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International Conference on Computational Intelligence and Security

作者： Sun Shan Ruliang Wang Sci. Math. & Stat. Coll. Guangxi Teachers Educ. Univ. Nanning China Computer and Information Engineering College Guangxi Teachers Education University Nanning Guangxi China

Based on Lyapunov-krasovskii functional method, delay ideological division. Delay first by constructing a new Lyapunov function, and then use the system range segmentation method is divided into N parts range, and int... 详细信息

ISBN: (纸本)9781467386616

关键词： Delays Stability criteria Asymptotic stability Linear matrix inequalities Power system stability Presses

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Texture synthesis based on compute unified device architecture

Texture synthesis based on compute unified device architectu...

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International Conference on Multimedia Technology

作者： Zhang, Zhifeng Wang, Wei Jin, Wenbiao Info. and Math. Dept. Hangzhou Dianzi University Hangzhou China Computer Science Dept. Chongqing Zhengda Soft. Poly. Coll. Chongqing China

ISBN: (纸本)9781424478743

Texture synthesis is important in producing computer-generated animation. In order to tackle the issue of poor efficiency of traditional serial point matching texture synthesis algorithm, we propose a parallel approach based on CUDA (Compute Unified Device Architecture) for texture synthesis. By reasonably arranging data transfer between CPU and GPU, and using GPU to do tedious and time-consuming computing, we are able to greatly improve the efficiency of texture synthesis. Testing the parallel algorithm on two systems with different level of Nvidia Graphics Cards, the experiment results indicate that the GPU parallel algorithm achieves a speed-up ratio up to 160. ©2010 IEEE.

关键词： Graphics processing unit

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Subdivision for generating NURBS curves and quadrics

Subdivision for generating NURBS curves and quadrics

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International Conference on computer Application and System Modeling (ICCASM)

作者： Li-wen Han Tao Yu Hai-yan Xi Coll. of Math. & Inf. Sci. Hebei Normal University Shijiazhuang Hebei CN College of Mathematics and Information Science Hebei Normal University Shijiazhuang China

This paper discusses the subdivision of NURBS curves and quadrics based on matrix representation of NURBS curves. Binary and ternary subdivision rules of quadratic NURBS curves are obtained, error and computation amount of subdivision curves are analyzed in detail. Moreover, by applying the subdivision method to the generatrix and ellipse, surfaces of revolution and quadratics are achieved with discrete subdivision models.

关键词： Surface reconstruction Surface topography Spline

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Reconnaissance Scan Detection Heuristics to disrupt the pre-attack information gathering

Reconnaissance Scan Detection Heuristics to disrupt the pre-...

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International Conference on Network and Service Security, N2S

作者： J. Udhayan M. Muruga Prabu V. Aravinda Krishnan R. Anitha Dept of Mathematics and Computer Applications PSG College of Technology Coimbatore India Dept of Math. & Comput. Applic. PSG Coll. of Technol. Coimbatore India PSG College of Technology Coimbatore Tamil Nadu IN

ISBN: (纸本)9781424439539

Inception stage of devastating attacks like DDoS attacks and botnet hosted attacks includes compromising numerous computers or networks over the Internet. The Port scanning tools are often used by the attackers not only to identify the vulnerable servers but also to identify the vulnerable network or vulnerable computers over the Internet. If the attackers can identify a single vulnerability then, with the use of malicious codes they can compromise that system and makes it a zombie. By compromising a group of computers the attackers can constitute the malicious botnet or zombie army. These are then used to perform a range of devastating attacks. One possible solution to curb the zombie army or malicious botnet is by detecting and blocking or dropping the reconnaissance scan, otherwise port scan. Numerous port scanning techniques are available today. To detect them all, one single algorithm is not sufficient so we derived a set of heuristics to detect the port scan traffic, even the crafty ones.

关键词： Reconnaissance Internet computer hacking computer crime IP networks computer networks Military computing computer applications Educational institutions Probes

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Decision Making Method Based on Projection of Hybrid Vector

Decision Making Method Based on Projection of Hybrid Vector

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International Conference on Fuzzy Systems and Knowledge Discovery (FSKD)

作者： Congjun Rao Huanbin Liu Chuanfeng Li Huanggang Normal University Huanggang Hubei CN Coll. of Math. & Inf. Sci. Huanggang Normal Univ. Huanggang Institute of Systems Engineering Huazhong University of Science and Technology Wuhan China

The problem of hybrid multi-attribute decision making with real number, interval number and fuzzy number, is studied. First of all, the hybrid vector and the projection of hybrid vector are defined, then a new decision making method based on projection of hybrid vector is presented. Finally, an application decision making example is given to demonstrate the feasibility and rationality of this new method.

