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IEEE International Conference on Fuzzy Systems (FUZZ-IEEE)

作者： H. Ushida T. Takagi T. Yamaguchi Laboratory for International Fuzzy Engineering Research Yokohama Japan Systems & Software Engineering Laboratory Research & Development Center Toshiba Corporation Yokohama Japan

A facial expression is a vague concept that is difficult to describe explicitly. Conceptual fuzzy sets (CFSs), which have the ability to explicitly represent vague concepts, are realized using bidirectional associative memories, and a multilayer structured CFS represents the meaning of a concept by various expressions in each layer. Multilayered reasoning in CFS has the capability of simultaneous abstract and concrete representation and of simultaneous top-down and bottom-up processing. CFS has been applied to the recognition of facial expressions and shown to achieve context-sensitive recognition.< >

关键词： Face recognition Fuzzy sets Humans Laboratories Associative memory Fuzzy set theory Fuzzy systems software engineering Bidirectional control Concrete

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Intention recognition using conceptual fuzzy sets

Intention recognition using conceptual fuzzy sets

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IEEE International Conference on Fuzzy Systems (FUZZ-IEEE)

作者： A. Imura T. Takagi T. Yamaguchi Laboratory for lnternational Fuzzy Engineering Research Yokohama Japan System & Software Engineering Laboratory Research & Development Center Toshiba Corporation Kawasaki Japan

In the man-machine interface, the user's goal is transmitted to the system, the system understands the goal, and the processing is carried out. The status of the system and the processing result are transmitted to the user. Therefore, to realize this communication, it is necessary to recognize a user's intention from his or her words. This intention recognition raises the computer system to the information processing level of a human. A conceptual fuzzy set (CFS) represents the context-dependent meaning of a vague concept. Multilayered reasoning (MLR) based on CFS can provide abstract and concrete representation simultaneously, and can handle top-down and bottom-up processing simultaneously. The authors apply MLR based on CFS to intention recognition. Goal recognition for a drawing tool is used as a concrete example. The multistructured knowledge for goal recognition is represented using CFS, and is inductively constructed using the Hebbian learning law.< >

关键词： Fuzzy sets Concrete Laboratories User interfaces Information processing Neural networks Fuzzy reasoning Fuzzy systems Iron software engineering

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application of neural network to operation of power generating units

application of neural network to operation of power generati...

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International Forum on Applications of Neural Networks to Power Systems

作者： K. Nishimura H. Iida H. Hayashi T. Asano Research and Development Center Systems & Software Engineering Laboratory Kawasaki Kanagawa Japan Fuchu Tokyo Japan

The authors propose a new method based on neural network technology to optimize the operation of generating units. The iterative use of a neural network permits less accuracy of learning and makes the method applicable to larger power systems. Simulations of transmission loss reduction and steady-state stability improvement have demonstrated the effectiveness of the proposed method.< >

关键词： Neural networks Power generation Power system modeling Power system simulation Power system stability Computer networks Optimization methods Iterative methods Propagation losses Steady-state

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Fuzzy artificial network and its application to a command spelling corrector

Fuzzy artificial network and its application to a command sp...

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IEEE International Conference on Fuzzy Systems (FUZZ-IEEE)

作者： N. Imasaki T. Yamaguchi D. Montgomery T. Endo University of California Berkeley USA Systems & Software Engineering Laboratory Research & Development Center TOSHIBA Corporation Kawasaki Japan Faculty of Engineering University of Victoria Canada

The authors propose a fuzzy artificial network (FAN) which utilizes associative memories and is constructed by a method which makes it easy to represent and to modify fuzzy rule sets. Whereas conventional fuzzy inference methods induce much fuzziness on multilayered fuzzy rule sets, the associative-memory-based FAN results in inferences which fit human senses better. This type of fuzzy inference is called associative inference. For memorizing fuzzy rule sets, the FAN system employs a correlation matrix which is constructed from a nominal correlation matrix, a bias matrix, and a scale parameter, so that it is easy to carry out refinement and cut-and-paste operations for rule sets. Using a FAN development system, a command spelling corrector is proposed which uses a multilayered fuzzy rule set. The spelling corrector application shows the eligibility of associative inference for multilayered fuzzy rule sets.< >

