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16,292 Result(s)
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Article
On the fill-in when sparse vectors are orthonormalized
If the RevisedGram-Schmidt method is used for orthonormalizing a given set of sparse vectors, then it is shown that the local fill-in of non-zero elements at each stage can be easily determined. This makes it pos...
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Article
On the optimal choice of pivots for the Gaussian elimination
In this note, a cost criterion function for choosing the optimal pivot at each stage of the Gaussian elimination method is described. It takes into consideration both the fill-in and the number of arithmetical...
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Article
Parallel Poisson and Biharmonic solvers
In this paper we develop direct and iterative algorithms for the solution of finite difference approximations of the Poisson and Biharmonic equations on a square, using a number of arithmetic units in parallel...
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Article
A quasi-Newton method with sparse triple factorization for unconstrained minimization
A new quasi-Newton method for unconstrained minimization is presented. It uses sparse triple factorization of an approximation to the sparse Hessian matrix. At each step a new column and a corresponding row of...
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Chapter
The Acquisition of Procedural Knowledge through Inductive Learning
Most induction systems previously developed are concerned with the acquisition of generalized characteristic descriptions from training instances represented in either attribute tuples or first order predicate...
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Article
Two varieties of finite automaton public key cryptosystem and digital signatures
This paper gives two varieties of the public key cryptosystem in [1] which can also be used to implement digital signatures.
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Article
On the structure of finite automata of whichM′ is an (weak) inverse with delay τ
In this paper, we first give a method that for any inverse finite automaton M′ with delay τ, all inver tible finite automata with delay τ, of whichM′ is an inverse with delay τ, can be constructed; and a universa...
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Article
Maximal unifiable subsets and minimal nonunifiable subsets
We address the problem of collecting information about failures and successes while unifying a set of equations. This is relevant to the study of efficient backtracking, for which Cox used the concept of maxim...
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Article
Vector computer 757
This paper describes briefly the first large-scale vector computer system designed and produced in China—vector computer 757. The design philosophy, architecture, hardware implementation, software and performa...
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Article
On the structure of (weak) inverses of an (weakly) invertible finite automaton
In this paper, we first give a method by which, for any weakly invertible finite automatonM with delay τ, the set of all weak inverse finite automata ofM with delay τ can be constructed. We then give a method by ...
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Article
A substitution based model for the implementation of PROLOG
Since PROLOG has been chosen as the Fifth Generation Computer’s Kernal Language, it is presently one of the hottest topics among computer scientists all over the world. Recently, the implementation technique a...
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Article
On interrupt strategy from the point of view of system efficiency
Interrupt strategy of an operating system can help computer to tackle with urgent or important events, and to run programs in a reasonable fashion in order to achieve a satisfactory performance. But a sophisti...
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Article
A Tree-structured Database Machine for large relational database systems
This paper proposes a Tree-structured Database Machine (TDM), which is designed for supporting large relational database systems. The TDM aims at totally improving three level performance bottlenecks in relati...
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Article
Lens effect on synthetic image generation based on light particle theory
The synthetic image generation with the lens effect consists of two consecutive processors: the hidden-surface processor, and the focus processor. The normal ray-tracing algorithms are used in the first proces...
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Book and Conference Proceedings
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Chapter
Development of a Knowledge-Based System for Loop Diagnosis
An accident diagnostic system is developed as an attempt to provide a useful aid for the operators of an experimental loop or a nuclear power plant in the case of emergency condition. Because the current pract...
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Chapter and Conference Paper
High Resolution Spectral Analysis NDE Techniques for Flaw Characterization, Prediction and Discrimination
In this paper the feasibility of ultrasonic spectroscopy in nondestructive evaluation (NDE) is examined with the support of digital signal processing, modern spectral analysis and digital pattern recognition. ...
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Chapter and Conference Paper
Laplacian Pyramid Image Data Compression Using Vector Quantization
With the increased use of digital images in nondestructive evaluation (NDE) of materials, effective image compression and coding techniques are now much needed in NDE.
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Article
The design and implementation of an OA system ZGL1
ZGL1, an office automation system for municipal administration, is presented. It is a distributed microcomputer system based on OMNINET. Each node of it is an IBM PC/XT microcomputer with Chinese character fac...
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Chapter and Conference Paper
Knowledge acquisition on neural networks
A knowledge acquisition system is implemented on the IBM PAN (Parallel Associative Networks) system. This is an iterative process that reduces the uncertainty of a body of knowledge and information at each tim...
