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International Conference on computer, Mechatronics, Control and Electronic Engineering

作者： Wasinphongwanit, Pheerawit Phokharatkul, Pisit Technology of Information System Management Faculty of Engineering Mahidol University Nakhon Pathom 73170 Thailand Department of Computer Engineering Faculty of Engineering Mahidol University Nakhon Pathom 73170 Thailand

ISBN: (纸本)9781424479566

Content based image retrieval (CBIR) is well-known in the field of image retrieval. It uses contents of an image from image processing and analysis to retrieve images that users were looking for from an image search. Shape based image retrieval was focused in this paper. A data mining was considered to find knowledge in the image database. Fourier descriptor is a most technique to extract contour feature of images. It was used to analyze the testing and training images in the preprocessing step. Fourier coefficients were quantized into multiple attributes and rough set theory was used to generate a rule-based system. Rough set theory is used as a data mining technique. It was compared to similarity measurement. We use 15, 984 testing image data with 71, 928 training image data in this experiment. A total usage time of rough set method is 13, 286 seconds. A total usage time of similarity measurement is 19, 365 seconds. A total usage memory of rough set method and similarity measurement are 2.8 Mbytes and 8.6 Mbytes respectively. An average precision, an average recall and an average accuracy of rough set method are 0.1297, 0.261 and 0.9971. An average precision, an average recall and an average accuracy of similarity measurement are 0.1619, 0.9651 and 0.9852. The rough set method is advantage to the usage time and the usage memory. © 2010 IEEE.

关键词： Rough set theory

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Design of a new distributed model for intrusion detection system based on artificial immune system

Design of a new distributed model for intrusion detection sy...

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作者： Hosseinpour, Farhoud Bakar, Kamalrulnizam Abu Hardoroudi, Amir Hatami Dareshur, Ali Farhang Faculty of Computer Science and Information System University of Technology Malaysia 54100 Kuala Lumpur Malaysia University of Technology Malaysia 54100 Kuala Lumpur Malaysia

ISBN: (纸本)9788988678312

Currently Intrusion detection systems have grown to be an ordinary component of network security infrastructure. With mounting global network connectivity, the issue of intrusion has achieved importance, promoting active research on efficient Intrusion Detection systems (IDS). Artificial Immune system (AIS) is a new bio-inspired model which is applied for solving various problems in the field of information security. The unique features AIS encourage the researchers to employ this techniques in variety of applications and especially in intrusion detection systems. Proper IDS design is essential to improve the performance of the IDS. The centralized design of this IDS has disadvantage of central processing for massive processes for each packets passing trough network. In this paper we proposed a distributed multi-layerd framework to enhance the detection performance and efficiency of this IDS. In our design the genetic algorithm is used for enhancing the secondary immune response. The fundamental design of our proposed AIS based IDS consists of 2 main components: IDS central engine and detection sensors. Each of these components is composed of some agents which correlate with each other in order to detect the anomalies and intrusions. Our design goal is to decrease the detection time for each connection by distributing the detectors to each host.

关键词： Network security

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Interpretative key management (IKM), A novel framework

Interpretative key management (IKM), A novel framework

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2nd International Conference on computer Research and Development, ICCRD 2010

作者： Chaeikar, Saman Shojae Razak, Shukor Abd Honarbakhsh, Shohreh Zeidanloo, Hossein Rouhani Zamani, Mazdak Jaryani, Farhang Centre for Advanced Software Engineering University Technology Malaysia 54100 Kuala Lumpur Malaysia Faculty of Computer Science and Information System University Technology Malaysia 54100 Kuala Lumpur Malaysia

ISBN: (纸本)9780769540436

Nowadays, we use cryptography keys to secure our communications. One of the common ways for securing data exchanging is via the use of symmetric keys to encipher transmitted data over network. Today's practices for managing keys face many issues in key generation, distribution, and revocation. In this paper we propose interpretative key management method which is simpler than the current practices. Eliminating the need for key storage, the need for key distribution, automatic key revocation, and unique key per session are the main features of the new proposed key management method. Deletion of some steps and replacing some others with new ones helped us to dominate many issues faced with common practices of key management. © 2010 IEEE.

关键词： Electronic data interchange

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Integration of chaotic map and confusion technique for color medical image encryption

Integration of chaotic map and confusion technique for color...

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作者： Abokhdair, Nuha Omran Manaf, Azizah Bt. Abdul Zamani, Mazdak Faculty of Computer Science and Information System University of Technology Malaysia 54100 Kuala Lumpur Malaysia College of Science and Technology University of Technology Malaysia 54100 Kuala Lumpur Malaysia

ISBN: (纸本)9788988678275

In order to achieve secure access to color medical image, a symmetric color medical image encryption is proposed in this paper. The proposed algorithm is base on combination of scrambling and confusion processes. 2D lower triangular map used for scrambling the addresses of image pixels, and the proposed propeller algorithm is used to confuse the gray values of image pixels. A number of security analyses conducted to evaluate the proposed algorithm including key space analysis, statistical analysis and lossless analysis. The experimental results indicate that the proposed algorithm robust against brute-force attack and statistical attack. Finally the proposed algorithm is lossless algorithm.