关键词： Decision making Fuzzy systems Educational institutions math.matics Information science Systems engineering and theory

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Grid computing in the undergraduate classroom topics, exercises and experiences 05

Grid computing in the undergraduate classroom topics, exerci...

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IEEE/ACM International Symposium on Cluster Computing and the Grid (CCGRID)

作者： J. Machea A. Apon Dept. of Math. & Comput. Sci. Lewis & Clark Coll. Portland OR USA Computer Science and Computer Engineering University of Arkansas Fayetteville Arkansas USA

ISBN: (纸本)9780780390744

Grid protocols and technologies arc being adopted in a wide variety of academic, government, and industrial environments, and there is a growing body of research-oriented literature in grid computing. However, there is a need for educational material that is suitable for classroom use. This paper describes our topics, exercises and experiences of teaching grid computing courses in the fall semester, 2004. to undergraduate computer science students at Lewis & Clark coll.ge and to a mix of undergraduate and graduate computer science students at the University of Arkansas. We identify a set of six knowledge areas that can help to structure course material in grid computing. In conclusion, we recommend that a grid computing course cover, or have as prerequisites, material on (1) remote method invocation and (2) security and certificates. Finally, student comments indicate the need for a series of grid programming exercises of increasing complexity.

关键词： Grid computing computer science Educational institutions Protocols computer industry Education Hardware Curriculum development Operating systems Java

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A new method of information extraction from PDF files

A new method of information extraction from PDF files

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International Conference on Machine Learning and Cybernetics (ICMLC)

作者： Fang Yuan Bo Lu College of Information Science and Engineering Northeastern University Shenyang China College of Mathematics and Computer Science Hebei University Baoding P.R. China Hebei University Baoding Hebei CN Coll. of Math. & Comput. Sci. Hebei Univ. Baoding China

With the rapid increase of the PDF files in Internet, how to manage and search PDF files efficiently and quickly has become an urgent problem to be solved. The most important step of solving this problem is to extract information from the PDF files. This paper presents a new method for extracting information from PDF files. It first parses PDF files to get text and format information and injects tags into text information to transform it into semi-structured text, and finally, one pattern match algorithm based on tree model is applied to obtain the solution. A further experiment proved this method was effective.

关键词： Data mining Pattern matching Educational institutions Internet math.matics computer science Information science Electronic mail Engineering management Information technology

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Classification of nonoscillatory solutions of second order self-adjoint neutral difference equations

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Journal of Applied math.matics and Computing 2004年第1-2期14卷 237-249页

作者： Liu, Yujun Liu, Zhaoshuang Zhang, Zhenguo Coll. of Math./Info. of Science Hebei Normal University Shijiazhuang 050016 China

Consider the second order self-adjoint neutral difference equation of form Δ(an|Δ(xn - pnx τ;n)|αsgnΔ(xn - p nxτn)) + f(n, xgn) = 0. In this paper, we will give the classification of nonoscillatory solutions of the above equation;and by the fixed point theorem, we present some existence results for some kinds of nonoscillatory solutions of the equation.

关键词： Classification Neutral term Nonoscillation Self-adjoint

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On the independence of fuzzy vectors

On the independence of fuzzy vectors

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Proceedings of 2004 International Conference on Machine Learning and Cybernetics

作者： Liu, Yan-Kui Zhao, Miao Coll. of Math. and Computer Science Hebei University Baoding 071002 China

ISBN: (纸本)0780384032

Fuzzy variable is a function from a possibility space to the real line. By analogy of the independence of random variables, there are similar terms for fuzzy variables such as unrelated fuzzy variables, noninteractive fuzzy variables, and independent fuzzy variables. The purpose of this work is to discuss the relations among these terms. Toward this end, the work first defines the marginal possibility distributions of a fuzzy vector, and then gives a simple approach to define the independent fuzzy variables. After that, the equivalence of unrelated, noninteractive, and independent fuzzy variables are proved in the framework of possibility theory.

关键词： Fuzzy sets

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Multicriteria optimization problems in fuzzy random decision systems

Multicriteria optimization problems in fuzzy random decision...

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Proceedings of 2004 International Conference on Machine Learning and Cybernetics

作者： Liu, Yan-Kui Chen, Yan-Ju Coll. of Math. and Computer Science Hebei University Baoding 071002 China

ISBN: (纸本)0780384032

This paper first presents multicriteria fuzzy random expected value models via expected value operators, and variance of fuzzy random variables. Then, three types of minimization (maximization) fuzzy random expected value models are built based on a decision-maker's preference or intention. After that, the interconnections among the three types of optimization problems are discussed. At the end of the paper, a numerical example is provided to illustrate the modeling ideas of the proposed optimization problems.

关键词： Decision support systems

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