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Articles 6631 - 6660 of 8612
Full-Text Articles in Entire DC Network
Broadcast Methods In The Multiswitch Point-To-Point Network, Douglas E. Comer, Victor Norman
Broadcast Methods In The Multiswitch Point-To-Point Network, Douglas E. Comer, Victor Norman
Department of Computer Science Technical Reports
No abstract provided.
On The Multisearching Problem For Hypercubes, Mikhail J. Atallah, Andreas Fabri
On The Multisearching Problem For Hypercubes, Mikhail J. Atallah, Andreas Fabri
Department of Computer Science Technical Reports
No abstract provided.
Some Experiments With A Basic Linear Algebra Routine On Distributed Memory Parallel Systems, H. Byun, Elias N. Houstis, E. A. Vavalis
Some Experiments With A Basic Linear Algebra Routine On Distributed Memory Parallel Systems, H. Byun, Elias N. Houstis, E. A. Vavalis
Department of Computer Science Technical Reports
No abstract provided.
A Fuzzy Precompensator Design For Pd Control Of Systems With Deadzones, Jong-Hwan Kim, Jong-Hwan Park, Seon-Woo Lee, Edwin K. P. Chong
A Fuzzy Precompensator Design For Pd Control Of Systems With Deadzones, Jong-Hwan Kim, Jong-Hwan Park, Seon-Woo Lee, Edwin K. P. Chong
Department of Electrical and Computer Engineering Technical Reports
Simple conventional control methods, such as PD and PID controllers, are widely used in industrial applications. Such controllers exhibit poor performance when applied to systems containing nonlinearities arising from unknown deadzones. In this report, we propose a novel fuzzy logic-based precompensation approach for controlling systems with deadzones. The control structure consists of a fuzzy logic-based precompensator followed by a conventional PD controller. Our proposed control scheme shows superior transient and steady-state performance compared to conventional PD and PID controllers. In addition, the scheme is robust to variations in deadzone nonlinearities, as well as the steady-state gain of the plant. We …
Optimal Parallel Hypercube Algorithms For Polygon Problems, Mikhail J. Atallah, Danny Z. Chen
Optimal Parallel Hypercube Algorithms For Polygon Problems, Mikhail J. Atallah, Danny Z. Chen
Department of Computer Science Technical Reports
No abstract provided.
On The Convergence Domains Of The P-Cyclic Sor, A. Hadjidimos, D. Noutsos, M. Tzoumas
On The Convergence Domains Of The P-Cyclic Sor, A. Hadjidimos, D. Noutsos, M. Tzoumas
Department of Computer Science Technical Reports
No abstract provided.
Parallel Electronic Prototyping Of Physical Objects, Poting Wu, Elias N. Houstis
Parallel Electronic Prototyping Of Physical Objects, Poting Wu, Elias N. Houstis
Department of Computer Science Technical Reports
No abstract provided.
Comparison Of Imsl/Idl With The Imsl Math Library And Exponet Graphics, Xingkang Fu, John R. Rice
Comparison Of Imsl/Idl With The Imsl Math Library And Exponet Graphics, Xingkang Fu, John R. Rice
Department of Computer Science Technical Reports
No abstract provided.
Building A Large Scale Distributed Object System For A Multilingual Programming Environment, Patrick A. Muckelbauer, Vincent F. Russo
Building A Large Scale Distributed Object System For A Multilingual Programming Environment, Patrick A. Muckelbauer, Vincent F. Russo
Department of Computer Science Technical Reports
No abstract provided.
Collaborating Pde Solvers With Interface Relaxation, Mo Mu, John R. Rice
Collaborating Pde Solvers With Interface Relaxation, Mo Mu, John R. Rice
Department of Computer Science Technical Reports
No abstract provided.
Back Cover, Purdue Road School
Back-Face Culling Applied To Collision Detection Of Polyhedra, George Vanĕček
Back-Face Culling Applied To Collision Detection Of Polyhedra, George Vanĕček
Department of Computer Science Technical Reports
No abstract provided.
Supporting Distributed Transaction Dependencies And Security Constraints: A Knowledge Base Approach, Noureddine Boudriga, Omran Bukhres
Supporting Distributed Transaction Dependencies And Security Constraints: A Knowledge Base Approach, Noureddine Boudriga, Omran Bukhres
Department of Computer Science Technical Reports
No abstract provided.
