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IEEE International Conference on systems, Man and Cybernetics

作者： Chunnian Liu Ning Zhong Department of Computer Science Beijing Polytechnic University Beijing China Department of Computer Science and System Engineering Faculty of Engineering Yamaguchi University Ube Japan

ISBN: (纸本)0780347781

In our GLS (global learning scheme) system, KDD (knowledge discovery in databases) process is modeled as an organized society of intelligent agents (called KDD agents). KDD process planning is a meta-agent in this framework, and some basic AI planning techniques have been used to organize dynamically the KDD process so that the GLS system increases both autonomy and versatility. In this paper, we address some deeper issues concerning KDD process planning. Especially we propose a mechanism integrating process planning with process controlling to formalize process iteration (that is, the re-execution of some agents). In this mode, execution failures causing process iteration, feedback paths and re-execution of the agents in the paths (and even the iterating number for each loop) are determined dynamically and automatically. With this and other deeper issues (such as process evolution) being properly handled, the GLS system is more complete in KDD process modeling, and more flexible and robust for practical use.

关键词： Process planning Automatic control Control systems Intelligent agent Process control Artificial intelligence Production systems Databases Feedback loop Robustness

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Evaluation of Emotion by Using Peripheral Skin Temperature: The Effectiveness of Measurement on the Back of Finger

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IFAC Proceedings Volumes 1998年第26期31卷 347-351页

作者： Tomio Watanabe Masashi Okubo Tsutomu Kuroda Faculty of Computer Science and System Engineering Okayama Prefectural University 111 Kuboki Soja Okayama JAPAN 719-1197

From the measurement of peripheral skin temperatures on the nose, temporalis, back of finger, and ankle simultaneously by thermistors and a thermography on the condition that peripheral blood vessels contract in smoking, it is demonstrated that the back of finger is most useful for the measurement area of skin temperature. The measurement of skin temperature on the back of finger in watching a scare video that is seized with fear is made for confirmation of the effectiveness, which is demonstrated from the result that the skin temperature on the back of finger for the scare dropped statistically in 18 subjects in comparison with that in watching a scenery video.

关键词： Human Interface Emotion Skin Temperature Physiological Measurement

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Analysis of superimposed signals using time-scale phase representation

Analysis of superimposed signals using time-scale phase repr...

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IEEE-SP International Symposium on Time-Frequency and Time-Scale Analysis

作者： A. Sostaric D. Zazula System Software Laboratory Faculty of Electrical Engineering and Computer Science University of Maribor Maribor Slovenia

In this paper we address the decomposition problem of electromyographic signals (EMG) and we present a new idea for the decomposition approach introducing the time-scale phase representation. Considering the nature of EMG signals, a special set of nonorthogonal conjugated basis functions is used to perform the time-scale analysis. Mapping the modified signal phase into the time-scale phase plane is applied. Its minimization leads towards a very good time localization of individual superimposed signal components.

关键词： Signal analysis Electromyography Muscles Shape Wavelet analysis Frequency domain analysis system software Laboratories computer science Performance analysis

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A Design of Generalized Minimum Variance Controllers for Nonlinear systems

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IFAC Proceedings Volumes 1998年第22期31卷 357-362页

作者： Toshitaka Oki Toru Yamamoto Masahiro Kaneda Akira Shimizu Faculty of Computer Science and System Engineering Okayama Prefectural University 111 Kuboki Soja Okayama 719-1197 Japan Faculty of Engineering Ehime University 3 Bunkyo-cho Matsuyama Ehime 790-8577 Japan

The generalized minimum variance control (GMVC) method was proposed by Clarke, and it was developed by Allidina taking into account of the closed-loop properties. However, these methods could not be applied to nonlinear systems. In this paper, a new design method of GMVC for nonlinear systems is proposed. This method is a kind of the hybrid controllers by using linear controllers and neural networks (NN). The GMVC law is derived for the known linear model of the controlled object, and the NN learns to compensate the modeling error. Finally, a numerical simulation example is illustrated in order to show the effectiveness of the proposed method.

