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Development of abnormality detection system for bathers using ultrasonic sensors

IEEJ Transactions on Sensors and Micromachines 2006年第12期126卷 662-668+6页

作者： Ohnishi, Yosuke Abe, Takehiko Nambo, Hidetaka Kimura, Haruhiko Ogoshi, Yasuhiro Graduate School of Natural Science and Technology Kanazawa University Kakuma Kanazawa Ishikawa 920-1192 Japan Division of Informatics and Human Communication Kanazawa Institute of Technology 3-1 Yatsukaho Hakusan Ishikawa 924-0838 Japan Department of Human and Artificial Intelligent Systems Faculty of Engineering Fukui University 3-9-1 Bunkyo Fukui 910-8507 Japan

This paper proposes an abnormality detection system for bather sitting in bathtub. Increasing number of in-bathtub drowning accidents in Japan draws attention. Behind this large number of bathing accidents. Japan's unique social and cultural background come surface. For majority of people in Japan, bathing serves purpose in deep warming up of body, relax and enjoyable time. Therefore it is the custom for the Japanese to soak in bathtub. However overexposure to hot water may cause dizziness or fainting, which is possible to cause in-bathtub drowning. For drowning prevention, the system detects bather's abnormal state using an ultrasonic sensor array. The array, which has many ultrasonic sensors, is installed on the ceiling of bathroom above bathtub. The abnormality detection system uses the following two methods: posture detection and behavior detection. The function of posture detection is to estimate the risk of drowning by monitoring bather's posture. Meanwhile, the function of behavior detection is to estimate the risk of drowning by monitoring bather's behavior. By using these methods, the system detects bathers' different state from normal. As a result of experiment with a subject in the bathtub, the system was possible to detect abnormal state using subject's posture and behavior. Therefore the system is useful for monitoring bather to prevent drowning in bathtub.

关键词： Ultrasonic devices

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The Design for Wireless Surroundings Measurement System within Car

The Design for Wireless Surroundings Measurement System with...

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International Conference on ITS Telecommunications (ITST)

作者： Soojung Hur Yongwan Park Wankyo Jeong Jeonghun Shin Laboratory of Intelligent and Communicating Systems Engineering Faculty of Electronics and Computer Science University of Science and Technology Houari Boumediene (USTHB) Bab Ezzouar Algiers Algeria

It appears that it is possible for us to make a wireless communication of even home-network system within car by integrating with the ubiquitous such as mobile phone, wireless Internet, GPS and DMB in the future. If the present wireless surroundings within the car are connected with very high-speed wireless network as measurement system for wireless communication surroundings within this car in the future, it will develop the complicated communication conditions such as safe checkup, communication between systems within car, and wireless communication for user entertainment unlike universal communication conditions. Accordingly, there is the necessity of the device that can measure the interference of electric wave, communication speed and communication quality by a kind of each car. This paper aims at making the real measurement device to raise the reliability of each Application for inquiring into the interference about each other in the frequency band used under telematics surroundings

关键词： Wireless communication Mobile communication Interference Mobile handsets Internet Global Positioning System Digital multimedia broadcasting Wireless networks Electric variables measurement Velocity measurement

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Switch synchronizing delayed feedback control for piecewise linear systems

Switch synchronizing delayed feedback control for piecewise ...

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IEEE International Symposium on Circuits and systems (ISCAS)

作者： Y. Toyosaki T. Ueta T. Kousaka Department of Information Science and Intelligent Systems Faculty of Engineering University of Tokushima Japan Center for Advanced Information Technology University of Tokushima Japan

This paper proposes switch synchronizing delayed feedback control (abbr. SSDFC) in the piecewise linear systems. This control method weeds out the unsuitable control input from the different piecewise continuous functions. As an illustrated example, we then apply this general methodology to a simple circuit containing state-period dependent switch. The unstable periodic orbit is stabilized effectively in the computer simulations. Finally, the performance of SSDFC is compared with delayed feedback control (DFC)

关键词： Switches Delay Feedback control Piecewise linear techniques Chaos Control systems Digital-to-frequency converters Linear systems Linear feedback control systems Proportional control

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intelligent support to finite element type selection

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WSEAS Transactions on Information science and Applications 2006年第9期3卷 1617-1624页

作者： Novak, Marina Rieg, Frank Dolšak, Bojan Hackenschmidt, Reinhard Laboratory for Intelligent CAD Systems Faculty of Mechanical Engineering University of Maribor Smetanova 17 SI-2000 Maribor Slovenia Department of Engineering Design and CAD Faculty of Engineering Science University of Bayreuth Universitätsstraße 30 D-95440 Bayreuth Germany

