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8th Asia-Pacific Symposium on Information and Telecommunication Technologies, APSITT 2010

作者： Zahilah, Raja Ogino, Yuta Nishiuma, Soichiro Nooruzzaman, Md. Koyama, Osanori Katsuyama, Yutaka Graduate School of Engineering Osaka Prefecture University Gakuen-cho 1-1 Naka-ku Sakai Osaka 599-8531 Japan Faculty of Computer Science and Information System Universiti Teknologi Malaysia 81310 UTM Skudai Johor Bahru Johor Malaysia

ISBN: (纸本)9781424464135

A lightpath route management system with parallel processing capabilities and a flexible upgradability, allowing new functions to be added to the system without any system program changes, has been designed and implemented for IP-over-CWDM networks with ROADMs. The system can process route management functions composed of some sub applications in parallel in multi machines for high speed performance. In addition, the system was designed to have a flexible upgradability which allows adding new functions to the system, i.e. no changes of the system programs are required when adding the new functions. The system functions are to search possible lightpath routes made by ROADMs with specified switch states, and to output the total optical losses of the routes. The system was implemented and the performance was evaluated. By the system with one management and 3 calculation machines for the parallel processing, the total time to obtain the results for a 5-node IP-over-CWDM network was reduced down to 65 % of the total time by the system with a single machine without parallel processing. The system enables the network administrators to manage the lightpath reconfigurations effectively without errors by avoiding making unlinked lightpaths through routes with higher losses to connect nodes, before the reconfiguration.

关键词： Internet protocols

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Using Captchas to Mitigate the VoIP Spam Problem

Using Captchas to Mitigate the VoIP Spam Problem

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International Conference on computer Research and Development (ICCRD)

作者： Ismail Ahmedy Marius Portmann Department of Computer System and Communication Faculty of Computer Science and Information System Universiti Teknologi Malaysia Johor Malaysia School of Information Technology and Electrical Engineering University of Queensland QLD Australia

ISBN: (纸本)9781424469925;9780769540436

Voice over Internet Protocol (VoIP) is one of the emerging technologies today. This application offers the user a service by which one can call another person at a low cost as compare with traditional phone services. One drawback to the Internet is spam, which are unsolicited or unwanted objects which often appear as unwanted messages in various email applications. For VoIP, spam refers to unsolicited and unwanted calls by the VoIP user. In this paper, we have purposed a solution to prevent the spam in VoIP. The CAPTCHA (Completely Automated Public Turing Test to Tell computers and Human Apart) method aims to determine whether the call is coming from a human or a machine. The key contribution of this paper is a proof-of-concept implementation of a CAPTCHA mechanism to prevent VoIP Spam.

关键词： Unsolicited electronic mail Internet telephony Electronic mail Protocols Application software Costs Humans Packet switching IP networks Web and internet services

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Validated pole assignment method based on verified numerical computation

Validated pole assignment method based on verified numerical...

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SICE Annual Conference

作者： Kentaro Yano Masanobu Koga Hiromasa Nakashima Department of Information and Multimedia Technology Fukuoka Institute of Technology Fukuoka Japan Faculty of Computer Science and System Engineering Kyushu Institute of Technology Fukuoka Japan Graduate School of Computer Science and System Engineering Kyushu Institute of Technology Fukuoka Japan

ISBN: (纸本)9781424476428

This paper proposes validated control system design method based on verified numerical computation. The proposed method designs a controller and validates it using verified numerical computation. We also propose a method to find the numerically most design-specification satisfied controller quickly by using multiple-precision arithmetic. And, this paper applies a proposed method to pole assignment problem.

关键词： Control systems Design methodology Accuracy Computational modeling Mathematical model Numerical models Equations

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An Overview of Success Factors for CRM

An Overview of Success Factors for CRM

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2010 2nd IEEE International Conference on Information and Financial engineering(ICIFE2010)

作者： Farnaz Arab Harihodin Selamat Mazdak Zamani Centre for Advanced software Engineering Universiti Teknologi Malaysia Kuala Lumpur Malaysia Faculty of Science Computer and Information System Universiti Teknologi Malaysia Skudai Malaysia Faculty of Computer Science and Information System Universiti Teknologi Malaysia Kuala Lumpur Malaysia

Customer Relationship Management has become the main interest of researchers and practitioners especially in the domains of Marketing and Information systems (IS).This paper is an overview on success factors that coul... 详细信息

关键词： customer relationship management CRM components CRM success factors information systems information technology

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Effects of Delayed Presentation of Self-Embodied Avatar Motion with Network Delay

Effects of Delayed Presentation of Self-Embodied Avatar Moti...

