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Articles 12841 - 12870 of 13650
Full-Text Articles in Entire DC Network
Xellpack: An Interactive Problem Solving Environment For Elliptic Partial Differential Equations, Jophn P. Bonomo, Wayne R. Dyksen
Xellpack: An Interactive Problem Solving Environment For Elliptic Partial Differential Equations, Jophn P. Bonomo, Wayne R. Dyksen
Department of Computer Science Technical Reports
No abstract provided.
Effects Of Autonomy On Maintaining Global Serializability In Heterogeneous Database Systems, W. Du, Ahmed K. Elmagarmid, Y. Leu, S. F. Ostermann
Effects Of Autonomy On Maintaining Global Serializability In Heterogeneous Database Systems, W. Du, Ahmed K. Elmagarmid, Y. Leu, S. F. Ostermann
Department of Computer Science Technical Reports
No abstract provided.
Quasi Serializability: A Correctness Criterion For Interbase, Ahmed K. Elmagarmid
Quasi Serializability: A Correctness Criterion For Interbase, Ahmed K. Elmagarmid
Department of Computer Science Technical Reports
No abstract provided.
Distributed Operation Language For Specification And Processing Of Multidatabase Applications, Marek Rusinkiewicz, Kanchei Loa, Ahmed K. Elmagarmid
Distributed Operation Language For Specification And Processing Of Multidatabase Applications, Marek Rusinkiewicz, Kanchei Loa, Ahmed K. Elmagarmid
Department of Computer Science Technical Reports
No abstract provided.
Non-Algorithmic Load Imbalance Effects For Domain Decomposition Methods On A Hypercube, Dan C. Marinescu, John R. Rice
Non-Algorithmic Load Imbalance Effects For Domain Decomposition Methods On A Hypercube, Dan C. Marinescu, John R. Rice
Department of Computer Science Technical Reports
No abstract provided.
Quantum Transport With Dissipation: Linear And Non-Linear Response, Supriyo Datta, Michael J. Mclennan
Quantum Transport With Dissipation: Linear And Non-Linear Response, Supriyo Datta, Michael J. Mclennan
Department of Electrical and Computer Engineering Technical Reports
We present a quantum transport equation derived under the simplifying assumption that the inelastic scattering is caused by uncorrelated point scatterers, such as magnetic impurities. While this assumption is not always realistic, we believe that the model can be used to describe much of the essential physics of quantum transport in mesoscopic systems. This assumption allows us to write a quantum transport equation that involves only the diagonal elements of the density matrix which we use to define a distribution function f(r; E). The kernel of this integral equation is calculated from the Schrodinger equation and contains all quantum interference …
Multilevel Asynchronous Iteration For Pdes, Dan C. Marinescu, John R. Rice
Multilevel Asynchronous Iteration For Pdes, Dan C. Marinescu, John R. Rice
Department of Computer Science Technical Reports
No abstract provided.
Parallel (//) Ellpack: An Expert System For Parallel Processing Of Partial Differential Equations, Elias N. Houstis, John R. Rice, T. S. Papatheodorou
Parallel (//) Ellpack: An Expert System For Parallel Processing Of Partial Differential Equations, Elias N. Houstis, John R. Rice, T. S. Papatheodorou
Department of Computer Science Technical Reports
No abstract provided.
A White Paper On High-Speed Network Architecture, Douglas E. Comer, John M. Steele, Raj Yavatkar
A White Paper On High-Speed Network Architecture, Douglas E. Comer, John M. Steele, Raj Yavatkar
Department of Computer Science Technical Reports
No abstract provided.
Imacs Conference On Expert Systems For Numerical Computing, Elias N. Houstis
Imacs Conference On Expert Systems For Numerical Computing, Elias N. Houstis
Department of Computer Science Technical Reports
No abstract provided.
The Internet Worm Program: An Analysis, Eugene H. Spafford
The Internet Worm Program: An Analysis, Eugene H. Spafford
Department of Computer Science Technical Reports
No abstract provided.
