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International Conference on Software engineering and Data Mining (SEDM)

作者： Hajime Iwata Junko Shirogane Yoshiaki Fukazawa Department of Network and Communication Kanagawa Institute of Technology Atsugi Kanagawa Japan Department of Communication Tokyo Womans Christian University Suginami Tokyo Japan Department of Computer Science and Engineering Waseda University Shinjuku Tokyo Japan

ISBN: (纸本)9781424473243;9788988678220;9788988678213

End users' experiences, which differ drastically from user to user, influence the perceived usability. Thus, to make software user friendly, it is important to support learning operation methods for end users. To this end, tutorial systems have been proposed. Although referring to the performance of various users has been effective in learning operation methods using tutorial systems, which operation sequences are more frequently performed must be analyzed. Herein we propose a method to generate a tutorial system by analyzing the operation logs of end users and by extracting window sequences from source programs within the software.

关键词： Usability computer science Performance analysis Embedded software Software systems Switches Books

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Physical layer monitoring in 8-branched PON-based i-FTTH

Physical layer monitoring in 8-branched PON-based i-FTTH

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International Conference on Photonics (ICP)

作者： Ng Boon Chuan Aswir Premadi Mohammad Syuhaimi Ab-Rahman Kasmiran Jumari Department of Electrical Spectrum Technology Research Division Computer & Network Security Research Group Faculty of Engineering & Built Environment Universiti Kebangsaan Malaysia Bangi Selangor Darul Ehsan Malaysia

This paper reports a novel physical layer monitoring technique called Centralized Failure Detection System (CFDS) based on the use of an optical time domain reflectometry (OTDR) and integrated with inexpensive additional optical devices at the middle of the network system for monitoring the fiber plant of a wide range of passive optical network (PON) based intelligent fiber-to-the-home (i-FTTH) in the background during network operation and determining the faulty branch as well as the fault parameters. Access Control System (ACS) has been developed to handle the centralized line detection for diverting the OTDR pulse signal from central office (CO) to bypass the filter and connect to each corresponding fiber link in drop section. The design and implementation of this integrated hardware/software system enable each lines' status can be observed and monitored at static point where the OTDR injecting the signal. All OTDR measurements are transmitted into remote workstation for centralized monitoring and advanced analyzing.

关键词： Optical fiber networks Monitoring Optical fibers Optical fiber devices Integrated optics Testing

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The Simple and Compact Remote Telescope System

The Simple and Compact Remote Telescope System

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International Conference on Complex, Intelligent and Software Intensive Systems, CISIS

作者： Kenzi Watanabe Makoto Otani Hisaharu Tanaka Masami Okyudo Department of Information Science Faculty of Science and Engineering Saga University Saga Japan Computer and Network Center Saga University Saga Japan Faculty of Tourism Wakayama University Wakayama Japan

A remote telescope is a remote controllable astronomical telescope system via the Internet. There were already several remote telescope systems. However, all such systems are big and special ones. We have developed a simple and compact remote telescope system. We used a commercial Vixen equatorial telescope, a compact CCD video camera and a small Linux box for the new remote telescope. It is easy to carry and install the remote telescope.

关键词： Telescopes Web server Watches Charge coupled devices Charge-coupled image sensors Internet Observatories Australia Information science Control systems

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The Simulation and Analysis of the Electromagnetic Shielding Effectiveness of PoE-Hub with Redundancy by FEM

The Simulation and Analysis of the Electromagnetic Shielding...

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International Conference on Electrical and Control engineering (ICECE)

作者： Fu Wei Tong Shi-hua Zhang Ya-chao Zhang Jun Key Laboratory of Network Control & Intelligent Instrument ministry of Education Chongqing University of posts and telecommunications Chongqing China Computer application Department Chongqing College of Electronic Engineering Chongqing China

This paper is to introduce the design and optimization the PoE Hub with redundancy based on the principle of EMC; through the simulation and analysis by FEM to the effectiveness of the hub of the electromagnetic shielding to enhance anti-interference performance of the hub according to the optimization to the problems discussed in the simulation. Having the aid of EMC simulation software, the analysis problem being found during the test of hub is also get the effective solution. The method of the analysis testing and problem-solving will be the guidance and reference to the design and research of the network equipment based on the principle of EMC in the future.

关键词： Finite element methods Electromagnetic compatibility Analytical models Redundancy Computational modeling Ethernet networks Electromagnetic shielding

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Determination of channel capacity and optimum source distribution of fiber-optic channel

Determination of channel capacity and optimum source distrib...

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International Conference on Transparent Optical networks

作者： Jianyong Zhang Ivan B. Djordjevic Hussam G. Batshon ShuiSheng Jian Key lab of All optical Network & Advanced Telecommunication Network of EMC Beijing Jiaotong University Beijing China Department of Electrical & Computer Engineering University of Arizona Tucson USA Institute of Lightwave Technology Beijing Jiaotong University Beijing China

ISBN: (纸本)9781424477999

We describe a general engineering method to compute a tighter bound on fiber-optic channel capacity and the optimum source distribution. This method first determines the conditional probability density functions of an optical fiber channel by evaluating histograms, or by instantons or edgeworth expansion approach. Starting from any source distribution, we generate source and output sequences to estimate the information rate and calculate A-posteriori State-Transition Weight. The optimum source distribution is obtained by constrained stochastic Arimoto-Blahut algorithm. We apply the proposed methods on a 64 iterative polarization quantization source. The optimized capacity per single-polarization per channel is higher than achievable information rate. As the transmission distance increases the optimized distribution is changed from Gaussian-like distribution to non-Gaussian-like distribution. This is due to the fact that the nonlinear interaction of ASE noise and Kerr nonlinearities cannot be compensated for by back-propagation method.

