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International Conference on Fuzzy systems and Knowledge Discovery (FSKD)

作者： Yalin Zheng Guang Yang Jing Zheng Jinsheng Xing State Key Laboratory for Intelligent Technology and Systems Department of Automation Faculty of Information Science and Technology Tsinghua University Beijing China Research Center of Intelligent Information Technology Department of Computer Science and Technology Faculty of Software Dongguan University of Science and Technology Dongguan China Research Center of Dongguan Economy Department of Economy and Commerce Dongguan University of Science and Technology Dongguan China Faculty of Mathematics and Computer Science Shanxi Normal University Linfen China Research Center of System Engineering Faculty of Electronic and Information Engineering Xi'an Jiaotong University Xi'an China

In this paper, we propose the basic framework of point- wise topological logic on completely distributive lattices and explore approximate reasoning in it. The logic of this paper is based on pointwise characterization, therefore the pointwise conception is pervasive. We explore approximate reasoning in abstract logical framework Fl on completely distributive lattice L. We propose the structure of point- wise topological logic F TL , the structure of matching function sigma. and the structure of matching neighborhood group. We investigate approximate reasoning in pointwise topological logic F TL with matching function sigma, develop pointwise topological algorithm of simple approximate reasoning, introduce the essential characteristics of this scheme.

关键词： Lattices Fuzzy logic computer science Knowledge engineering Fuzzy systems Information technology Laboratories Intelligent systems Automation Information science

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Distributed transaction semantic for Binary Vote Assignment Grid

Distributed transaction semantic for Binary Vote Assignment ...

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International Conference on Electrical Engineering/Electronics, computer, Telecommunications and Information technology, ECTI-CON

作者： A. Noraziah M. Mat Deris R. Norhayati M.Y.M. Saman Faculty of Computer System & Software Engineering Universiti Malaysia Pahang Kuantan Pahang Malaysia Faculty of Information & Technology Multimedia Universiti Tun Hussein Onn Malaysia Batu Pahat Malaysia Faculty chemical Engineering & Natural Resources Universiti Malaysia Pahang Kuantan Pahang Malaysia Faculty of Science & Technology University in Malaysia for Engineering Kuala Terengganu Terengganu Malaysia

This paper presents a new design to manage transaction and replication for distributed systems. First, we recall the binary vote assignment grid (BVAG) model that imposes neighbours binary vote assignment to its logical grid structure on replicated data copies. Based on this model, we extend our work to design the distributed transaction semantic in order to manage BVAG transaction both in normal and failure cases. We present an implementation of the system. The proposed distributed transaction semantic shows that the system preserves the data consistency and support advance fault-tolerant through synchronization approach.

关键词： Servers Distributed databases Peer to peer computing Availability Synchronization computers Linux

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Intelligent Web Caching Using Neurocomputing and Particle Swarm Optimization Algorithm

Intelligent Web Caching Using Neurocomputing and Particle Sw...

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Asia International Conference on Modeling & Simulation

作者： Sarina Sulaiman Siti Mariyam Shamsuddin Fadni Forkan Ajith Abraham Soft Computing Research Group Faculty of Computer Science and Information System Universiti Teknologi Malaysia Skudai Johor Malaysia Centre for Quantifiable Quality of Service in Communication Systems Norwegian University of Science and Technology Trondheim Norway

Web caching is a technology for improving network traffic on the internet. It is a temporary storage of Web objects (such as HTML documents) for later retrieval. There are three significant advantages to Web caching; reduced bandwidth consumption, reduced server load, and reduced latency. These rewards have made the Web less expensive with better performance. In this paper, an Artificial Intelligence (AI) approach is introduced for Web caching to determine the type of Web request, either to cache or not, and to optimize the performance on Web cache. Two methods are employed in this study; Artificial Neural Network (ANN), and Particle Swarm Optimization (PSO). The experimental results have revealed that some improvements have been accomplished compared to the existing technique in terms of Web cache size.

关键词： Particle swarm optimization Artificial intelligence Artificial neural networks Telecommunication traffic IP networks HTML Bandwidth Network servers Web server Delay

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Web caching and prefetching: What, why, and how?

Web caching and prefetching: What, why, and how?

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International Symposium on Information technology, ITSim

作者： Sarina Sulaiman Siti Mariyam Shamsuddin Ajith Abraham Shahida Sulaiman Soft Computing Research Group Faculty of Computer Science and Information System Universiti Teknologi Malaysia Johor Malaysia Centre for Quantifiable Quality of Service in Communication Systems Norwegian University of Science and Technology Trondheim Norway School of Computer Sciences Universiti Sains Islam Malaysia Penang Malaysia

The demand for Internet content rose dramatically in recent years. Servers became more and more powerful and the bandwidth of end user connections and backbones grew constantly during the last decade. Nevertheless users often experience poor performance when they access web sites or download files. Reasons for such problems are often performance problems which occur directly on the servers (e.g. poor performance of server-side applications or during flash crowds) and problems concerning the network infrastructure (e.g. long geographical distances, network overloads, etc.). Web caching and prefetching have been recognized as the effective schemes to alleviate the service bottleneck, minimize the user access latency and reduce the network traffic. In this paper, we express the discussion on what is the Web caching and prefetching, why we have to opt its and how to pertain of these two technologies.