Although the finite element analysis represents a well-known numerical solution for complex engineering problems, the right choice of the finite elements that should be used for the analysis is often a problem even for experienced analysts. The paper presents a prototype of the consultative knowledge-based system Z88FESES that was developed to support this initial pre-processing phase of the analysis in order to make it less experience-dependent. The system is adjusted to the freeware finite element analysis program Z88. The knowledge base consists of 24 data-driven production rules that are applied to select the appropriate finite element type out of the list of 20 different types that are available in the current version of the Z88 program. The most appropriate type of finite elements is proposed by the system considering problem description given by the user, who needs to answer some questions interactively. The prototype of the system has been experimentally used in practice within design process, and also as an educational tool. The results of these experiments are encouraging and can be used as guidelines for further developments.

关键词： Computational complexity

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Simplification and analysis of transitive trust networks

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Web Intelligence and Agent systems 2006年第2期4卷 139-161页

作者： Jøsang, Audun Gray, Elizabeth Kinateder, Michael School of Software Engineering and Data Communications Queensland University of Technology Australia Computer Science Department Trinity College Dublin Ireland Institute of Parallel and Distributed Systems Faculty of Computer Science University of Stuttgart Germany

When transacting and interacting through open computer networks, traditional methods used in the physical world for establishing trust can no longer be used. Creating virtual network substitutes with which people, organisations and software agents can derive trust in other parties requires computerised analysis of the underlying trust networks. This article describes an approach to trust network analysis using subjective logic (TNA-SL), that consists of the three following elements. Firstly it uses a concise notation with which trust transitivity and parallel combination of trust paths can be expressed. Secondly it defines a method for simplifying complex trust networks so that they can be expressed in this concise form. Finally it allows trust measures to be expressed as beliefs, so that derived trust can be automatically and securely computed with subjective logic. We compare our approach with trust derivation algorithms that are based on normalisation such as PageRank and EigenTrust. We also provide a numerical example to illustrates how TNA-SL can be applied. © 2006 - IOS Press and the authors. All rights reserved.

关键词： Computer networks

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An integrated system for semantic analysis of Chinese

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WSEAS Transactions on Computers 2006年第9期5卷 1886-1891页

作者： Yan, Jiajun Bracewell, David B. Ren, Fuji Kuroiwa, Shingo Department of Information Science and Intelligent Systems Faculty of Engineering The University of Tokushima Minami-Josanjima-Cho Tokushima-shi 770-8506 Japan School of Information Engineering Beijing University of Posts and Telecommunications Beijing 100876 China

Semantic dependency analysis has extensive applications in Natural Language Processing (NLP). In this paper, we present an integrated system for semantic dependency analysis of Chinese. The system is composed of 3 main modules;Syntactic analysis, headword assignment, and semantic dependency assignment. For the semantic dependency module, many classifiers are tested. Primarily, we focus on assigning headwords and determining semantic relations between headwords and modifiers. For headword assignment, we handcrafted a set of rules and achieved a very high precision of 99.54%. For determining semantic relations, we experiment with four supervised machine learning algorithms with varying features for Headword-Modifier relations assignment, and achieved precision of 84%. The experimental results show that our approaches are an effective step in developing a semantic dependency analyzer for Chinese.

关键词： Natural language processing systems

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On Approximation Capability of Pseudo-linear Shepard Approximation Operators

On Approximation Capability of Pseudo-linear Shepard Approxi...

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IEEE International Conference on Fuzzy systems (FUZZ-IEEE)

作者： I.J. Rudas B. Bede H. Nobuhara K. Hirota Department of Intelligent Engineering Systems John von Neumann Faculty of Informatics Budapest University슠of슠Technology슠and슠Economics Budapest Hungary Department of Computational Intelligence and Systems Science Tokyo Institute of Technology Yokohama Japan

Recently it has been shown that sum and product are not the only operations that can be used in order to define concrete approximation operators but several operations provided by fuzzy logic can be used. In this sense, in the present paper, pseudo-linear approximation operators of Shepard-type are studied from the practical point of view, in function approximation. It is shown that in several cases these outperform classical approximation operators based on sum and product operations.