Experimental Evaluation Of Simd Pe-Mask Generation And Hybrid Mode Parallel Computing On Multi- Microprocessor Systems, Samuel A. Fineberg, Thomas L. Casavant, Howard Jay Siegel
Experimental Evaluation Of Simd Pe-Mask Generation And Hybrid Mode Parallel Computing On Multi- Microprocessor Systems, Samuel A. Fineberg, Thomas L. Casavant, Howard Jay Siegel
Department of Electrical and Computer Engineering Technical Reports
Experimentation aimed at determining the potential efficiency of multi-microprocessor designs of SIMD machines is reported. The experimentation is based on timing measurements made on the PASM system prototype at Purdue. The application used to measure and evaluate this phenomenon was bitonic sorting, which has feasible solutions in both SIMD and MIMD modes of computation, as well as in at least two hybrids of SlMD and MIMD modes. Bitonic sorting was coded in these four ways and experiments were performed that examine the tradeoffs among all of these modes. Also, a new PE mask generation scheme for multiple "of-the-shelf" microprocessor based …
Applications Of Simple Markov Models To Computer Vision, Manoel F. Tenorio, Craig W. Codrington
Applications Of Simple Markov Models To Computer Vision, Manoel F. Tenorio, Craig W. Codrington
Department of Electrical and Computer Engineering Technical Reports
In this report we advocate the use of computationally simple algorithms for computer vision, operating in parallel. The design of these algorithms is based on physical constraints present in the image and object spaces. In particular, we discuss the design, implementation, and performance of a Markov Random Field based algorithm for low level segmentation. In addition to having a simple and fast implementation, the algorithm is flexible enough to allow intensity information to be fused with motion and edge information from other sources.
Model For An Intelligent Operating System For Executing Tasks On A Reconfigurable Parallel Architecture, C. Henry Chu, Edward J. Delp, Leah H. Jamieson, Howard Jay Siegel, Frank J. Weil, Andrew B. Whinston
Model For An Intelligent Operating System For Executing Tasks On A Reconfigurable Parallel Architecture, C. Henry Chu, Edward J. Delp, Leah H. Jamieson, Howard Jay Siegel, Frank J. Weil, Andrew B. Whinston
Department of Electrical and Computer Engineering Technical Reports
Parallel processing is one approach to achieve the large computational processing capabilities required by many real-time computing tasks. One of the problems that must be addressed in the use of reconfigurable multiprocessor systems is matching the architecture configuration to the algorithms to be executed. This paper presents a conceptual model that explores the potential of artificial intelligence tools, specifically expert systems, to design an Intelligent Operating System for multiprocessor systems. The target task is the implementation of image understanding systems on multiprocessor architectures. PASM is used as an example multiprocessor. The Intelligent Operating System concepts developed here could also be …
An Event-Action Model And Associated Architecture For Monitoring Parallel And Distributed Systems, Dan C. Marinescu, James E. Lumpp, Thomas L. Casavant, Howard Jhay Siegel
An Event-Action Model And Associated Architecture For Monitoring Parallel And Distributed Systems, Dan C. Marinescu, James E. Lumpp, Thomas L. Casavant, Howard Jhay Siegel
Department of Computer Science Technical Reports
No abstract provided.
Efficient Algorithms For Hybrid Data/Voice Transmissions, Andrzej Kusiuk, Wojciech Szpankowski
Efficient Algorithms For Hybrid Data/Voice Transmissions, Andrzej Kusiuk, Wojciech Szpankowski
Department of Computer Science Technical Reports
No abstract provided.
Output-Sensitive Hidden Surface Elimination For Rectangles, Mikhail J. Atallah, Michael T. Goodrich
Output-Sensitive Hidden Surface Elimination For Rectangles, Mikhail J. Atallah, Michael T. Goodrich
Department of Computer Science Technical Reports
No abstract provided.
Semi-Automatic Process Decomposition For Non-Shared Memory Machines, Charles Koelbel, Piyush Mehrotra
Semi-Automatic Process Decomposition For Non-Shared Memory Machines, Charles Koelbel, Piyush Mehrotra
Department of Computer Science Technical Reports
No abstract provided.
A Formalism For Describing Data Distribution, Charles Koelbel
A Formalism For Describing Data Distribution, Charles Koelbel
Department of Computer Science Technical Reports
No abstract provided.
Analysis Of A Two Level Asynchronous Algorithm For Pdes, John R. Rice, Dan C. Marineseu
Analysis Of A Two Level Asynchronous Algorithm For Pdes, John R. Rice, Dan C. Marineseu
Department of Computer Science Technical Reports
No abstract provided.
A User Guide To The Algorithm Mapper: A System For Modeling And Evaluating Parallel Applications/Architecture Pairs, C. E. Houstis, Elias N. Houstis, John R. Rice, S. M. Samartizis, D.L. Alexandrakis
A User Guide To The Algorithm Mapper: A System For Modeling And Evaluating Parallel Applications/Architecture Pairs, C. E. Houstis, Elias N. Houstis, John R. Rice, S. M. Samartizis, D.L. Alexandrakis
Department of Computer Science Technical Reports
No abstract provided.