关键词： Prefetching Servers Internet Mobile communication World Wide Web Web server Algorithm design and analysis

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A solution to unit commitment problem using hybrid ant system/priority list method

A solution to unit commitment problem using hybrid ant syste...

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National Proceedings Power and Energy Conference (PECon)

作者： Songsak Chusanapiputt Dulyatat Nualhong Sujate Jantarang Sukumvit Phoomvuthisarn Department of Electrical Power Engineering Faculty of Engineering Mahanakom University of Technology Bangkok Thailand Electrical Engineering Department Electrical and Control System Engineering Division Electricity Generating Authority of Thailand Bangkok Thailand Department of Computer Engineering and Satellite Research Center Faculty of Engineering Mahanakom University of Technology Bangkok Thailand Center of Excellence in Electrical Power Technology Chulalongkom University Bangkok Thailand

This paper presents a new method to solve unit commitment problem with operating constraints using a hybrid ant system/priority list method (HASP). The proposed methodology employs ant system in cooperating with the priority list method to find unit commitment solution as means of mutually combining the advantages of them in that a flexibility of the priority list method is reinforced, while AS algorithm can gain the benefit of using bias information for improving its performance during search process. The simulation results show that the proposed HASP is capable of obtaining satisfactory solution within reasonable computational time.

关键词： Power engineering and energy Power generation Evolutionary computation Power system simulation Fuels Costs Power engineering Control systems systems engineering and theory Hybrid power systems

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Model-based nonlinear optimal blood glucose control of Type I diabetes patients

Model-based nonlinear optimal blood glucose control of Type ...

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Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

作者： Levente Kovacs Balazs Kulcsar Jozsef Bokor Zoltan Benyo Department of Control Engineering and Information Technology Budapest University슠of슠Technology슠and슠Economics Hungary Delft Center for System and Control Faculty of Mechanical Maritime and Materials Engineering Technical University Delft Netherlands Computer and Automation Research Institute Hungarian Academy of Sciences Budapest Hungary

Using induced L 2 -norm minimization, a robust controller was developed for insulin delivery in Type I diabetic patients. The high-complexity nonlinear diabetic patient Sorensen-model [1] was considered. LPV (Linear Parameter Varying) methodology was used to develop open loop model and robust controller. Considering the normoglycemic set point (81.1 mg/dL), a polytopic set was created over the physiologic boundaries of the glucose-insulin interaction of the Sorensen-model. In this way, LPV model formalism was defined. The robust control was developed considering input and output multiplicative uncertainties with other weighting functions.

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Research on rough set theory and applications in China

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Lecture Notes in computer Science

作者： Wang, Guoyin Zhang, Qinghua Huang, Houkuan Ye, Dongyi Hu, Qinghua Hu, Xuegang Shi, Zhongzhi Li, Yongli Shang, Lin An, Liping Sai, Ying Chen, Shanben Liang, Jiye Qin, Keyun Zeng, Huanglin Xie, Keming Miao, Duoqian Min, Fan Wu, Zhaocong Wu, Weizhi Dai, Jianhua Institute of Computer Science and Technology Chongqing University of Posts and Telecommunications Chongqing 400065 China School of Information Science and Technology Southwest Jiaotong University Chengdu 610031 China School of Computer and Information Technology Beijing Jiaotong University Beijing 100044 China College of Math. and Computer Fuzhou University Fuzhou 350002 China Harbin Institute of Technology PO Box 458 Harbin 150006 China School of Computer and Information Hefei University of Technology Hefei 230009 China Institute of Computing Technology Chinese Academy of Sciences Beijing 100080 China Lanzhou University No.222 Tianshui South Rd. Lanzhou 730000 China State Key Laboratory for Novel Software Technology Nanjing University Nanjing 210093 China Management Science and Engineering Department Business School Nankai University Tianjin 300071 China Shandong University of Finance No.40 Shun-geng Road Jinan 250014 China Welding Engineering Institute Shanghai Jiaotong University Shanghai 200030 China School of Computer and Information Technology Shanxi University Taiyuan 030006 China Intelligent Control Development Center Southwest Jiaotong University Chengdu 610031 China Artificial Intelligence of Key Laboratory Sichuan University of Science and Engineering Zigong 643000 China Department of Automation College of Information Engineering Taiyuan University of Technology Taiyuan 030024 China 4800 CaoAn Highway Shanghai 201804 China School of Computer Science and Technology University of Electronic Science and Technology of China Chengdu 610054 China School of Remote Sensing Information Engineering Wuhan University Wuhan 430079 China Institute for Information and System Sciences Faculty of Science Xi'an Jiaotong University Xi'an 710049 China Information College Zhejiang Ocean University Zhejiang 316004 China Institute of Artificial Intelligence Zhejiang University Hangzhou 310027 China

