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IEEE/ASME (AIM) International Conference on Advanced Intelligent Mechatronics

作者： T. Yamada T. Watanabe Electronic Mechanical Engineering Department Yuge National College of Maritime Technology Ochi Ehime Japan Faculty of Computer Science and System Engineering Okayama Prefectural University CREST of Japan Science and Technology Agency Okayama Japan

In this paper, we develop a 4-DOF force display system for the analysis by synthesis of facial color for the interaction with anthropomorphic agent. By using the system, we analyze the changes in facial skin temperature and facial color associated with circulation dynamics in response to forced actions. On the basis of the analysis, we propose a synthetic method for the affect display of virtual face with facial color and expression in force display, and the effectiveness of the method is confirmed. Finally, we develop a prototype of virtual arm wrestling system with anthropomorphic agent using synthesized dynamic three-dimensional facial color and expression.

关键词： Force feedback Image color analysis computer displays Valves Humans Skin Virtual prototyping Force sensors Drives Torque

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Classification of load change transients and incipient abnormalities in underground cable using pattern analysis techniques

Classification of load change transients and incipient abnor...

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IEEE PES Transmission and Distribution Conference and Exposition

作者： M.J. Mousavi K.L. Butler-Purry R. Gutierrez-Osuna M. Najafi Department of Electrical Engineering Power System Automation Laboratory Texas A and M University College Station TX USA Department of Electrical Engineering Power System Automation Laboratory College Station TX Department of Computer Science Texas A&M University College Station TX USA Department of Mechanical Engineering Texas A&M University College Station TX USA

This paper presents a feasibility study on the application of pattern analysis techniques to classify load change transients and incipient abnormalities in an underground distribution cable lateral. The data were collected using an on-line monitoring system installed in a residential area in Dallas. A set of features obtained from wavelet packet analysis was evaluated. Methods of dimensionality reduction were employed to overcome the curse of dimensionality while preserving a good classification rate. The classification results using k-nearest-neighbor (KNN) classifiers show that the proposed methodology can be used to classify load change transients and incipient abnormalities.

关键词： Transient analysis Pattern analysis Tellurium Power cables Power system transients Wavelet analysis Wavelet packets Automation Laboratories Electrical fault detection

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Real time voice processing with audiovisual feedback: Toward autonomous agents with perfect pitch 15

Real time voice processing with audiovisual feedback: Toward...

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16th Annual Neural Information Processing systems Conference, NIPS 2002

作者： Saul, Lawrence K. Lee, Daniel D. Isbell, Charles L. LeCun, Yann Department of Computer and Information Science University of Pennsylvania 200 South 33rd St Philadelphia PA 19104 United States Department of Electrical and System Engineering University of Pennsylvania 200 South 33rd St Philadelphia PA 19104 United States Georgia Tech College of Computing 801 Atlantic Drive Atlanta GA 30332 United States NEC Research Institute 4 Independence Way Princeton NJ 08540 United States

ISBN: (纸本)0262025507

We have implemented a real time front end for detecting voiced speech and estimating its fundamental frequency. The front end performs the signal processing for voice-driven agents that attend to the pitch contours of human speech and provide continuous audiovisual feedback. The algorithm we use for pitch tracking has several distinguishing features: it makes no use of FFTs or autocorrelation at the pitch period;it updates the pitch incrementally on a sample-by-sample basis;it avoids peak picking and does not require interpolation in time or frequency to obtain high resolution estimates;and it works reliably over a four octave range, in real time, without the need for postprocessing to produce smooth contours. The algorithm is based on two simple ideas in neural computation: the introduction of a purposeful nonlinearity, and the error signal of a least squares fit. The pitch tracker is used in two real time multimedia applications: a voice-to-MIDI player that synthesizes electronic music from vocalized melodies, and an audiovisual Karaoke machine with multimodal feedback. Both applications run on a laptop and display the user's pitch scrolling across the screen as he or she sings into the computer.

