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Electronic Components and Technology Conference (ECTC)

作者： Dong Gun Kam Heeseok Lee Seungyong Baek Bongcheol Park Joungho Kim Terahertz Media and System Laboratory Division of Electrical Engineering Department of Electrical Engineering and Computer Science KAIST Taejon South Korea

The concept of twisted pair on the cable interconnection can be readily applied to the differential lines on printed circuit board (PCB), which enables enhanced immunity against crosstalk and radiated emission. In this paper, twisted differential line (TDL) is implemented on PCB and fully characterized. First, the transmission characteristics of TDL including propagation constant and differential impedance are extracted by using 3D full-wave analysis. The potential of TDL for the transmission of over GHz signal and enhanced immunity against crosstalk and radiated emission is clearly shown. Second, the measurement results reconfirm TDL's capability as a good transmission line structure over several GHz. Also, it is modeled by a simple equivalent circuit, based on measurement results. Third, the enhanced immunity of TDL against crosstalk and radiated emission is clearly demonstrated by measurement results. TDL is compared with other transmission line structures showing its superiority. Finally, several ideas to improve TDL's performance are suggested and verified to be useful.

关键词： Printed circuits Electromagnetic interference Crosstalk Transmission line measurements Distributed parameter circuits Power cables Integrated circuit interconnections Propagation constant Impedance Equivalent circuits

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Real-time facial patterns mining and emotion tracking 3rd

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3rd International Conference on Advances in Web-Age Information Management, WAIM 2002

作者： Xiang, Zhenggui Yao, Tianxiang Li, Jiang Yu, Keman State Key Laboratory of Intelligent Technology and Systems Dept of Computer Science and Tech Tsinghua University Beijing China Dept of Information System and Electrical Engineering Zhejiang University Zhejiang China Internet Media Group Microsoft Research Asia Beijing China

ISBN: (纸本)9783540440451

In this paper, we present a real-time method for mining the facial patterns and tracking the facial emotion. We first recognize the facial patterns based on a nonsupervised idea of pattern mining from video. To raise the mining speed, we adopt some simple and rapid filters called Gabor-like filters to mine individual feature patterns. To evaluate the facial patterns, we match deformable templates and analyze the histogram of local region. To track the mouth contour, we model dynamically the color distribution of lip and skin by EM algorithm and segment lip color by the Bayes classification rule. Finally, we represent the facial emotion with an avatar by transferring some parameters. Through experiments, our method can rapidly mine the facial patterns and track different facial expressions of different people whether they wear glasses or not. © Springer-Verlag Berlin Heidelberg 2002.

关键词： Template matching

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Unit-Cell Modeling of High-Speed Interconnect with Adjacent Metal-Filled Via Array using FDTD method

Unit-Cell Modeling of High-Speed Interconnect with Adjacent ...

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IEEE Workshop on Signal Propagation on Interconnects (SPI)

作者： Heeseok Lee Charlie Park Derek Kam Joungho Kim Terahertz Media and System Laboratory Department of Electrical Engineering and Computer Science Korea Advanced Institute of Science and Technology Taejon South Korea

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A multimedia semantic model for RTSP-based multimedia presentation systems 4

A multimedia semantic model for RTSP-based multimedia presen...

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4th International Symposium on Multimedia Software engineering, MSE 2002

作者： Chen, Shu-Ching Li, Sheng-Tun Shyu, Mei-Ling Zhan, Chengjun Zhang, Chengcui Distributed Multimedia Information System Laboratory School of Computer Science Florida International University MiamiFL33199 United States Department of Information Management National Kaohsiung First University of Science and Technology Juoyue Rd. Nantz District Kaohsiung811 Taiwan Department of Electrical and Computer Engineering University of Miami Coral GablesFL33124 United States

ISBN: (纸本)0769518575

An abstract multimedia semantic model called the multimedia augmented transition network (MATN) model is proposed to model the RTSP-based (real-time streaming protocol) multimedia presentation systems. RTSP provides a set of methods to support the functionality of "VCR-like" remote control on the client side so that users are allowed to control playback of the streaming media. The MATN model is used to model RTSP actions as well as temporal relations and synchronization control of the media streams. The advantages of using the MATN model are its simplicity, effectiveness, and ease of modification. Furthermore, a formal definition of the MATN model and modeling of RTSP actions using the MATN model are presented in detail. © 2002 IEEE.

关键词： Remote control

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IDENTIFYING TOPICS FOR WEB DOCUMENTS THROUGH FUZZY ASSOCIATION LEARNING

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International Journal of Computational Intelligence and Applications 2002年第3期2卷 277-285页

作者： CHOOCHART HARUECHAIYASAK MEI-LING SHYU SHU-CHING CHEN Department of Electrical and Computer Engineering University of Miami Coral Gables FL 33124-0640 USA Distributed Multimedia Information System Laboratory School of Computer Science Florida International University Miami FL 33199 USA

Due to the explosive growth of available information on the World Wide Web (WWW), users have suffered from the information overload. To alleviate this problem, there is a need for an intelligent tool to help the users screening and filtering for interesting and useful information. In this paper, a method of automatically identifying topics for Web documents via a classification technique is proposed. Topic identification can be applied as a filtering tool for recommender systems to prune down the number of documents to within some particular topics. We adopt the fuzzy association concept as a machine learning technique to classify the documents into some predefined categories or topics. Our approach is compared to the vector space model with the cosine coefficient using the data sets collected from three different Web portals: Yahoo!, Open Directory Project and Excite. The results show that our approach yields higher classification accuracy compared to the vector space model.