On-Line Object Feature Extraction For Multispectral Scene Representation, Hassan Ghassemian, David Landgrebe
On-Line Object Feature Extraction For Multispectral Scene Representation, Hassan Ghassemian, David Landgrebe
Department of Electrical and Computer Engineering Technical Reports
This thesis investigates a new on-line unsupervised object-feature extraction method that reduces the complexity and costs associated with the analysis of the multispectral image data and the data transmission, storage, archival and distribution as well. Typically in remote sensing a scene is represented by the spatially disjoint pixel-oriented features. It would appear possible to reduce data redundancy by an on-line unsupervised object-feature extraction process, where combined spatial-spectral object's features, rather than the original pixel-features, are used for multispectral scene representation. The ambiguity in the object detection process can be reduced if the spatial dependencies, which exist among the adjacent pixels, …
Spectral Feature Design In High Dimensional Multispectral Data, Chih-Chien Thomas Chen, David A. Landgrebe
Spectral Feature Design In High Dimensional Multispectral Data, Chih-Chien Thomas Chen, David A. Landgrebe
Department of Electrical and Computer Engineering Technical Reports
The High resolution imaging Spectrometer (HIRIS) is designed to acquire images simultaneously in 192 spectral bands in the 0.4-2,5 μm wavelength region. It will make possible the collection of essentially continuous reflectance spectra at a spectral resolution sufficient to extract significantly enhanced amounts of information from return signals as compared to existing systems. By effectively utilizing these signals, direct identification of the parameters of species can be achieved and their subtle changes can also be observed and measured. The advantages of such high dimensional data come at a cost of increased system and data complexity. For example, since the finer …
Impedance Measurements Of Underground Cable Systems, Robert N. Bruce
Impedance Measurements Of Underground Cable Systems, Robert N. Bruce
Department of Electrical and Computer Engineering Technical Reports
This paper documents a series of experimental impedance measurements made on underground residential distribution (URD) power components which included 15 KV class power cables, elbow connectors and a padmount transformer. The measurements were performed at high frequency, i.e. the MHz frequency region. The purpose was to study how the impedance of these devices behaves at high frequencies. Two port transmission parameters and network analysis were used to study the characteristics of these types of systems at these high frequencies.
Experimenal Evaluation Of Concurrent Checkpointing And Rollback-Recovery Algorithms, Bharat Bhargava, Pei-Jyun Leu, Shy-Renn Lian
Experimenal Evaluation Of Concurrent Checkpointing And Rollback-Recovery Algorithms, Bharat Bhargava, Pei-Jyun Leu, Shy-Renn Lian
Department of Computer Science Technical Reports
No abstract provided.
Harmonic Impact Of Rectifiers Served By Unbalanced Three-Phase Sources, Kraig J. Olejniczak
Harmonic Impact Of Rectifiers Served By Unbalanced Three-Phase Sources, Kraig J. Olejniczak
Department of Electrical and Computer Engineering Technical Reports
A converter is a rectifier or inverter which is intended to transfer electrical energy between AC and DC busses. A common industrial converter usually employs the familiar Graetz bridge configuration and usually has a rating in the kilowatt through lower megawatt range. The operation of such a device is nominally in the balanced three-phase mode in which the phase currents are nonsinusoidal. The Fourier series components of these currents, or harmonics, have been studied extensively, but relatively little has been done in the unbalanced operating mode. The principal goal of this research is to examine how unbalance in magnitude and …
Flows: Performance Guarantees In Best Effort Delivery Systems, Douglas E. Comer, Rajendra Yavatkar
Flows: Performance Guarantees In Best Effort Delivery Systems, Douglas E. Comer, Rajendra Yavatkar
Department of Computer Science Technical Reports
No abstract provided.
A Generic Algorithm For Transaction Processing During Network Partitioning, Bharat Bhargava, Shirley Browne
A Generic Algorithm For Transaction Processing During Network Partitioning, Bharat Bhargava, Shirley Browne
Department of Computer Science Technical Reports
No abstract provided.
Engineering The Object-Relation Database Model In O-Raid, Bharat Bhargava, Prasun Dewan, Stephen Leung
Engineering The Object-Relation Database Model In O-Raid, Bharat Bhargava, Prasun Dewan, Stephen Leung
Department of Computer Science Technical Reports
No abstract provided.
Seth: A Quorum-Based Replicated Database System For Experimentation With Failures, Bharat Bhargava, Abdelsalam Helal, Jagannathan Srinivasan
Seth: A Quorum-Based Replicated Database System For Experimentation With Failures, Bharat Bhargava, Abdelsalam Helal, Jagannathan Srinivasan
Department of Computer Science Technical Reports
No abstract provided.