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2010 4th International Universal Communication Symposium(第四届国际普遍交流学术研讨会 IUCS 2010)

作者： Yutaka Ishii Yoshihiro Sejima Tomio Watanabe Information Science and Technology Center Kobe University 1-1 Rokkodai Nada Kobe Japan Graduate School of Science and Engineering Yamaguchi University Faculty of Computer Science and Sys Faculty of Computer Science and System Engineering Okayama Prefectural University CREST Japan Scie

A large network delay is likely to obstruct human interaction in telecommunication systems such as telephony or video conferencing systems. In spite of the extensive investigations that have been carried out on network delays of voice and image data, there have been few studies regarding support for embodied communication under the conditions of network delay. To maintain smooth human interaction, it is important that the various ways in which delay is manifested are understood. We have already developed an embodied virtual communication system that uses an avatar called "VirtualActor," in which speakers who are remotely located from one another can share embodied interaction in the same virtual space. Responses to a questionnaire that was used in a communication experiment confirmed that a fixed 500-ms network delay has no effect on interactions via VirtualActors. In this paper, we propose a method of presenting a speaker's voice and an avatar's motion feedback in the case of a 1.5-s network delay using VirtualActors. We perform two communication experiments under different conditions of network delay. The aim of the first experiment is to examine the effect of a random time delay on the conversation. The second experiment is conducted under the conditions of a free-form conversation that takes place in 5 scenarios—1 realtime scenario without a network delay and 4 scenarios with network delay that involve a combination of a delay in the talker's voice and in his/her avatar's motion feedback. The subjects consisted of a total of 30 students who worked in 15 pairs and who were familiar with each other. A sensory evaluation shows the effects upon communication of delays in the avatar's motion feedback, from the viewpoint of supporting the interaction.

关键词： Embodied Communication Avatar-Mediated Communication Network Delay Feedback Presentation Avatar's Motion Delay

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Stability of different feature selection methods for selecting protein sequence descriptors in protein solubility classification problem

Stability of different feature selection methods for selecti...

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Annual IEEE Symposium on computer-Based Medical systems

作者： Simon Kocbek Gregor Stiglic Igor Pernek Peter Kokol Research Institute Faculty of Health Sciences University of Maribor Maribor Slovenia Faculty of Electrical Engineering and Computer Science Laboratory for System Design Maribor Slovenia

Predicting protein solubility has gained lots of intention in the recent years and several descriptors have been defined to describe proteins in these works. Therefore, different feature selection methods have been used for selecting the most important attributes. An empirical study, that aims to explain the relationship between the number of samples and stability of seven different feature selection techniques for protein datasets, is presented.

关键词： Proteins Amino acids Stability analysis Support vector machines Databases Numerical stability Correlation

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Proposal and evaluation for wireless sensor network which use terminal that eliminated receiver circuit

Proposal and evaluation for wireless sensor network which us...

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2nd International Conference on Ubiquitous and Future Networks, ICUFN 2010

作者： Nose, Hiroaki Bao, Miao Niimura, Masaaki Fuwa, Yasushi Mizuta, Kazumasa Yoshikawa, Yasushi Kunimune, Hisayoshi Department of Computer and System Engineering Nagano Prefectural Institute of Technology Ueda-shi Japan Graduate School of Science and Technology Shinshu University Nagano-shi Japan Epson Toyocom Corporation Hino-shi Japan Seiko Epson Corporation Suwa-shi Japan Faculty of Engineering Shinshu University Nagano-shi Japan

ISBN: (纸本)9781424480883

Sensor network terminals are installed in large numbers in the field and transmit data periodically by radio. Such terminals must be miniaturized, and save power so that each device can operate by battery for several years. As one way to satisfy these two conditions, in this research we propose a terminal design which eliminates the receiver circuit. Because there is no receiver circuit, circuitry can be miniaturized, and power can be saved because there is no need to consume power to receive signals. However, the terminals cannot perform carrier detection and reception acknowledgement because there is no receiver circuit. We propose following two new protocols to solve this problem. © 2010 IEEE.