关键词： Topic identification text mining information filtering document classification fuzzy association learning

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Mining diabetes database with decision trees and association rules

Mining diabetes database with decision trees and association...

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Annual IEEE Symposium on computer-Based Medical systems

作者： M. Zorman G. Masuda P. Kokol R. Yamamoto B. Stiglic Laboratory for system design Faculty of electrical engineering and computer science University of Maribor Slovenia Osaka Medical College Takatsuki Osaka Japan

Searching for new rules and new knowledge in problem areas, where very little or almost none previous knowledge is present, can be a very long and demanding process. In our research we addressed the problem of finding new knowledge in the form of rules in the diabetes database using a combination of decision trees and association rules. The first question we wanted to answer was, if there are significant differences in sets of rules both approaches produce, and how rules, produced by decision trees behave, after being a subject of filtering and reduction, normally used in association rule approaches. In order to accomplish that, we had to make some modifications to both the decision tree approach and association rule approach. From the first results we can conclude, that the sets of rules, built by decision trees are much smaller than the sets created by association rules. We could also establish, that filtering and reduction did not effect the rules derived from decision trees in the same scale as association rules.

关键词： Data mining Diabetes Databases Decision trees Association rules Filtering Educational institutions Medical diagnostic imaging Electrical engineering computer science

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Design Guidelines of Spread Spectrum Clock for Suppression of Radiation and Interference from High-speed Interconnection Line

Design Guidelines of Spread Spectrum Clock for Suppression o...

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IEEE Workshop on Signal Propagation on Interconnects (SPI)

作者： Jonghoon Kim Piljung Jun Jung-gun Byun Joungho Kim Terahertz Media and System Laboratory Division of Electrical Engineering Department of Electrical Engineering and Computer Science KAIST Daejeon South Korea Samsung Electronics Company Limited South Korea

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Scene change detection by audio and video clues

Scene change detection by audio and video clues

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IEEE International Conference on Multimedia and Expo (ICME)

作者： Shu-Ching Chen Mei-Ling Shyu Wenhui Liao Chengcui Zhang Distributed Multimedia Information System Laboratory School of Computer Science Florida International University Miami FL USA Department of Electrical and Computer Engineering University of Miami Coral Gables FL USA

Automatic video scene change detection is a challenging task. Using audio or visual information alone often cannot provide a satisfactory solution. However, how to combine audio and visual information efficiently still remains a difficult issue since there are various cases in their relationship due to the versatility of videos. We present an effective scene change detection method that adopts the joint evaluation of the audio and visual features. First, video information is used to find the shot boundaries. Second, the audio features for each video shot can be extracted. Lastly, an audio-video combination schema is proposed to detect the video scene boundaries.

关键词： Layout Gunshot detection systems Data mining Change detection algorithms Multimedia systems Information systems Laboratories computer science Distributed computing Visual effects

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Web document classification based on fuzzy association

Web document classification based on fuzzy association

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IEEE Annual International computer Software and Applications Conference (COMPSAC)

作者： C. Haruechaiyasak Mei-Ling Shyu Shu-Ching Chen Department of Electrical and Computer Engineering University of Miami Coral Gables FL USA Distributed Multimedia Information System Laboratory School of Computer Science Florida International University Miami FL USA

In this paper, a method of automatically classifying web documents into a set of categories using the fuzzy association concept is proposed. Using the same word or vocabulary to describe different entities creates ambiguity, especially in the web environment where the user population is large. To solve this problem, fuzzy association is used to capture the relationships among different index terms or keywords in the documents, i.e., each pair of words has an associated value to distinguish itself from the others. Therefore, the ambiguity in word usage is avoided. Experiments using data sets collected from two web portals: Yahoo! and Open Directory Project are conducted. We compare our approach to the vector space model with the cosine coefficient. The results show that our approach yields higher accuracy compared to the vector space model.

关键词： World Wide Web Database systems Information retrieval Fuzzy logic Fuzzy sets Web mining Multimedia systems Laboratories Portals Data mining

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Optimal bandwidth allocation scheme with delay awareness in multimedia transmission

Optimal bandwidth allocation scheme with delay awareness in ...

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IEEE International Conference on Multimedia and Expo (ICME)

作者： Mei-Ling Shyu Shu-Ching Chen Hongli Luo Department of Electrical and Computer Engineering University of Miami Coral Gables FL USA Distributed Multimedia Information System Laboratory School of Computer Science Florida International University Miami FL USA

Recently, efficient network resource management and quality-of-service (QoS) guarantee become more and more important for multimedia applications and services, especially when considering network delays. An optimal bandwidth allocation scheme is introduced. It achieves maximal utilization of the client buffer and minimal allocation of bandwidth for each client. The proposed scheme allocates bandwidth to multiple clients requesting services from a server by adjusting the transmission rates based on the client buffer occupancy, the playback requirements of the individual client and the network delays. Simulations for the single client and multiple client scenarios are conducted under different network congestion levels. The simulation results show that our approach performs better in comparison with the fixed rate allocation approach and the rate by playback requirement approach, since it avoids underflows and overflows efficiently and provides QoS for more clients with limited available bandwidth in the network.

关键词： Channel allocation Delay Bandwidth Network servers Communication system traffic control Resource management Multimedia systems Internet Statistics Streaming media

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