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IEEE International Symposium on Industrial Electronics (ISIE)

作者： Jong-Hae Kim S. Okuma Young-Woo Kim Don-Ha Hwang Min-Huei Kim Dong-Hee Kim Department of Electrical Engineering and Computer Science Graduate School of Engineering University of Nagoya Japan Space Robotics Research Center Toyota Technological Institute Nagoya Japan Industry Applications Research Laboratory Korea Electrotechnology Research Institute Changwon South Korea Department of Electrical & Automation Engineering Yeungnam College of Science and Technology Daegu South Korea Department of Electrical Engineering Yeungnam University Kyungbuk South Korea

This paper presents the development of the modeling strategy of the human driving behavior based on the expression as Piecewise Linear (PWL) model focusing on the driver’s stopping maneuver. The driving data are collected by using the three-dimensional driving simulator based on CAVE, which provides stereoscopic immersive vision. In our modeling, the relationship between the driver’s sensory information and the operation of the driver such as braking amount is expressed by PWL model, which is a class of Hybrid Dynamical System (HDS). The identification problem for the PWL model is formulated as the Mixed Integer Linear Programming (MILP) by transforming the switching conditions into binary variables. From the obtained results, it is found that the driver appropriately switches the ‘control low’ according to the sensory information. These results enable us to capture not only the physical meaning of the driving skill, but also the decision-making aspect (switching conditions) in the driver’s stopping maneuver.

关键词： Humans Piecewise linear techniques Hidden Markov models Decision making computer science Space technology Robotics and automation Switches Automatic control Service robots

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CONSERVATION OF FILTERING IN MANUFACTURING SYSTEMS

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IFAC Proceedings Volumes 2005年第1期38卷 165-170页

作者： Jingshan Li Emre Enginarlar Semyon M. Meerkov Manufacturing Systems Research Lab General Motors Research & Development Center Warren MI 48090-9055 Decision Applications Division Los Alamos National Laboratory Los Alamos NM 87545 Department of Electrical Engineering and Computer Science University of Michigan Ann Arbor MI 48109-2122

This paper addresses the issue of reliable satisfaction of customer demand by unreliable production systems. Using a simple Production-Storage-Customer model, we show that this can be accomplished by filtering out production randomness. The filtering of randomness is ensured by finished goods buffers (filtering in space) and shipping periods (filtering in time). The following question is considered: How are filtering in space and in time interrelated? As an answer, we show that there exists a conservation law: In lean manufacturing systems, the amount of filtering in space multiplied by the amount of filtering in time (both measured in appropriate dimensionless units) is practically constant.

关键词： Manufacturing systems Filtering Conservation law

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Mining top – k ranked webpages using simulated annealing and genetic algorithms

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2nd Asian Applied Computing Conference, AACC 2004

作者： Deepa Shenoy, P. Srinivasa, K.G. Thomas, A.O. Venugopal, K.R. Patnaik, L.M. Department of Computer Science and Engineering University Visvesvaraya College of Engineering Bangalore India Microprocessor Applications Laboratory Indian Institute of Science Bangalore India

ISBN: (纸本)9783540236597

Searching on the Internet has grown in importance over the last few years, as huge amount of information is invariably accumulated on the Web. The problem involves locating the desired information and corresponding URLs on the WWW. With billions of webpages in existence today, it is important to develop efficient means of locating the relevant webpages on a given topic. A single topic may have thousands of relevant pages of varying popularity. Top - k document retrieval systems identifies the top - k ranked webpages pertaining to a given topic. In this paper, we propose an efficient top-k document retrieval method (TkRSAGA), that works on the existing search engines using the combination of Simulated Annealing and Genetic Algorithms. The Simulated Annealing is used as an optimized search technique in locating the top-k relevant webpages, while Genetic Algorithms helps in faster convergence via parallelism. Simulations were conducted on real datasets and the results indicate that TkRSAGA outperforms the existing algorithms. © Springer-Verlag Berlin Heidelberg 2004.