关键词： Channel capacity Optical fibers Optical fiber polarization Information rates Distributed computing Probability density function Histograms State estimation Stochastic processes Iterative algorithms

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A framework of online chain store integrated with personalised recommendation for e-commerce

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International Journal of Wireless and Mobile Computing 2010年第3期4卷 228-239页

作者： Hung, Jason C. Wang, Yu-Bing Deng, Lawrence Y. Yang, Schummi Huang, Chun-Hong Department of Information Management Overseas Chinese University Taichung 407 Taiwan Department of Business Administration University of Northern Virginia Northern Virginia VA 22003 United States Department of Computer Science and Information Engineering St. John's University Taipei 25135 Taiwan Department of Information Management China University of Technology Hsing-Chu 30301 Taiwan Department of Computer Information and Network Engineering Lunghwa University of Science and Technology Taoyuan County 33306 Taiwan

With the rapid growth of the internet and communication technologies, many real world activities were applied on the internet. We proposed the nomadic media server to achieve the maximum use of network bandwidth. The mobile server will play an important role in the future virtual society. Chain store over the internet is a rare management model in electronic commerce. In this paper, we construct many chain stores via using nomadic media server. Besides, online merchants must know what customers want and make them buying something from their sites, so recommendation process becomes an important strategy for the merchants. We propose a recommendation system for the e-commerce portal, which will help merchants to make suitable business decision and delivery personal information to the customers. © 2010 Inderscience Enterprises Ltd.

关键词： Chains

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Research on language model of long-distance dependency

Research on language model of long-distance dependency

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International Conference on Advances in Energy engineering (ICAEE)

作者： ZhiHai Xu Jian Xie Wei Ge Chun Hu Network Center University of Nanchang Nanchang China Department of Information Engineering Jiangxi Vocational and Technical College of Electricity Nanchang China Computer Science Department Jiang Xi Radio and Television University Nanchang China Network Center Jiangxi University of Science and Technology Nanchang China

In this paper, we discussed current situation and problems of the statistical language models. And then the development and realization methods of the long-distance dependency language model simply introduced. At last... 详细信息

关键词： Argon Syntactics

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Fair End-to-End Bandwidth Distribution in Wireless Sensor networks

Fair End-to-End Bandwidth Distribution in Wireless Sensor Ne...

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IEEE International Conference on Communications (ICC)

作者： Y. Jian S. Chen Y. Ling Department of Computer & Information Science & Engineering University of Florida USA Network Information Center University of Shanghai for Science and Technology China Applied Research Laboratories Telcordia Technologies Inc. USA

End-to-end fairness in a sensor network ensures that data from each sensor has an equal (or weighted) chance to reach the sink. It eliminates the problem that data flows from sensors at some locations (close to the sink) obtain most network bandwidth, while flows from sensors at other locations (far away from the sink) are starved. Existing fairness solutions assume single-path routing, which reduces achievable throughput of the network. In this paper, we propose a multipath fairness solution (MFS) that achieves end-to-end fairness among competing flows through fully distributed operations. MFS is easy to implement, which is advantageous in a resource-scarce sensor network. More importantly, it achieves much higher network throughput and better fairness among the flows.

关键词： Bandwidth Wireless sensor networks Routing Throughput Paper technology Base stations Channel allocation Telecommunication traffic Communications Society computer networks

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Document clustering with semantic features and fuzzy association

Communications in Computer and Information Science

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Communications in computer and Information Science 2010年 54卷 167-175页

作者： Park, Sun An, Dong Un Cha, ByungRea Kim, Chul-Won Advanced Graduate Education Center of Jeonbuk for Electronics and Information Technology BK21 Chonbuk National University Korea Republic of Division of Electronic and Information Engineering Chonbuk National University Korea Republic of Network Media Lab. GIST Korea Republic of Department of Computer Engineering Honam University Korea Republic of

ISBN: (纸本)9783642120343

This paper proposes a new document clustering method using the semantic features and fuzzy association. The proposed method can improve the quality of document clustering because the clustered documents by using fuzzy association values to distinguish well dissimilar documents, the selected cluster label term by semantic features, which is used in document clustering, can represent an inherent structure of document set better. The experimental results demonstrate that the proposed method achieves better performance than other document clustering methods. © 2010 Springer-Verlag Berlin Heidelberg.

关键词： Cluster analysis

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The simulation and analysis of the electromagnetic shielding effectiveness of PoE-Hub with redundancy by FEM

The simulation and analysis of the electromagnetic shielding...

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International Conference on Electrical and Control engineering, ICECE 2010

作者： Fu, Wei Tong, Shi-Hua Zhang, Ya-Chao Zhang, Jun Key Laboratory of Network Control and Intelligent Instrument ministry of Education Chongqing University of posts and Telecommunications Chongqing 400065 China Computer Application Department Chongqing College of Electronic Engineering Chongqing 401331 China

ISBN: (纸本)9780769540313

This paper is to introduce the design and optimization the PoE Hub with redundancy based on the principle of EMC;through the simulation and analysis by FEM to the effectiveness of the hub of the electromagnetic shielding to enhance anti-interference performance of the hub according to the optimization to the problems discussed in the simulation. Having the aid of EMC simulation software, the analysis problem being found during the test of hub is also get the effective solution. The method of the analysis testing and problem-solving will be the guidance and reference to the design and research of the network equipment based on the principle of EMC in the future. © 2010 IEEE.

关键词： Electromagnetic compatibility

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