Preas [3]. They …
Evolving Globally Synchronized Cellular Automata, Rajarshi Das, James P. Crutchfield, Melanie Mitchell, James M. Hanson
Evolving Globally Synchronized Cellular Automata, Rajarshi Das, James P. Crutchfield, Melanie Mitchell, James M. Hanson
Computer Science Faculty Publications and Presentations
How does an evolutionary process interact with a decentralized, distributed system in order to produce globally coordinated behavior? Using a genetic algorithm (GA) to evolve cellular automata (CAs), we show that the evolution of spontaneous synchronization, one type of emergent coordination, takes advantage of the underlying medium's potential to form embedded particles. The particles, typically phase defects between synchronous regions, are designed by the evolutionary process to resolve frustrations in the global phase. We describe in detail one typical solution discovered by the GA, delineating the discovered synchronization algorithm in terms of embedded particles and their interactions. We also use …
Mpvm: A Migration Transparent Version Of Pvm, Jeremy Casas, Dan Clark, Ravi Konuru, Steve Otto, Robert Prouty, Jonathan Walpole
Mpvm: A Migration Transparent Version Of Pvm, Jeremy Casas, Dan Clark, Ravi Konuru, Steve Otto, Robert Prouty, Jonathan Walpole
Computer Science Faculty Publications and Presentations
Parallel Virtual Machine (PVM) is a widely-used software system that allows a heterogeneous set of parallel and serial UNIX-based computers to be programmed as a single message-passing parallel machine, In this paper, an extension to PVM to support dynamic process migration is presented. Support for migration is important in general-purpose workstation environments since it allows parallel computations to co-exist with other applications, using idle-cycles as they become available and off-loading from workstations when they are no longer free. A description and evaluation of the design and implementation of the prototype Migratable PVM system is presented together with some performance results.
Low-Level Interfaces For High-Level Parallel I/O, Nils Nieuwejaar, David Kotz
Low-Level Interfaces For High-Level Parallel I/O, Nils Nieuwejaar, David Kotz
Dartmouth Scholarship
As the I/O needs of parallel scientific applications increase, file systems for multiprocessors are being designed to provide applications with parallel access to multiple disks. Many parallel file systems present applications with a conventional Unix-like interface that allows the application to access multiple disks transparently. By tracing all the activity of a parallel file system in a production, scientific computing environment, we show that many applications exhibit highly regular, but non-consecutive I/O access patterns. Since the conventional interface does not provide an efficient method of describing these patterns, we present three extensions to the interface that support \em strided, \em …
Exploring The Use Of I/O Nodes For Computation In A Mimd Multiprocessor, David Kotz, Ting Cai
Exploring The Use Of I/O Nodes For Computation In A Mimd Multiprocessor, David Kotz, Ting Cai
Dartmouth Scholarship
As parallel systems move into the production scientific-computing world, the emphasis will be on cost-effective solutions that provide high throughput for a mix of applications. Cost-effective solutions demand that a system make effective use of all of its resources. Many MIMD multiprocessors today, however, distinguish between “compute” and “I/O” nodes, the latter having attached disks and being dedicated to running the file-system server. This static division of responsibilities simplifies system management but does not necessarily lead to the best performance in workloads that need a different balance of computation and I/O. \par Of course, computational processes sharing a node with …
Knowledge Acquisition And Structuring By Multiple Experts In A Group Support Systems Environment, Bernard Lee Lewis
Knowledge Acquisition And Structuring By Multiple Experts In A Group Support Systems Environment, Bernard Lee Lewis
Engineering Management & Systems Engineering Theses & Dissertations
This study addresses the impact of Group Decision Support Systems (GDSS) on expert system development by multiple Domain Experts. Current approaches to building expert systems rely heavily on knowledge acquisition and prototyping by a Knowledge Engineer working directly with the Domain Expert. Although the complexity of knowledge domains and new organizational approaches demand the involvement of multiple experts, standard procedures limit the ability of the Knowledge Engineer to work with more than one expert at a time.