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Harmonic control for maximum bus utilization

Harmonic control for maximum bus utilization

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Collection of Technical Papers - 2nd International Energy Conversion engineering Conference

作者： Brzezinski, Brent J. Haskew, Tim A. Dawson, Charlie Electrical and Computer Engineering University of Alabama Tuscaloosa AL 35487 Science Applications International Corporation Huntsville AL 35805 Department of Electrical and Computer Engineering Box 870286 Tuscaloosa AL 35487

ISBN: (纸本)1563477157

In typical electric vehicle applications, the user input is effectively a torque command. Ideally, a constant maximum steady-state speed is available through a constant maximum steady-state torque. A permanent magnet synchronous machine (PMSM) is used in many electric vehicles. For a given mechanical load level, in steady state, a PMSM appears as a purely resistive electrical load. Operation reduces to a linear relationship between maximum steady-state speed and required line-line terminal voltage. Pulse width modulated power semiconductors allow variable speed operation of a PMSM. Addition of the third harmonic to a sinusoidal modulating function increases the maximum line-line voltage by increasing the fundamental of the developed voltage. Additional harmonics can be added to the modulation function to produce a larger fundamental voltage. Additional non-triplen harmonics are not filtered by the three-phase system. An equation for third harmonic magnitude, subject to minimization of the magnitude of an added fifth harmonic, necessary to produce a required fundamental voltage is presented with experimental results. Copyright © 2004 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.

关键词： Electric vehicles

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Evolution: Dynamics of mammalian chromosome evolution inferred from multispecies comparative maps

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science 2005年第5734期309卷 613-617页

作者： Murphy, William J. Larkin, Denis M. Everts-Van Der Wind, Annelie Bourque, Guillaume Tesler, Glenn Auvil, Loretta Beever, Jonathan E. Chowdhary, Bhanu P. Galibert, Francis Gatzke, Lisa Hitte, Christophe Meyers, Stacey N. Milan, Denis Ostrander, Elaine A. Pape, Greg Parker, Heidi G. Raudsepp, Terje Rogatcheva, Margarita B. Schook, Lawrence B. Skow, Loren C. Welge, Michael Womack, James E. O'Brien, Stephen J. Pevzner, Pavel A. Lewin, Harris A. Department of Veterinary Integrative Biosciences Texas A and M University College Station TX 77843 United States Department of Veterinary Pathobiology Texas A and M University College Station TX 77843 United States SAIC-Frederick Inc. National Cancer Institute Frederick MD 21702 United States Laboratory of Genomic Diversity National Cancer Institute Frederick MD 21702 United States Department of Animal Sciences University of Illinois at Urbana-Champaign Urbana IL 61801 United States National Center for Supercomputing Applications University of Illinois at Urbana-Champaign Urbana IL 61801 United States Institute for Genomic Biology University of Illinois at Urbana-Champaign Urbana IL 61801 United States Genome Institute of Singapore 138672 Singapore Singapore Department of Mathematics University of California San Diego CA 92093 United States Department of Computer Science and Engineering University of California San Diego CA 92093 United States UMR6061-CNRS Genetique et Developpement Université de Rennes 1 35043 Rennes France Laboratoire de Génétique Cellulaire INRA 31326 Castanet-Tolosan France National Human Genome Research Institute Bethesda MD 20892 United States

The genome organizations of eight phylogenetically distinct species from five mammalian orders were compared in order to address fundamental questions relating to mammalian chromosomal evolution. Rates of chromosome evolution within mammalian orders were found to increase since the Cretaceous-Tertiary boundary. Nearly 20% of chromosome breakpoint regions were reused during mammalian evolution;these reuse sites are also enriched for centromeres. Analysis of gene content in and around evolutionary breakpoint regions revealed increased gene density relative to the genome-wide average. We found that segmental duplications populate the majority of primate-specific breakpoints and often flank inverted chromosome segments, implicating their role in chromosomal rearrangement.