关键词： Color

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Online information sharing issues in website personalization

Online information sharing issues in website personalization

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1st International Conference on User Science and Engineering 2010, iUSEr 2010

作者： Razali, Mohd Norhisham Fun, Tan Soo Razak, Fariza Hanis Abdul Hanapi, Rozita Software Engineering School of Engineering and Information Technology University Malaysia Sabah Malaysia Network and System Management School of Engineering and Information Technology University Malaysia Sabah Malaysia Department of System Science Faculty of Computer and Mathematical Sciences University Teknologi MARA Shah Alam Selangor Malaysia Office System Management Faculty of Office Management and Technology Universiti Teknologi MARA Puncak Alam Selangor Malaysia

ISBN: (纸本)9781424490493

Website Personalization is one of strategic technique in delivering services in online applications. A part of process for building personalization applications is to collect particular information from the user which involves information sharing. However, the awareness about privacy concerns and security threats have caused to non-sharing behavior among the Internet Users. This situation have caused website personalization cannot be built to serve its purposes. This paper aims to investigate the people's behavior and to study the propensity of information sharing attitude in two different environments and cultures. The two environments are between real-life and online while the two cultures are between Malaysian and non-Malaysian. Since this is an exploratory study, interview with five (5) persons have been conducted. The qualitative technique that chooses was recommended for any exploratory study. The findings of this study explained the understanding of behaviors and the factors of Information Sharing. The factors are the cultural factors, the platform of sharing and the behavior of information sharing in web personalization. The sharing behavior in two environments and cultures were also compared. The data collected from the interviews have generalizing the speculations and issues in information sharing which have been discussed at the end section of this paper. ©2010 IEEE.

关键词： Websites

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Multi-fault diagnosis of gear based on sequential fuzzy inference

Multi-fault diagnosis of gear based on sequential fuzzy infe...

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2010 International Conference on Mechanic Automation and Control Engineering, MACE2010

作者： Luo, Zhigao Chen, Qiang Chen, Peng Zhou, Xiong School of Mechanical Engineering Jiangsu University Zhenjiang China Faculty of Computer Science and System Engineering Kyushu Institute of Technology Iizuka-shi Japan School of Mechanical Engineering Chongqing University of Science and Technology Chongqing China

ISBN: (纸本)9781424477388

The article briefly analyzes the vibration mechanism of the gear fault and kinds of typical signal characteristics of the gears, and introduces successive fuzzy reasoning into the fault diagnosis of the gears. For the selection of characteristic parameters, we used the discrimination index DI to evaluate the identification ability of the characteristic parameters, and select the characteristic parameters of the largest value of DI . According to possibility theory and statistics and probability theory, we replace the original feature parameters into feature parameters of known distributional, and then equate the membership function used in fuzzy reasoning. Finally, the given diagnosis instance indicates that it is effective and feasible to use the method of successive fuzzy reasoning in the fault diagnosis of gears. ©2010 IEEE.

关键词： Membership functions

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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, IUCS 2010

作者： Ishii, Yutaka Sejima, Yoshihiro Watanabe, Tomio 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 System Engineering 2-16-1 Tokiwadai Ube Yamaguchi Japan Faculty of Computer Science and System Engineering Okayama Prefectural University CREST 111 Kuboki Soja Okayama Japan

ISBN: (纸本)9781424478200

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 real-time 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. ©2010 IEEE.

关键词： Video conferencing

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A new accurate technique for Iris boundary detection

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WSEAS Transactions on computers 2010年第6期9卷 654-663页

作者： Shamsi, Mahboubeh Saad, Puteh Bt Ibrahim, Subariah Bt Rasouli, Abdolreza Abdulrahim, Nazeema Bt Faculty of Computer Science and Information System University Technology Malaysia Skudai Johor 81310 Malaysia

The Iris based identification systems have been noticed exceedingly, presently. In this process, the iris should be segmented from captured eye image. The low contrast between pupil and iris, usually, will harden the segmenting process and will decrease the accuracy of detecting boundary between them. In order to segment the iris more precise, we propose a new technique using a difference function and a factor matrix. We also modify the segmentation operator to detect the pupil and iris as ellipse instead of circle. Experiments show that the proposed technique can segment the iris region and pupil region precisely. Based on our result, 99.34% of eyes have been segmented accurately in 1.24s averagely.

关键词： Functions

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Noninvasive biosignal measurement of a subject in bed using ceramic sensors

Noninvasive biosignal measurement of a subject in bed using ...

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作者： Shino, Toshihiro Watanabe, Kajiro Kobayashi, Kazuyuki Suzuki, Kaoru Kurihara, Yosuke System Control Engineering Department Faculty of Engineering Hosei University Koganei-shi Tokyo Japan Department of Computer and Information Science Faculty of Science and Technology Seikei University Musashino-shi Tokyo Japan

This paper describes a novel noninvasive method for sensing heartbeat, respiration and body-movement biosignals of a subject in bed by using ceramic piezo devices set under the legs of the bed. © 2010 SICE.

ISBN: (纸本)9784907764364

关键词： Noninvasive medical procedures

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Botnet detection based on common network behaviors by utilizing Artificial Immune system(AIS)

Botnet detection based on common network behaviors by utiliz...

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International Conference on Software technology and Engineering (ICSTE)

作者： Hossein Rouhani Zeidanloo Farhoud Hosseinpour Parnian Najafi Borazjani Faculty of Computer Science and Information System University of Technology Kuala Lumpur Malaysia

Botnet is most widespread and occurs commonly in today's cyber attacks, resulting in serious threats to our network assets and organization's properties. Botnets are collections of compromised computers (Bots) which are remotely controlled by its originator (BotMaster) under a common Commond-and-Control (C&C) infrastructure. In this paper, we proposed a new general Botnet detection framework. Since Artificial Immune system (AIS) is a new bio-inspired model which is applied for solving various problems in the field of information security, we used this concept in our proposed framework to make it more efficient. Our framework is based on definition of Botnets. Botnet has been defined as a group of bots that perform similar communication and malicious activity patterns within the same Botnet. We utilized AIS to effectively detect malicious activities such as spam and port scanning in bot infected hosts.

关键词： Detectors Artificial immune systems Monitoring Unsolicited electronic mail computers Databases

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