Group Decision Support Systems offer a networked computerized environment for group work activities, in which multiple experts may express their ideas concurrently and …
Generalization Metrics For Neural Modeling Applications In System Identification, Denise M. Reeves
Generalization Metrics For Neural Modeling Applications In System Identification, Denise M. Reeves
Electrical & Computer Engineering Theses & Dissertations
In this thesis a procedure to design multilayer feedforward networks for system identification with good prediction properties is presented. Central to the design procedure is a means to characterize the prediction capabilities of various trained neural networks. Such knowledge will allow for the identification of the best network design. For system identification purposes, a "good" model is one that is good at predicting, In particular, a good model is one that produces small prediction errors when applied to a set of cross-validation data. We formulate and implement a criterion function designed to measure the size of a trained neural network's …
Expanding The Potential For Disk-Directed I/O, David Kotz
Expanding The Potential For Disk-Directed I/O, David Kotz
Computer Science Technical Reports
As parallel computers are increasingly used to run scientific applications with large data sets, and as processor speeds continue to increase, it becomes more important to provide fast, effective parallel file systems for data storage and for temporary files. In an earlier work we demonstrated that a technique we call disk-directed I/O has the potential to provide consistent high performance for large, collective, structured I/O requests. In this paper we expand on this potential by demonstrating the ability of a disk-directed I/O system to read irregular subsets of data from a file, and to filter and distribute incoming data according …
A Pseudo-Algorithmic Separation Of Lines From Pseudo-Lines, William Steiger, Ileana Streinu
A Pseudo-Algorithmic Separation Of Lines From Pseudo-Lines, William Steiger, Ileana Streinu
Computer Science: Faculty Publications
No abstract provided.
1.4, Yolanda Jones
Supereulerian Graphs And The Petersen Graph, Ii, Zhi-Hong Chen, Hong-Jian Lai
Supereulerian Graphs And The Petersen Graph, Ii, Zhi-Hong Chen, Hong-Jian Lai
Scholarship and Professional Work - LAS
In this note, we verify two conjectures of Catlin in [J. Graph Theory 13 (1989) 465 - 483] for graphs with at most 11 vertices. These are used to prove the following theorem which improves prior results in [10] and [13]:
Let G be a 3-edge-connected simple graph with order n. If n is large and if for every edge 11.v E E(G), d(u) + d(v) 2 % - 2, then either G has a spanning eulerian subgraph or G can be contracted to the Petersen graph.
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 11, Number 3, March 1995, College Of Engineering And Computer Science, Wright State University
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 11, Number 3, March 1995, College Of Engineering And Computer Science, Wright State University
BITs and PCs Newsletter
A fourteen page newsletter created by the Wright State University College of Engineering and Computer Science that addresses the current affairs of the college.
Characterization Of The Paging Activity Of Nas Benchmark Programs On The Intel Paragon, Kuei Yu Wang, Dan C. Marinescu
Characterization Of The Paging Activity Of Nas Benchmark Programs On The Intel Paragon, Kuei Yu Wang, Dan C. Marinescu
Department of Computer Science Technical Reports
No abstract provided.
Display - A Visualization And User Interaction Interface For Parallel Simulation Environments, Edward Mascarenhas, Vernon J. Rego
Display - A Visualization And User Interaction Interface For Parallel Simulation Environments, Edward Mascarenhas, Vernon J. Rego
Department of Computer Science Technical Reports
No abstract provided.
On Pattern Occurrences In A Random Text, Ioannis Fudos, Evaggelia Pitoura, Wojciech Szpankowski
On Pattern Occurrences In A Random Text, Ioannis Fudos, Evaggelia Pitoura, Wojciech Szpankowski
Department of Computer Science Technical Reports
No abstract provided.
An Efficient And Reliable Reservation Algorithm For Mobile Transactions, Ahmed K. Elmagarmid, Jin Jing, Omran Bukhres
An Efficient And Reliable Reservation Algorithm For Mobile Transactions, Ahmed K. Elmagarmid, Jin Jing, Omran Bukhres
Department of Computer Science Technical Reports
No abstract provided.
On Asymptotics Of Certain Sums Arising In In Coding Theory, Wojciech Szpankowski
On Asymptotics Of Certain Sums Arising In In Coding Theory, Wojciech Szpankowski
Department of Computer Science Technical Reports
No abstract provided.
Defending A Computer System Using Autonomous Agents, Mark Crosbie, Eugene H. Spafford
Defending A Computer System Using Autonomous Agents, Mark Crosbie, Eugene H. Spafford
Department of Computer Science Technical Reports
No abstract provided.
Ideas For Telelearning: Www, Virtual Classroom & Cyberversity, Anupam Joshi, Elias N. Houstis, Sanjiva Weerawarana, Mikhail Attallah
Ideas For Telelearning: Www, Virtual Classroom & Cyberversity, Anupam Joshi, Elias N. Houstis, Sanjiva Weerawarana, Mikhail Attallah
Department of Computer Science Technical Reports
No abstract provided.
To Learn Or Not To Learn ...., Anupam Joshi
To Learn Or Not To Learn ...., Anupam Joshi
Department of Computer Science Technical Reports
No abstract provided.
Classical Ip And Arp Over Atm, Christoph L. Schuba, Berry Kercheval, Eugene H. Spafford
Classical Ip And Arp Over Atm, Christoph L. Schuba, Berry Kercheval, Eugene H. Spafford
Department of Computer Science Technical Reports
No abstract provided.