关键词： Function approximation Approximation methods Polynomials Computational intelligence Fuzzy logic intelligent systems Competitive intelligence systems engineering and theory Informatics Concrete

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The validity of metaphor in Emotion recognizing model

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WSEAS Transactions on Computers 2006年第9期5卷 2049-2055页

作者： Zhang, Yu Ren, Fuji Kuroiwa, Shingo Information Science and Intelligent Systems Faculty of Engineering The University of Tokushima 2-1 Minamijosanjima Tokushima 770-8506 Japan Beijing University of Posts and Telecommunications No. 10 Xi Tu Cheng Road Haidian District Beijing China

Natural language has attracted importance to some researchers working on Emotion recognizing. We have made a Chinese emotion classification model and this time we add a new element to the emotion thesaurus of this model-metaphor. Through the studying of emotion, we find the metaphor is an important way of people's communication in natural language. In this paper, firstly, we introduce every part of our emotion classification model and are focus on the new element of metaphor in our emotion thesaurus. And then we do comparative experiments in order to test our model using metaphor before and after. At last the evaluation of our model is given and our model improved through using metaphor is proved to be a more effective model in recognizing emotion from text.

关键词： Natural language processing systems

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Mechanism approach that unifies AI, and AI with AE

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WSEAS Transactions on Computers 2006年第10期5卷 2204-2211页

作者： Zhong, Yi.X. Ren, Fuji Beijing University of Posts and Telecommunications No.10 Xi Tu Cheng Road Haidian District Beijing China Department of Information Science and Intelligent Systems Faculty of Engineering The University of Tokushima 2-1 Minamijosanjima Tokushima 770-8506 Japan

Intelligence and Emotion are two kinds of phenomena related to humans that are interesting, attractive, important and yet full of mysteries to scientific researchers. Both Artificial Intelligence (AI) and Artificial Emotion (AE) have received more and more attentions from academic as well as engineering circles. As is well known that structuralism, functionalism and behaviorism have been the three dominant approaches to the simulation of intelligence in history up to the present. All the approaches have made progresses so far whereas they are also, however, facing critical difficulties in their development. Further more, there have been no connections between the research in AI and that in A.E. An attempt was thus made in the paper to propose a new approach to the research in AI and AE. Different from the structuralism, functionalism and behaviorism, this approach is featured by the direct concern with the central mechanism of intelligence and emotion and is therefore termed mechanism approach. It has been discovered as consequence that the transformations from information to knowledge and further to intelligence are the nucleus of the mechanism both for AI and AE and that a by-product that seems of significance has also been achieved at the same time - the three named approaches to AI can well be unified within the framework of mechanism approach. These discoveries, both AI and AE can successfully be simulated by mechanism approach and the three approaches can harmoniously be unified into one unity, may open up a new stage for the research in AI and AE as well as the integration of these two.

关键词： Artificial intelligence

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Etching characteristics of a silicon surface induced by focused ion beam irradiation

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International Journal of Manufacturing Technology and Management 2006年第1-2期9卷 34-50页

作者： Kawasegi, Noritaka Morita, Noboru Yamada, Shigeru Takano, Noboru Oyama, Tatsuo Ashida, Kiwamu Taniguchi, Jun Miyamoto, Iwao Momota, Sadao Graduate School of Science and Engineering Toyama University 3190 Gofuku Toyama 930-8555 Japan Department of Mechanical and Intellectual Systems Engineering Toyama University 3190 Gofuku Toyama 930-8555 Japan Advanced Manufacturing Research Institute National Institute of Advanced Industrial Science and Technology 1-2-1 Namiki Tsukuba Ibaraki 305-8564 Japan Department of Applied Electronics Tokyo University of Science 2641 Yamazaki Noda Chiba 278-8510 Japan Department of Intelligent Mechanical Systems Engineering Kochi University of Technology 185 Tosayamada Kochi Japan Graduate School of Science and Engineering Toyama University Toyama Japan Faculty of Engineering Toyama University Toyama Japan Faculty of Engineering Toyama University Japan National Institute of Advanced Industrial Science and Technology Tsukuba Japan National Institute of Advanced Industrial Science and Technology Japan Department of Applied Electronics Tokyo University of Science Chiba Japan Department of Applied Electronics Tokyo University of Science Japan Faculty of Engineering Kochi University of Technology Japan

The etching resistance characteristics of a Focused Ion Beam (FIB) irradiated silicon surface against KOH are investigated in this study. An FIB irradiated silicon surface can withstand etching in KOH solution, whereas the non-irradiated area is etched and consequently, a protruding nanostructure can be fabricated on the irradiated area. Height dependence of the nanostructure on the FIB irradiating conditions is investigated in order to control the shape of the nanostructure for application to three-dimensional nanofabrication. As a consequence, it was found that the height of the nanostructure can be controlled by FIB irradiating conditions such as dose and acceleration voltage. The mechanism is investigated by a selective etching method using HF solution. The results of a simulation indicate that the amorphous layer induced by ion irradiation is strongly related to this phenomenon. In addition, surface roughness and line width dependence was investigated, and these results indicate the potential use of this method as a novel three-dimensional nanofabrication process. Copyright © 2006 Inderscience Enterprises Ltd.

关键词： Silicon

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