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- Department of Computer Science Technical Reports (80)
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- Department of Electrical and Computer Engineering Faculty Publications (3)
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Articles 1 - 30 of 153
Full-Text Articles in Entire DC Network
Unix And Security: The Influences Of History, Eugene H. Spafford
Unix And Security: The Influences Of History, Eugene H. Spafford
Department of Computer Science Technical Reports
No abstract provided.
Three Letters On Computer Security And Society, Eugene H. Spafford
Three Letters On Computer Security And Society, Eugene H. Spafford
Department of Computer Science Technical Reports
No abstract provided.
User Authentication And Related Topics: An Annotated Bibliography, Eugene H. Spafford, Stephen A. Weeber
User Authentication And Related Topics: An Annotated Bibliography, Eugene H. Spafford, Stephen A. Weeber
Department of Computer Science Technical Reports
No abstract provided.
The Combinatorics Of Algebraic Splines, Chanderjit L. Bajaj
The Combinatorics Of Algebraic Splines, Chanderjit L. Bajaj
Department of Computer Science Technical Reports
No abstract provided.
Visualization Of Four Dimensional Space And Its Applications (Ph.D. Thesis), Jianhua Zhou
Visualization Of Four Dimensional Space And Its Applications (Ph.D. Thesis), Jianhua Zhou
Department of Computer Science Technical Reports
No abstract provided.
Methodologies For Voltage Contingency Ranking, James Matthew Kulaga
Methodologies For Voltage Contingency Ranking, James Matthew Kulaga
Department of Electrical and Computer Engineering Technical Reports
Contingency studies in interconnected electric power systems are performed to assess the capability of a system to withstand disturbances caused by equipment outages and other factors, and are relevant to the area of power system security. Due to the large size and complexity of modern power systems, accurate techniques for measuring the effect of line contingencies are often time consuming and impose a heavy computational burden. Thus, ranking methods are used to define a subset of the most severe contingencies to be studied in full detail. Contingencies are classified into voltage contingencies and power contingencies; the term voltage contingency refers …
The Use Of Non-Cylindrically-Symmetric Sources In The Holographic Measurement Of Plane Wave Reflection Coefficients, J Stuart Bolton, Ziqiang Hu
The Use Of Non-Cylindrically-Symmetric Sources In The Holographic Measurement Of Plane Wave Reflection Coefficients, J Stuart Bolton, Ziqiang Hu
Publications of the Ray W. Herrick Laboratories
No abstract provided.
Optimal Parallel Algorithms For Periods, Palindromes And Squares (Preliminary Version), Alberto Apostolico, Dany Breslauer, Zvi Galil
Optimal Parallel Algorithms For Periods, Palindromes And Squares (Preliminary Version), Alberto Apostolico, Dany Breslauer, Zvi Galil
Department of Computer Science Technical Reports
No abstract provided.
Gcache: A Generalized Caching Mechanism, Douglas E. Comer, Shawn Ostermann
Gcache: A Generalized Caching Mechanism, Douglas E. Comer, Shawn Ostermann
Department of Computer Science Technical Reports
No abstract provided.
An Organization Of Sparse Gauss Elimination For Solving Pdes On Distributed Memory Machines, Mo Mu, John R. Rice
An Organization Of Sparse Gauss Elimination For Solving Pdes On Distributed Memory Machines, Mo Mu, John R. Rice
Department of Computer Science Technical Reports
No abstract provided.
How To Count Quickly And Accurately: A Unified Analysis Of Probabilistic Counting And Other Related Problems, Peter Kirschenhofer, Helmut Prodinger, Wojciech Szpankowski
How To Count Quickly And Accurately: A Unified Analysis Of Probabilistic Counting And Other Related Problems, Peter Kirschenhofer, Helmut Prodinger, Wojciech Szpankowski
Department of Computer Science Technical Reports
No abstract provided.
A Declarative View Of Inheritance In Logic Programming, M. Bugliesi
A Declarative View Of Inheritance In Logic Programming, M. Bugliesi
Department of Computer Science Technical Reports
No abstract provided.
Unstructured Scheduling In Parallel Pde Sparse Solvers On Distributed Memory Machines, Mo Mu, John R. Rice
Unstructured Scheduling In Parallel Pde Sparse Solvers On Distributed Memory Machines, Mo Mu, John R. Rice
Department of Computer Science Technical Reports
No abstract provided.