关键词： Fuzzy sets Fuzzy systems Matrix converters Associative memory Humans Fuzzy set theory Artificial neural networks Magnesium compounds Intelligent systems Competitive intelligence

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3-DIMENSIONAL ELECTROMAGNETIC ANALYSIS OF SHIELDED MICROSTRIP CIRCUITS

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INTERNATIONAL JOURNAL OF MICROWAVE AND MILLIMETER-WAVE COMPUTER-AIDED engineering 1992年第4期2卷 286-296页

作者： HILL, A BURKE, J KOTTAPALLI, K Compact Software Inc. 483 McLean Boulevard Paterson New Jersey 07504 Achim Hill was born in Friedrichshafen Germany on October 28 1960. He received an MS (Dipl-lng) degree in Electrophysics from the University of Stuttgart. An MS and PhD degree in Microwave Engineering from Oregon State University and an MBA degree from Columbia University. Since November 1989 he has been with Compact Software Inc. where he started the development of the electromapetic simulator Microwave Explorer. At Compact he is product manager for two software products and the Microwave Laboratory. Dr. Hill was B Fulbright Scholar Friedrich-Ehert Scholar and he is a member of Beta Gamma Sigma and the IEEE. John J. Burke was born in Elizabeth NJ on June 9 1962 He received the BSEE degree from Northeastern University Boston MAm in 1984 and the MSEE degree from the University of California at Los Angele in I986. He is expecting to receive the PhD degree from the University of Maswchusetts in the summer of 1992. From 1984–1986 he was employed with the Space and Conimunicationr Group Hughes Aircraft. El Segundo CA. In 1987 he joined the Microwave Electronics Laboratories at the University of Massachusetts. Since 1990 he has been with Compact Software Paterson NJ. His research interests include the computer-aided analysis and design of microwave circuitry. Krishnamoorthy Kottapalli was born in Bombay India in 1966. He received the BTech degree in Electronics and Communication from V. R. Siddhartha Engineering College Vijayawada India in 1987. He received the MS degree in Electrical Engineering from Syracuse University Syracuse NY in August 1990. Since August 1990 he has been working with Compact Software Inc. Paterson NJ involved in developing the 3D electromagnetic simulator Microwave Explorer.

The spectral domain integral equation approach is employed for the characterization of passive microstrip circuits that cannot be analyzed using the traditional lumped-circuit-based approach. General planar and certain three-dimensional structures such as vias and air bridges are analyzed using the presented technique. Spurious mode coupling and the effect of the microwave housing on circuit performance are also investigated.

关键词： Microstrip Devices

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ROLE OF SIMULATION IN RAPID PROTOTYPING FOR CONCEPT development

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NAVAL ENGINEERS JOURNAL 1991年第3期103卷 204-211页

作者： KING, JF BARTON, DE J. Fred King:is the manager of the Advanced Technology Department for Unisys in Reston Virginia. He earned his Ph.D. in mathematics from the University of Houston in 1977. He has been principal investigator of research projects in knowledge engineering pattern recognition and heuristic problem-solving. Efforts include the development of a multi-temporal multispectral classifier for identifying graincrops using LANDSAT satellite imagery data for NASA. Also as a member of the research team for a NCI study with Baylor College of Medicine and NASA he helped develop techniques for detection of carcinoma using multispectral microphotometer scans of lung tissue. He established and became technical director of the AI Laboratory for Ford Aerospace where he developed expert scheduling modeling and knowledge acquisition systems for NASA. Since joining Unisys in 1985 he has led the development of object-oriented programming environments blackboard architectures data fusion techniques using neural networks and intelligent data base systems. Douglas E. Barton:is manager of Logistics Information Systems for Unisys in Reston Virginia. He earned his B.A. degree in computer science from the College of William and Mary in 1978 and did postgraduate work in London as a Drapers Company scholar. Since joining Unisys in 1981 his work has concentrated on program management and software engineering of large scale data base management systems and design and implementation of knowledge-based systems in planning and logistics. As chairman of the Logistics Data Subcommittee of the National Security Industrial Association (NSIA) he led an industry initiative which examined concepts in knowledge-based systems in military logistics. His responsibilities also include evaluation development and tailoring of software engineering standards and procedures for data base and knowledge-based systems. He is currently program manager of the Navigation Information Management System which provides support to the Fleet Ballistic Missile Progr