关键词： Nonlinear systems Modeling errors Time delay Pole assignment Neural networks Backpropagation Minimum variance control

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Derivation of invariant features using scale factors from a neural network

Derivation of invariant features using scale factors from a ...

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International Joint Conference on Neural Networks (IJCNN)

作者： P. Raveendran S. Omatu Poh Sin Chew Engineering Faculty Universiti Malaya Kuala Lumpur Malaysia Department of Computer and System Science College of Engineering University of Osaka Salai Osaka Japan

Conventional regular moments are only invariant to translation, rotation and equal scaling. It is shown that the conventional regular moment-invariants remain no longer invariant when the image is scaled unequally in the x- and y-directions. The paper addresses this problem by presenting a technique to make the moments invariant to unequal scaling. Consequently, we would be able to obtain features for images that are translated, scaled equally/unequally and rotated. The problem is formulated using conventional regular moments. A neural network is trained to estimate the reference scale factor and together with another computed factor obtained from an equation involving the angle of rotation, the scaling ratio for the particular images can be obtained. From this, moments can be made invariant to unequal scaling. Invariance of rotation is achieved by using the principle axis method to determine the angle of rotation and consequently the moments of the image can be derived in its unrotated form. Validity of this method is demonstrated by experiment.

关键词： Neural networks Layout Pattern recognition Image recognition Silicon compounds Equations Pattern matching Pattern analysis Reflection Marine vehicles

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Exciton localization in InGaN quantum well devices

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Journal of Vacuum science & Technology B: Microelectronics Processing and Phenomena 1998年第4期16卷 2204-2204页

作者： Chichibu, Shigefusa Sota, Takayuki Wada, Kazumi Nakamura, Shuji Materials Department University of California Santa Barbara California 93106 Faculty of Science and Technology Science University of Tokyo Noda Chiba 278-8510 Japan Department of Electrical Electronics and Computer Engineering Waseda University Shinjuku Tokyo 169-8555 Japan Compound Semiconductor Materials Research NTT System Electronics Laboratories Atsugi Kanagawa 243-0198 Japan Department of Research and Development Nichia Chemical Industries Limited Kaminaka Anan Tokushima 774-8601 Japan

Emission mechanisms of a device-quality quantum well (QW) structure and bulk three dimensional (3D) InGaN materials grown on sapphire substrates without any epitaxial lateral overgrown GaN base layers were investigated. The InxGa1−xN layers showed various degrees of in-plane spatial potential (band gap) inhomogeneity, which is due to a compositional fluctuation or a few monolayers thickness fluctuation. The degree of fluctuation changed remarkably around a nominal InN molar fraction x=0.2, which changes to nearly 0.08–0.1 for the strained InxGa1−xN. This potential fluctuation induces localized energy states both in the QW and 3D InGaN, showing a large Stokes-like shift. The spontaneous emission from undoped InGaN single QW light-emitting diodes (LEDs), undoped 3D LEDs, and multiple QW (MQW) laser diode (LD) wafers was assigned as being due to the recombination of excitons localized at the potential minima, whose lateral size was determined by cathodoluminescence mapping to vary from less than 60 to 300 nm in QWs. Those structures are referred to as quantum disks (Q disks) or segmented QWs depending on the lateral size. Blueshift of the emission peak by an increase of the driving current was explained to be combined effects of band filling of the localized states by excitons and Coulomb screening of the quantum confined Stark effect induced by the piezoelectric field. The lasing mechanisms of the continuous wave In0.15Ga0.85N MQW LDs having small potential fluctuations can be described by the well-known electron-hole-plasma (EHP) picture. However, the inhomogeneous MQW LDs are considered to lase by EHP in segmented QWs or Q disks. It is desirable to use entire QW planes with small potential inhomogeneity as gain media for higher performance LD operation.

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Plant inspection and diagnosis robot for the detection of a faulty machine part by GA control

Plant inspection and diagnosis robot for the detection of a ...