Neural Networks For Constrained Optimization Problems, Walter E. Lillo, Stefen Hui, Stanislaw H. Zak
Neural Networks For Constrained Optimization Problems, Walter E. Lillo, Stefen Hui, Stanislaw H. Zak
Department of Electrical and Computer Engineering Technical Reports
This paper is concerned with utilizing neural networks and analog circuits to solve constrained optimization problems. A novel neural network architecture is proposed for solving a class of nonlinear programming problems. The proposed neural network, or more precisely a physically realizable approximation, is then used to solve minimum norm problems subject to linear constraints. Minimum norm problems have many applications in various areas, but we focus on their applications to the control of discrete dynamic processes. The applicability of the proposed neural network is demonstrated on numerical examples.
Generalized 'Probe' Model For Arbitrary Dephasing Mechanisms, Supriyo Datta
Generalized 'Probe' Model For Arbitrary Dephasing Mechanisms, Supriyo Datta
Department of Electrical and Computer Engineering Technical Reports
It has been shown earlier that in the linear response regime, dephasing by point scatterers (within the self-consistent Born approximation) can be visualized in terms of point voltage probes attached to each space and energy coordinate (r,E). In this paper we derive a generalized linear response equation starting from the non-equilibrium Green function formalism that can be used to describe any dephasing process in any approximation. The dephasing is characterized by a 'reservoir function' which can be evaluated from the self-energy. The linear response equation can be visualized in terms of voltage probes but with individual probes connected to each …
Generalized 'Probe' Model For Arbitrary Dephasing Mechanisms, Supriyo Datta
Generalized 'Probe' Model For Arbitrary Dephasing Mechanisms, Supriyo Datta
Department of Electrical and Computer Engineering Technical Reports
It has been shown earlier that in the linear response regime, dephasing by point scatterers (within the self-consistent Born approximation) can be visualized in terms of point voltage probes attached to each space and energy coordinate (r,E). In this paper we derive a generalized linear response equation starting from the non-equilibrium Green function formalism that can be used to describe any dephasing process in any approximation. The dephasing is characterized by a ‘reservoir function’ which can be evaluated from the self-energy. The linear response equation can be visualized in terms of voltage probes but with individual probes connected to each …
Neural Networks For Constrained Optimization Problems, Walter E. Lillo, Stefen Hui, Stanislaw H. Zak
Neural Networks For Constrained Optimization Problems, Walter E. Lillo, Stefen Hui, Stanislaw H. Zak
Department of Electrical and Computer Engineering Technical Reports
This paper is concerned with utilizing neural networks and analog circuits to solve constrained optimization problems. A novel neural network architecture is proposed for solving a class of nonlinear programming problems. The proposed neural network, or more precisely a physically realizable approximation, is then used to solve minimum norm problems subject to linear constraints. Minimum norm problems have many applications in various areas, but we focus on their applications to the control of discrete dynamic processes. The applicability of the proposed neural network is demonstrated on numerical examples
Quadratic Spline Collocation Methods For Elliptic Partial Differential Equations, Christina C. Christara
Quadratic Spline Collocation Methods For Elliptic Partial Differential Equations, Christina C. Christara
Department of Computer Science Technical Reports
No abstract provided.
Population Trends For Indiana Counties, Cities, And Towns 1970–1990, Herpicc
Population Trends For Indiana Counties, Cities, And Towns 1970–1990, Herpicc
Indiana Local Technical Assistance Program (LTAP) Publications
This report presents tabulation and rankings that permit a direct comparison of population growth and population totals for city, town, and county units to assist officials in making amore comprehensive interpretation of the 1990 census figures.
Uniform System For Accident Reporting, Jorge A. Vanegas
Uniform System For Accident Reporting, Jorge A. Vanegas
Indiana Local Technical Assistance Program (LTAP) Publications
This report presents the results of Project 91-08 Task 5, Project 1, Part III: Uniform System for Accident Reporting.
Output Feedback Variable Structure Controllers And State Estimators For Uncertain Dynamic Systems, Stanislaw H. Zak, Stefen Hui
Output Feedback Variable Structure Controllers And State Estimators For Uncertain Dynamic Systems, Stanislaw H. Zak, Stefen Hui
Department of Electrical and Computer Engineering Technical Reports
In this paper we propose a new class of output feedback variable structure controllers and state estimators (observers) for uncertain dynamic systems with hounded uncertainties. No statistical information about the uncertain elements is assumed. A variable structure systems (VSS) approach together with the geometric approach to the analysis and synthesis of system zeros are employed in the synthesis of the proposed output feedback controllers and state estimators. The role of system zeros in the output feedback stabilization and state estimation, using the VSS approach, is discussed. Numerical examples included illustrate the feasibility of the proposed stabilization and state estimation schemes.