A valuable technique during concept development is rapid prototyping of software for key design components. This approach is particularly useful when the optimum design approach is not readily apparent or several known alternatives need to be rapidly evaluated. A problem inherent in rapid prototyping is the lack of a "target system" with which to interface. Some alternatives are to develop test driver libraries, integrate the prototype with an existing working simulator, or build one for the specific problem. This paper presents a unique approach to concept development using rapid prototyping for concept development and scenario-based simulation for concept verification. The rapid prototyping environment, derived from artificial intelligence technology, is based on a blackboard architecture. The rapid prototype simulation capability is provided through an object-oriented modeling environment. It is shown how both simulation and blackboard technologies are used collectively to rapidly gain insight into a tenacious problem. A specific example will be discussed where this approach was used to evolve the logic of a mission controller for an autonomous underwater vehicle.

关键词： Military engineering

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A SPEECH RECOGNITION research ENVIRONMENT BASED ON LARGE-SCALE WORD AND CONCEPT DICTIONARIES 1

A SPEECH RECOGNITION RESEARCH ENVIRONMENT BASED ON LARGE-SCA...

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1st International Conference on Spoken Language Processing, ICSLP 1990

作者： Chimoto, Hiroyuki Shinchi, Hideaki Hashimoto, Hideki Amano, Shinya Japan Electronic Dictionary Research Institute Ltd. Fifth Research Laboratory Research Center Japan Toshiba Software Engineering Corporation c/o Toshiba Corporation Research and Development Center 1 Komukai Toshiba-cho Saiwai-ku Kawasaki210 Japan

This paper describes a speech recognition research environment based on large-scale Japanese word and concept dictionaries. The dictionaries are currently under development at Japan Electronic Dictionary research Institute (EDR). The research environment includes userinteractive capabilities, which enable efficient upgrade and revision of the dictionaries;and it has high-speed hardware, which supports real-time processing of speech input data. Within this environment, a combination of the two dictionaries will be applied to deal with the inherent ambiguities of speech recognition. © 1990 1st International Conference on Spoken Language Processing, ICSLP 1990. All rights reserved.

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CAD CAM MANUFACTURING OF PROTOTYPE SHIPBOARD COMPONENTS

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NAVAL ENGINEERS JOURNAL 1990年第3期102卷 93-99页

作者： CALVERT, TE RODRIGUEZ, FA SLEBZAK, JS Thomas E. Calvert P.E.: is a senior project engineer with the Propulsion and Auxiliary Systems Department David Taylor Research Center Annapolis Md. His interests include application of computers to all aspects of engineering with particular emphasis on utilization of small computers. Mr. Calvert is a licensed professional engineer in Maryland. He received a BSEE from Drexel University in 1969 and since that time has completed a number of graduate courses related to machinery acoustics. Francisco A. Rodriguez:is an engineer with the Propulsion and Auxiliary Systems Department David Taylor Research Center. He was formerly with the Computer-Aided Design/Interactive Graphics Group of the Division of Engineering and Weapons U.S. Naval Academy. His interests include interfacing the computer aided design to the computer aided manufacturing along with related software and hardware development. Mr. Rodriguez received a BSEEfrom the University of Virginia in 1968. James S. Slebzak:is a mechanical engineering technician with the Propulsion and Auxiliary Systems Department David Taylor Research Center. He received his machinists papers in 1971 after serving his apprenticeship at David Taylor Research Center. He continued his education and became the senior numerical control programmer at the Annapolis Laboratory. He completed his mechanical technology degree from Anne Arundel Community College in 1986. His interests are in the application of numerically controlled manufacturing techniques to prototype machinery components.

The machine shop at the Annapolis laboratory of the David Taylor research Center (DTRC) provides model making and prototype support to a large variety of naval ship related engineering projects. In order to meet these challenging requirements, computer aided design/computer aided manufacturing (CAD/CAM) techniques are being used to produce “one of a kind” prototypes or very low volume production parts. The use of computer aides in these cases is to facilitate the accurate manufacture of a difficult part, rather than to improve manufacturing efficiencies. In addition, the approach provides the flexibility required to support research and development projects. Several examples of prototype shipboard components manufactured using CAD/CAM techniques are presented in this paper. The hardware and software that facilitated these projects are discussed. The examples described have met the requirements to produce a wide variety of prototype shipboard machinery components quickly and accurately.