A Parallel Implementation Of Backpropagation Neural Network On Maspar Mp-1, Faramarz Valafar, Okan K. Ersoy
A Parallel Implementation Of Backpropagation Neural Network On Maspar Mp-1, Faramarz Valafar, Okan K. Ersoy
Department of Electrical and Computer Engineering Technical Reports
One of the major issues in using artificial neural networks is reducing the training and the testing times. Parallel processing is the most efficient approach for this purpose. In this paper, we explore the parallel implementation of the backpropagation algorithm with and without hidden layers [4][5] on MasPar MP-I. This implementation is based on the SIMD architecture, and uses a backpropagation model which is more exact theoretically than the serial backpropagation model. This results in a smoother convergence to the solution. Most importantly, the processing time is reduced both theoretically and experimentally by the order of 3000, due to architectural …
Classification Of Multispectral Image Data With Spatial-Temporal Context, Byeungwoo Jeon, David Landgrebe
Classification Of Multispectral Image Data With Spatial-Temporal Context, Byeungwoo Jeon, David Landgrebe
Department of Electrical and Computer Engineering Technical Reports
Pattern recognition technology has had a very important role in many fields of application including image processing, computer vision, remote sensing, etc. The advent of more powerful sensor systems should enable one to extract far more detailed information than ever before from observed data, but to realize this goal requires the development of concomitant data analysis techniques which can utilize the full potential of the observed data. This report investigates classification using spatial and/or temporal contextual information. Although contextual information has been an important and powerful data analysis clue for the human-analyst, the lack of a good contextual classification scheme …
Smooth Splines Over Irregular Meshes Built From Few Polynomial Pieces Of Low Degree, Jörg Peters
Smooth Splines Over Irregular Meshes Built From Few Polynomial Pieces Of Low Degree, Jörg Peters
Department of Computer Science Technical Reports
No abstract provided.
Multidatabase Atomic Commitment Protocols: A Taxonomy And Unified Approach, Ahmed K. Elmagarmid, James G. Mullen
Multidatabase Atomic Commitment Protocols: A Taxonomy And Unified Approach, Ahmed K. Elmagarmid, James G. Mullen
Department of Computer Science Technical Reports
No abstract provided.
Decentralized Global Transaction Management In Multidatabase Systems, Aidong Zhang, Jiansan Chen, Ahmed K. Elmagarmid, Omran Bukhres
Decentralized Global Transaction Management In Multidatabase Systems, Aidong Zhang, Jiansan Chen, Ahmed K. Elmagarmid, Omran Bukhres
Department of Computer Science Technical Reports
No abstract provided.
Symbolic Methods In Computer Graphics And Geometric Modeling (Ph.D. Thesis), Andrew Vasanth Royappa
Symbolic Methods In Computer Graphics And Geometric Modeling (Ph.D. Thesis), Andrew Vasanth Royappa
Department of Computer Science Technical Reports
No abstract provided.
Rowdlas User's Guide, H. Byun, Elias N. Houstis, E. A. Vavalis
Rowdlas User's Guide, H. Byun, Elias N. Houstis, E. A. Vavalis
Department of Computer Science Technical Reports
No abstract provided.
An Interactive X-Window Based User Interface For The Xox Solid Modeling Library, Poting Wu, Elias N. Houstis
An Interactive X-Window Based User Interface For The Xox Solid Modeling Library, Poting Wu, Elias N. Houstis
Department of Computer Science Technical Reports
No abstract provided.
New Algorithms For Minimizing The Longest Wire Length During Circuit Compaction, Susanne E. Hambrusch, Hung-Yi Tu
New Algorithms For Minimizing The Longest Wire Length During Circuit Compaction, Susanne E. Hambrusch, Hung-Yi Tu
Department of Computer Science Technical Reports
No abstract provided.
Trimming And Closure Of Constrained Surfaces, Xiangping Chen, Christoph M. Hoffmann
Trimming And Closure Of Constrained Surfaces, Xiangping Chen, Christoph M. Hoffmann
Department of Computer Science Technical Reports
No abstract provided.