关键词： Signal processing

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Selective 2-versioning for concurrency control in data warehousing systems: S2V

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International Journal of computer Applications in Technology 2003年第4期17卷 263-271页

作者： Kim, Jinbae Shin, Dongcheon Moon, Songchun Department of Computer Science Anyang Technical College San 39-1 Anyang 3 Manan Anyang Gyeonggi 430-749 Korea Republic of Department of Information System Chung-Ang University 72-1 Naeri Daeduck Ansung Gyeonggi 456-756 Korea Republic of Graduate School of Management Korea Adv. Inst. of Sci./Technology 207-43 Cheongryang Dongdaemun Seoul 130-012 Korea Republic of

To speed up on-line analytical processing, data warehousing systems materialize views derived from several operational databases. When the operational databases happen to change, the materialized views get stale. To enhance the freshness of the materialized views, we proposed a new concurrency control scheme, which enables a number of update transactions to execute concurrently with analytical transactions. When an update transaction attempts to modify the data that is using by any analytical transactions, this scheme immediately allows the update transaction to create a new transient version for the data. Due to this selective versioning, analytical transactions could continuously access fresh data.

关键词： Concurrent engineering

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An External Broker Interface Based on Existing Trading Protocols

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Electronic Commerce Research 2002年第4期2卷 337-358页

作者： Patel, Ahmed Blinov, Mikhail Computer Networks and Distributed Systems Research Group Department of Computer Science University College Dublin Belfield Dublin 4 Ireland

This paper presents an approach to the specification of external interfaces of an electronic broker used in the Architecture for Electronic Brokerage systems (AEBS). The external interface specified by the AEBS architecture provides both rich functionality and backward compatibility with trading methods that are currently in use in the electronic marketplace. This is achieved by defining the interface at two levels: the external protocol interface and the external object interface. The external protocol interface has been defined in terms of traditional protocols in order to provide access to basic brokerage services for customers and suppliers that already operate in the electronic market. This facilitates the easy introduction of a broker to the market since no modifications are required on the customer or supplier side to use the new brokerage services. The advanced external object interface has been designed and defined using the CORBA model. This provides other actors that need advanced brokerage services with access to the full functionality of a broker. This paper focuses on the design of the external protocol interface of a brokerage system. © 2002, Kluwer Academic Publishers.

关键词： Electronic commerce

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On the complexity of plan adaptation by derivational analogy in a universal classical planning framework 6

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6th European Conference on Case-Based Reasoning, ECCBR 2002

作者： Au, Tsz-Chiu Muñoz-Avila, Héctor Nau, Dana S. Department of Computer Science and Institute for System Research University of Maryland College ParkMD20742 United States Department of Computer Science and Engineering Lehigh University BethlehemPA18015 United States

ISBN: (纸本)3540441093

In this paper we present an algorithm called DerUCP, which can be regarded as a general model for plan adaptation using Derivational Analogy. Using DerUCP, we show that previous results on the complexity of plan adaptation do not apply to Derivational Analogy. We also show that Derivational Analogy can potentially produce exponential reductions in the size of the search space generated by a planning system. © Springer-Verlag Berlin Heidelberg 2002.

关键词： Artificial intelligence

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A controller design for reference signal with the N-th power of time

A controller design for reference signal with the N-th power...

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SICE Annual Conference

作者： M. Kosaka H. Uda H. Shibata Department of Mechanical Engineering Faculty of Science and Engineering Kinki University Higashi-Osaka Osaka Japan Department of Computer and System Sciences College of Engineering Osaka Prefecture University Sakai Osaka Japan

In this paper, we propose a new controller design method, where the identification technique, which directly acquires any order of reduced model, is applied to the feedforward controller design composed of time delays and inverse dynamics of a controlled object. By applying the proposed controller, the tracking error with reference signal of the N-th power of t becomes zero when the future reference signal is available. The resulting system has neither deterioration in the feedback characteristics nor increase in the tuning man-hour because feedforward controllers do not affect the feedback characteristics and the feedback controller can be designed with the accumulated know-how.