关键词： Ship Equipment

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Static hazards of drum filling. II. Electrostatic models: Theory and experiment

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Process Safety Progress 1988年第1期7卷 63-78页

作者： Laurence G. Britton Jack A. Smith Larry Britton earned BS and PhD degrees in Fuel and Combustion Science at Leeds University England. After four years as Research Fellow in Applied Electrostatics at Southampton University he joined Union Carbide's Safety Research Laboratory in 1981 and is currently a Project Scientist. He is a Fellow of the Institute of Energy a Member of AIChE and the Combustion Institute and is a Chartered Engineer in the UK. He was cowinner of the AIChE “Bill Doyle” Award in 1987. Larry serves on the “Classification and Properties of Flammable Liquids” and “Properties of Hazardous Chemicals” committees of the NFPA. Jack Smith is a staff engineer for the Applied Mathematics and Process Simulation group of Central Research and Engineering at Union Carbide specializing in software development for engineering workstations and computational chemistry. He holds M.S. and Ph.D. degrees from the University of Florida in chemical physics and a B.S. from Purdue University in chemistry and mathematics.

For drum filling, a demarcation of 50 pS/m (below which a liquid may accumulate hazardous static in a grounded drum) is conservative and takes account of the effects of temperature and/or charge density on relaxation rate. The worst-case conductivity as regards static accumulation rate is about 0.5 pS/m, but in practice this should not correspond to the worst-case charge generation rate. Published forms of the Schon equation are not conservative for smooth-bore pipes and hoses; a new equation is proposed. Certain rough-bore hoses containing an inner grounding spiral can generate almost as much charge as a microfilter. Theory and experiment are discussed with reference to published Codes and Guidelines; attention is given to filter placement and drum linings.

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OPTIMUM DESIGN OF VERTICAL POWER MOSFET WITH THICK DRAIN OXIDE.

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Electronics and Communications in Japan, Part II: Electronics (English translation of Denshi Tsushin Gakkai Ronbunshi) 1987年第8期70卷 68-79页

作者： Ueda, Daisuke Takagi, Hiromitsu Kano, Gota Kuroda, Keiji Member Semiconductor Research Laboratory Matsushita Electronics Corporation Takatsuki Japan 569 Diasuke Ueda received B.S. and M.S. in Electronics Engineering from Kyushu Institute of Technology in 1977 and 1979 respectively. He joined Matsushita Electric in 1979. He has been engaged in the development of power FET's. Nonmember Keiji Kuroda received B.S. in Physics and M.S. in Nuclear Engineering from Kyoto University in 1978 and 1980 respectively. Joined Matsushita Electric in 1980. Engaged in developments of semiconductor CAD software and device simulation. Hiromitsu Takagi received B.S. and M.S. in Electronics Engineering from Osaka-Furitsu university in 1971 and 1973 respectively. Joined Matsushita Electric in 1973. Engaged in research of functional IC devices compound IC devices and ultra-high density IC devices. Ph.D. Kyoto Research Laboratory Matsushita Electronics Corporation Kyoto Japan 601 Gota Kano received B.S. in Electrical Engineering from Osaka University in 1961 and joined Matsushita Electric. Engaged in R&D of high-speed bipolar discrete devices high-speed bipolar ICs GaAs FET/ICs and semiconductor lasers. Ph.D. and author of Semiconductor Devices and Applications and Recent Compound Semiconductor Handbook.

The optimum design of a vertical power MOSFET with thick drain oxide is described, taking into account such dc characteristics as the on-resistance and breakdown voltage. Introducing the empirical ideality of the edge-termination which determines the breakdown voltage of the device, the optimum doping density and thickness of the epitaxial layer have been determined to minimize the on-resistance. Using two-dimensional simulation to evaluate the optimum design of the device, the thickness of the drain oxide and the relationship between the layout pitch and the product of on-resistance and active area have been determined.

关键词： SEMICONDUCTOR DEVICES, MOSFET

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