Meta-State Conversion, H. G. Dietz
Meta-State Conversion, H. G. Dietz
Department of Electrical and Computer Engineering Technical Reports
In MIMD (Multiple Instruction stream, Multiple Data stream) execution, each processor has its own state. Although these states are generally considered to be independent entities, it is also possible to view the set of processor states at a particular time as single, aggregate, "Meta State." Once a program has been converted into a single finite automaton based on Meta States, only a single proram counter is needed. Hence, it is possible to duplicate the MIMD execution using SIMD (Single Instruction stream, Multiple Data stream) hardware without the ovehead of interpretation or even of having each processing element keep a copy …
A Spectral Flux Method For Solving The Boltzmann Equation, Muhammad A. Alam, Mark A. Stettler, Mark S. Lundstrom
A Spectral Flux Method For Solving The Boltzmann Equation, Muhammad A. Alam, Mark A. Stettler, Mark S. Lundstrom
Department of Electrical and Computer Engineering Faculty Publications
A spectral method for solving the Boltzmann equation by the scattering matrix approach is presented, The algorithm discussed can be used to simulate both bulk and device properties with arbitrary field profiles. Although the primary goal is to reduce the data storage problem of the scattering matrix approach, many of the concepts and mathematical properties developed may be useful for other traditional spectral methods as well.
Concentration‐Dependent Optical‐Absorption Coefficient In N‐Type Gaas, Gregory Benedict Lush, H. F. Macmillan, S. Asher, Michael R. Melloch, Mark S. Lundstrom
Concentration‐Dependent Optical‐Absorption Coefficient In N‐Type Gaas, Gregory Benedict Lush, H. F. Macmillan, S. Asher, Michael R. Melloch, Mark S. Lundstrom
Department of Electrical and Computer Engineering Faculty Publications
The doping-dependent, near-band-edge optical-absorption coefficient CY(h v) was deduced from optical transmission measurements in n-type GaAs thin films. The selenium-doped films were grown by metalorganic chemical-vapor deposition and do ed to produce room-temperature electron concentrations from 1.3 x 10” to 3.8X 1018 cm- P . The transmission measurements covered photon energies between 1.35 and 1.7 eV and were performed on double heterostructures with the substrate removed by selective etching. The results show good qualitative agreement with previous studies and good quantitative agreement, except for the heavily doped samples. For na=3.8 X 10” cme3, a( 1.42 eV> is approximately four times …
Modeling With A-Patches, Chandrajit L. Bajaj, Jindon Chen, Guoliang Xu
Modeling With A-Patches, Chandrajit L. Bajaj, Jindon Chen, Guoliang Xu
Department of Computer Science Technical Reports
No abstract provided.
Collaborative Multimedia Scientific Design In Shastra, Vinod Anupam, Chandrajit L. Bajaj
Collaborative Multimedia Scientific Design In Shastra, Vinod Anupam, Chandrajit L. Bajaj
Department of Computer Science Technical Reports
No abstract provided.
Time-Optimal Trajectories For Cooperative Multi-Manipulator Systems, Seungbin B. Moon, Shaheen Ahmad
Time-Optimal Trajectories For Cooperative Multi-Manipulator Systems, Seungbin B. Moon, Shaheen Ahmad
Department of Electrical and Computer Engineering Technical Reports
In this paper we present two schemes for planning the time-optimal trajectory for cooperative multi-manipulator system(CMMS) carrying a common object. We assume that the desired path is given and parameterizable by an arclength variable. Both approaches take into account the dynamics of the manipulators and the dynamics of the object. The first approach employs linear programming techniques, and it allows us to obtain the timeoptimal execution of the given task utilizing the maximum torque capacities of the joint motors. The second approach is a sub-time-optimal method which is computationally very efficient. In the second approach we try to divide the …
Feature Extraction And Classification Algorithms For High Dimensional Data, Chulhee Lee, David Landgrebe
Feature Extraction And Classification Algorithms For High Dimensional Data, Chulhee Lee, David Landgrebe
Department of Electrical and Computer Engineering Technical Reports
In this research, feature extraction and classification algorithms for high dimensional data are investigated. Developments with regard to sensors for Earth observation are moving in the direction of providing much higher dimensional multispectral imagery than is now possible. In analyzing such high dimensional data, processing time becomes an important factor. With large increases in dimensionality and the number of classes, processing time will increase significantly. To address this problem, a multistage classification scheme is proposed which reduces the processing time substantially by eliminating unlikely classes from further consideration at each stage. Several truncation criteria are developed and the relationship between …