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Proceedings. 1998 IEEE/RSJ International Conference on Intelligent Robots and systems. Innovations in Theory, Practice and Applications (Cat. No.98CH36190)

作者： Peng Chen Y. Sasaki S. Nakayama T. Toyota Faculty of Computer Science and System Engineering Kyushu Institute of Technology Fukuoka Japan University of Tokyo Tokyo Japan Yonago National of Technology Yonago-City Tottori Japan

The purpose of this study is to develop the basic theories and techniques for a plant inspection and diagnosis robot (IDR). The robot dealt with in this study will work in a large scale unmanned plant or a place with dangerous environment. It has the ability to monitor the condition of plant machinery with only few sensors, and quickly to discriminate machine failures, in order to guarantee both the quality and quantity of production against accident. The paper proposes a method for detecting a faulty part of a plant machine by the robot. A manipulator installed on the IDR is controlled by genetic algorithms (GA). A microphone installed on the manipulator tip is used to detect a failure signal. It is navigated to the nearby front of the faulty part by sound information and GA control. The method has been proved by practical applications.

关键词： Inspection Fault diagnosis Fault detection Robot sensing systems Manipulators Large-scale systems Condition monitoring Machinery Production Accidents

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Nonlinear behavior of electromagnetic waves in the YIG film microstrip line

Nonlinear behavior of electromagnetic waves in the YIG film ...

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Microwave, MTT-S International Symposium

作者： M. Tsutsurni T. Ueda K. Okubo Dept. of Electron. & Inf. Sci. Kyoto Inst. of Technol. Japan Department of Electronics and Information Science Kyoto Institute of Technology Matsugasaki Kyoto Japan Faculty of Computer Science and System Engineering Okayama Prefectural University Okayama Japan

The limiter and microwave soliton behavior were experimentally demonstrated in the microstrip line using the 20 /spl mu/m thick yttrium iron garnet film substrate at S band. These nonlinear phenomena were explained by the strong coupling between quasi-TEM and magnetostatic forward volume wave modes at magnetic resonance frequency of /spl gamma//spl mu//sub 0/H/sub 0//2/spl pi/ from an implicit dispersion relation of the stripline.

关键词： Electromagnetic scattering Magnetic resonance Magnetic films Solitons Microstrip Yttrium Iron Garnet films Substrates Couplings

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Shape recovery of specular objects from multiple lights

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systems and computers in Japan 1998年第14期28卷

作者： Akio Murata Jiang Yu Zheng Yoshihiro Fukagawa Norihiro Abe Faculty of Computer Science and System Engineering Kyushu Institute of Technology Iizuka Japan 820

This paper describes the method of shape recovery of specular objects illuminated by multiple light sources by pattern recognition. In this method, a three-dimensional shape is recovered from an epipolar plane image (EPI) of a rotating image. The highlight reflected from an object has a traveling characteristic corresponding to the surface profile of the object. The highlight appears in EPI as image speed. Therefore, the three-dimensional shape can be quantitatively recovered by tracing the locus of the highlight on EPI if the relationship among the shape of the object, light source, direction of view, and highlight is equated. In this study, the relationship among the object shape under illumination from multiple light sources, direction of view, and highlight is equated in order to quantitatively recover the cross-sectional view of a columnar object. In addition, three-dimensional shape recovery of a general object is accomplished by introducing the light source model of a cone-shaped illumination plane. Finally, in order to show the validity of this method, the experimental result on the recovery of specular objects and its evaluation will be described. © 1998 Scripta Technica. Syst Comp Jpn, 28(14): 11–20, 1997

关键词： specular reflection highlight EPI cross-sectional view three-dimensional shape recovery

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Motion simulation of virtual varicolored carp based on the vibration wing theory

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Kyokai Joho Imeji Zasshi/Journal of the Institute of Image Information and Television Engineers 1998年第9期52卷 1374-1374页

作者： Manabe, Takahide Harima, Toshio Anzai, Yuichi Chiba, Norishige Saito, Nobuji Ricoh System Development Inc. Totuka-ku Yokohama-shi 244-0817 292 Yoshida-cho Japan Department of Communication Engineering Tohoku Institute of Technology Taihaku-ku Sendai-shi 982-0831 35-l Yagiyama Kasumi-cho Japan Department of Computer Science Faculty of Engineering Iwate University Morioka-shi 020-0066 4-3-5 Ueda Japan

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