ISBN: (纸本)3540850635

This article gives a capsule view of research on rough set theory and applications ongoing at universities and laboratories in China. Included in this capsule view of rough set research is a brief description of the following things: Chinese research groups on rough set with their URLs for web pages, names of principal researchers (supervisors), numbers of graduate students, and topics being investigated. Statistical summaries showing the growth in the research on rough set theory and application in China are included. In addition, an introduction summarizing the research interests of Chinese researchers is included in this article. The contribution of this article is a complete overview of the principal research directions in rough set theory and its applications in China. © 2008 Springer-Verlag Berlin Heidelberg.

关键词： Rough set theory

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RC4A stream cipher for WLAN security: A hardware approach

RC4A stream cipher for WLAN security: A hardware approach

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International Conference on Electrical and computer Engineering (ICECE)

作者： Abdullah Al Noman Roslina b. Mohd. Sidek Abdul Rahman b. Ramli Liakot Ali Department of Electrical and Electronic Engineering Faculty of Engineering Universiti Putra Malaysia Serdang Selangor Darul Ehsan Malaysia Quantum Information Department MIMOS Berhad Kuala Lumpur Malaysia Department of Computer and Communication System Engineering Faculty of Engineering Universiti Putra Malaysia Serdang Selangor Darul Ehsan Malaysia Institute for Information and Communication Technology Dhaka Bangladesh

Wireless networks are on the cutting edge of modern technology and rapidly gaining popularity in todaypsilas world due to their excellent usability. For secure wireless data transmission, Wired Equivalent Privacy (WEP), IEEE 802.11 standard defined security protocol, is employed. WEP has a potential limitation that stems from its adaptation of RC4 stream cipher algorithm. As a result, there is a pressing need for new WLAN security measure. Therefore, this paper presents hardware implementation of RC4A stream cipher and proposes to replace RC4 in WLAN security scheme, due to weakness of *** design of the cipher was implemented by Verilog HDL. For hardware implementation of the design, an Altera Field Programmable Gate Array (FPGA) device, EP20K200EFC484-2X from APEX family, APEX 20KE, was used.

关键词： Wireless LAN Data security Hardware design languages Field programmable gate arrays Wireless networks Usability Communication system security Data communication Data privacy Wireless application protocol

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Handoff techniques for 4G wireless mobile Internet

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Information technology Journal 2007年第5期6卷 745-750页

作者： Li, Xichun Salleh, Rosli Department of Computer System and Technology Faculty of Computer Science and Information Technology University of Malay 50603 Kuala Lumpur Malaysia

In this study, new handoff technique is developed to support wireless mobile bandwidth efficiency and higher data rates. This study will address handoff issues when a mobile node comes into WLAN overlapping region from a CDMA2000 coverage area and the mobile node will be supplied service by these two networks simultaneously through setting up a mix-bandwidth data path between the two networks. The performance of the proposed new data path will be evaluated and compared with current existing scheme through extensive simulations. The cost of the established new data path is also evaluated in terms of throughput and data transmission efficiency. © 2007 Asian Network for Scientific Information.

关键词： Wireless networks

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Increase knowledge visualization and interactivity through interactive web-based dash-board system based on graph-based technique: A framework of interactive dashboard knowledge visualization system for higher education

Increase knowledge visualization and interactivity through i...

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11th World Multi-Conference on systemics, Cybernetics and Informatics, WMSCI 2007, Jointly with the 13th International Conference on Information systems Analysis and Synthesis, ISAS 2007

作者： Wan Mohd, Wan Maseri Binti Zain, Jasni Mohd Embong, Abdullah Faculty of Computer System and Software Engineering University College of Engineering and Technology Malaysia

ISBN: (纸本)1934272175

We propose a novel approach of knowledge visualization method by adopting graph-based visualization technique and incorporating Dashboard concept for higher education institutions. Two aspects are emphasized, knowledge visualization and human-machine interaction. The knowledge visualization helps users to analyze the comprehensive characteristics of the students, lecturers and subjects after the clustering process and the interaction enable domain knowledge transfer and the use of the human's perceptual capabilities, thus increases the intelligence of the system. The knowledge visualization is enhanced through the dashboard concept where it provides significant patterns of knowledge on real-world and theoretical modeling which could be called wisdom. The framework consists of the system architecture and design for higher education environment is presented in this paper.

关键词： Data mining

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