关键词： Sensor nodes

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Intelligent Supply Chain Management

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Journal of Software engineering and Applications 2010年第4期3卷 404-408页

作者： Mohammad Zubair Khan Omar Al-Mushayt Jahangir Alam Jorair Ahmad Faculty of Computer Science and Information System University of Jizan Jizan Kingdom of Saudi Arabia University Women’s Polytechnic Faculty of Engineering and Technology Aligarh Muslim University Aligarh India.

Fuzzy Logic is used to derive the optimal inventory policies in the Supply Chain (SC) numbers. We examine the performance of the optimal inventory policies by cutting the costs and increasing the supply chain management efficiency. The proposed inventory policy uses multi-agent and Fuzzy logic, and provides managerial insights on the impact of the decision making in all the SC numbers. In particular, we focus on the way in which our agent purchases components using a mixed procurement strategy (combining long and short term planning) and how it sets its prices according to the prevailing market conditions and its own inventory level (because this adaptivity and flexibility are key to its success). In modern global market, one of the most important issues of the supply chain (SC) management is to satisfy changing customer demands and enterprises should enhance the long-term advantage through the optimal inventory control. In this paper an intelligent multi-agent system to simulate supply chain management has been developed.

关键词： SCM Supply Chain Management Customer Agent RFQ Component Agent

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A simultaneous design of structural and control systems using an infeasible controller sequence

A simultaneous design of structural and control systems usin...

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SICE Annual Conference

作者： Yasushi Kami Takeshi Terada Eitaku Nobuyama Department of Electrical and Computer Engineering Akashi National College of Technology Akashi Japan Department of the Mechanical and Electronic System Engineering Advanced Courses of Akashi National College of Technology Faculty of Computer Science and System Engineering Kyushu Institute of Technology Iizuka Japan

ISBN: (纸本)9781424476428

This paper is concerned with a simultaneous design problems of structural and reduced-order H ∞ control systems. The purpose of this paper is to propose an iterative approach to the simultaneous design problem, which constructs a sequence of infeasible controller variables The feature of our approach is that it is easy to choose an initial point which is needed to carry out the iterative approach. The efficiency of our approach is shown by a numerical example.

关键词： Iterative methods Structural engineering Optimization Linear matrix inequalities Output feedback Transfer functions

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Classification of hand postures based on 3D vision model for human-robot interaction

Classification of hand postures based on 3D vision model for...

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19th IEEE International Conference on Robot and Human Interactive Communication, RO-MAN 2010

作者： Takimoto, Hironori Yoshimori, Seiki Mitsukura, Yasue Fukumi, Minoru Faculty of Computer Science and System Engineering Communication and Engineering Okayama Prefectural University 111 Kuboki Soja Okayama 719-1197 Japan Faculty of Engineering Nippon Bunri University 1727 Ichigi Oita 870-0397 Japan Graduate School of Bio-Application and Systems Engineering Tokyo University of Agriculture and Technology 2-24-16 Naka-cho Higashi-koganei Tokyo 184-8588 Japan Dept. of Information and Science Intelligent Systems University of Tokushima 2-1 Minami-josanjima Tokushima 770-8506 Japan

ISBN: (纸本)9781424479917

In this paper, a method for hand posture recognition, which is robust for hand posture changing in an actual environment, is proposed. Conventionally, a data glove device and a 3D scanner have been used for the feature extraction of hand shape. However, the performance of each approach is affeected by hand posture changing. Therefore, this paper proposes the posture fluctuation model for efficient hand posture recognition, based on 3D hand shape and color feature obtained from a stereo camera. A large set of dictionary for posture recognition is built by various leaned hand images which were auto-created from one scanned hand image, based on plural proposed models. In order to show the effectiveness of proposed method, performance and processing times for posture recognition are compared to conventional method. In addition, we perform the evaluation experiment by using the Japanese sign language. © 2010 IEEE.

关键词： Human robot interaction

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