关键词： Signal design Error correction Control systems Feedback Proportional control Open loop systems Adaptive control Polynomials Signal processing Design engineering

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A massively parallel algorithm based on DNA computations for constructing minimal spanning trees

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Journal of Discrete Mathematical sciences and Cryptography 2002年第2期5卷 199-214页

作者： Chiu, Chin Ching Yeh, Yi-Shiung Department of Management Information System Private Takming College Taipei 56 Sec. 1 Huan Shan Rd. Ney Hwu Taiwan Institute of Computer Science and Information Engineering National Chiao Tung University Hsinchu Taiwan

Although much work has been done on constructing minimal spanning trees, no studies have attempted to solve this problem using DNA computation. This paper describes the first DNA algorithm for constructing minimal spanning trees. In 1994, Leonard M. Adleamn used biological experiments with DNA strands to solve computation problems. The potential benefits of using this particular molecule are enormous due to the massive inherent parallelism of performing concurrent operations on trillions ofstrands. The proposed algorithm will randomly generate all possible solutions to the problem at hand and isolate the correct solution through repeated separations of the DNA into incorrect solutions and potentially good solutions. This algorithm is simpler than convention algorithms in many aspects such as no requirement for checking the processing elements concurrently, asynchronously, infinite loop, deadlock etc. © 2002 Taylor & Francis Group, LLC.

关键词： computer communication DNA computation Minimum spanning tree

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Several results on de Morgan algebra and Kleene algebra of fuzzy logic

Several results on de Morgan algebra and Kleene algebra of f...

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IEEE International Conference on Fuzzy systems (FUZZ-IEEE)

作者： Jianming Deng M. Umano T. Oda Y. Uno Department of Computer Science and Engineering South-East University Nanjing China Department of Mathematics and Information Sciences College of Integrated Arts and Sciences Osaka Prefecture University Japan Department of Marketing and Information System Faculty of Management and Information Science Aichi Institute of Technology Japan

We present several results on de Morgan algebras and Kleene algebras of fuzzy logic. The main results include (1) a necessary and sufficient condition for a de Morgan algebra to be a Kleene algebra, (2) equivalence of some expressions, (3) some properties about de Morgan algebras with sup W/sup +/ and inf W/sup -/, (4) some properties of the de Morgan algebras which satisfy certain special conditions, (5) a method to obtain all fixed points of a de Morgan algebra and (6) extensions of some theorems on complete de Morgan algebras that have fixed points to the general case.

关键词： Algebra Fuzzy logic Sufficient conditions Lattices Mathematics Educational institutions Art computer science Management information systems Information management

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A 2-V CMOS 455-kHz FM/FSK demodulator using feedforward offset cancellation limiting amplifier

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IEEE Journal of Solid-State Circuits 2001年第1期36卷 135-138页

作者： Po-Chiun Huang Yi-Huei Chen Chorng-Kuang Wang Circuit Design Engineering Division MediaTek Inc. Hsinchu Taiwan System-on-Chip Technology Center Industrial Technology and Research Institute Hsinchu Taiwan Department of Electrical Engineering College of Electrical Engineering and Computer Science National Taiwan University Taipei Taiwan

This paper presents a low-voltage low-power IF 455-kHz signal processor that contains a three-stage limiting amplifier and an FM/FSK demodulator. The limiting amplifier uses an on-chip feedforward offset cancellation circuit. The FM/FSK demodulator employs a quadrature detector that is composed of an on-chip phase detector and an external tank phase shifter. The demodulation constant is 20 mV/kHz with masimum /spl plusmn/10-kHz frequency deviation. The IF signal processor that consumes 2.3 mW from a single 2-V power supply demonstrates a high sensitivity of -72 dBm. It occupies an active area of 0.2 mm/sup 2/ using 0.6-/spl mu/m digital CMOS technology.

关键词： Frequency shift keying Demodulation Limiting Detectors Signal processing Phase detection CMOS technology Integrated circuit technology Automatic control Communication system control

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