Minimizing Quotient Space Norms Using Penalty Functions, Stefen Hui, Walter E. Lillo, Stanislaw H. Zak
Minimizing Quotient Space Norms Using Penalty Functions, Stefen Hui, Walter E. Lillo, Stanislaw H. Zak
Department of Electrical and Computer Engineering Technical Reports
A penalty function method approach is proposed to solve the general problem of quotient space norms minimization. A new class of penalty functions is introduced which allows one to transform constrained optimization problems of quotient space norms minimization by unconstrained optimization problems. The sharp bound on the weight parameter is given for which constrained and unconstrained problems are equivalent. Also a computationally efficient bound on the weight parameter is given. Numerical examples and computer simulations illustrate the results obtained.
Electronic Skeletons: Modeling Skeletal Structures With Piecewise Algebraic Surfaces, Chanderjit L. Bajaj
Electronic Skeletons: Modeling Skeletal Structures With Piecewise Algebraic Surfaces, Chanderjit L. Bajaj
Department of Computer Science Technical Reports
No abstract provided.
Portable 3d Graphics In A Heterogeneous Distributed Environment, Vinod Anupam, Chanderjit L. Bajaj, Malcolm C. Fields, Andrew V. Royappa
Portable 3d Graphics In A Heterogeneous Distributed Environment, Vinod Anupam, Chanderjit L. Bajaj, Malcolm C. Fields, Andrew V. Royappa
Department of Computer Science Technical Reports
No abstract provided.
Computer Vision, Descriptive Geometry, And Classical Mechanics, Christoph M. Hoffmann
Computer Vision, Descriptive Geometry, And Classical Mechanics, Christoph M. Hoffmann
Department of Computer Science Technical Reports
No abstract provided.
The Shastra Distributed And Collaborative Geometric Design Environment, Vinod Anupam, Chanderjit L. Bajaj, Andrew V. Royappa
The Shastra Distributed And Collaborative Geometric Design Environment, Vinod Anupam, Chanderjit L. Bajaj, Andrew V. Royappa
Department of Computer Science Technical Reports
No abstract provided.
How To Compute Offsets Without Self-Intersection, Ching-Shoei Chiang, Christoph M. Hoffmann, Robert E. Lynch
How To Compute Offsets Without Self-Intersection, Ching-Shoei Chiang, Christoph M. Hoffmann, Robert E. Lynch
Department of Computer Science Technical Reports
No abstract provided.
On Solving Constrained Optimization Problems With Neural Networks : A Penalty Function Method Approach, Walter E. Lillo, Mei Heng Loh, Stefen Hui, Stanislaw H. Zak
On Solving Constrained Optimization Problems With Neural Networks : A Penalty Function Method Approach, Walter E. Lillo, Mei Heng Loh, Stefen Hui, Stanislaw H. Zak
Department of Electrical and Computer Engineering Technical Reports
This paper is concerned with utilizing analog circuits to solve various linear and nonlinear programming problems. The dynamics of these circuits are analyzed. Then, the previously proposed circuit implementations for solving optimization problems are examined. A new nonlinear programming network and its circuit implementation is then introduced which utilizes the nonlinearities to eliminate the problems encountered in previous circuit implementations.
Data Structures And Sparsity In A Digital Simulation Of An Hvdc Link, Mark Timothy Luehmann
Data Structures And Sparsity In A Digital Simulation Of An Hvdc Link, Mark Timothy Luehmann
Department of Electrical and Computer Engineering Technical Reports
An earlier algorithm for the detailed simulation of the High Voltage Direct Current (HVDC) link using the tensor approach was modified to improve the runtime speed. The runtime, approximately eleven percent that of the original algorithm, was improved by employing sparsity techniques, restructuring the state matrix, and condensing subroutines. The readability of the code was accomplished by a modular programming approach. This research was done for a two-terminal simulation, but could be expanded and modified to include multiterminal simulations.
Plant Growth Regulation: A Viable Concept In Aquatic Plant Management?, C. A. Lembi, M. D. Netherland
Plant Growth Regulation: A Viable Concept In Aquatic Plant Management?, C. A. Lembi, M. D. Netherland
IWRRC Technical Reports
No abstract provided.