关键词： Biodiversity

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Efficient encoding and decoding algorithms for distributed resampling

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Journal of the Indian Society of Remote Sensing 2004年第3期32卷 269-286页

作者： Vamsi Kiran, D. Srinivasa Rao, C. Ramakrishnan, R. Gupta, P. Department of Computer Science and Engineering Indian Institute of Technology Kanpur Kanpur - 208 016 India Space Applications Center Indian Space Research Organization Ahmedabad - 380 015 India

This paper discusses algorithms for compressing floating point data which is encountered while performing resampling algorithm for rectifying geometric distortions on the images transmitted by the remote sensing satellite on a distributed computing environment. Two efficient algorithms Ibr encoding and decoding floating point data compression, (i) 3-byte packing and (ii) 3-byte + 2-bit packing have been proposed. Both algorithms are tested to execute resampling algorithm on radiometrically corrected for IRS- LISS-III 4 bands data on a distributed system. First algorithm compresses 4-byte floating point data to 3-byte obtaining 25% compression while later one compresses 4-byte floating point data to 3-byte + 2-bit achieving about 18.75% compression. The computational time is reduced by 22% as compared to the distributed resampling algorithms without compression. Further it is found that in Iossy compression algorithm only 220 pixels out of 37.4 MB pixels have utmost one Gray count difference, which will not pose any issues for digital classification or any other methods that will be employed in the corrected image by Image Analysts.

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Classification of bio-medical images using neuro fuzzy approach

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9th International Conference on Database Systems for Advanced applications, DASFAA 2004

作者： Tapaswi, Shashikala Joshi, R.C. Department of Computer Applications Madhav Institute of Technology and Science GwaliorM. P474005 India Electronics and Computer Engineering Department Indian Institute of Technology Roorkee RoorkeeUttaranchal247667 India

ISBN: (纸本)3540210474

The prime requirement for medical imaging systems is to be able to display images relating to a particular disease, there is increasing interest in the use of Image Retrieval techniques to aid diagnosis by identifying similar past cases. One area where computers have scored great success in biomedicine has been medical imaging. In biomedicine, searching digital bio-medical images is a challenging problem. Bio-medical images, such as pathology slides, usually have higher resolution than general-purpose pictures. Retrieval of biomedical images will find wide usage in the next decade. In this paper a neuro fuzzy technique for classification of biomedical images on the basis of combined feature vector, which combines color and texture feature into a single feature vector, is presented. The system uses concept based on pixel descriptors, which combines the human perception of color and texture into a single vector, for region extraction. The region extracted using the feature vectors represented in the form of pixel descriptor are fed as input to a neural network, which is trained for classification of images The method takes care of "imprecision". The user always provides partial information while posing queries. In the proposed method efforts have been made to model the imprecision using fuzzy interpretation. The technique has been implemented on the database of biomedical images. Some of the experimental results are reported in the paper. Tested on a database of more than 100 pathological/biomedical images the technique is found to be quite satisfactory. Some of the results have been reported in the paper. This technique can assist the medical community in diagnosing the disease. © Springer-Verlag Berlin Heidelberg 2004.

关键词： Pixels

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Cluster-based multiple task allocation in distributed computing system

Cluster-based multiple task allocation in distributed comput...

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Proceedings - 18th International Parallel and Distributed Processing Symposium, IPDPS 2004 (Abstracts and CD-ROM)

作者： Vidyarthi, Deo Prakash Tripathi, Anil Kumar Sarker, Biplab Kumer Dhawan, Abhishek Yang, Laurence Tianruo Department of Computer Science Faculty of Science Banaras Hindu University India Department of Computer Engineering I.T. Banaras Hindu University Varanasi-221005 India Department of Computer Engineering Kobe University Kobe 657-8501 Japan Department of Computer Applications Cochin University Cochin India St. Francise Xavier University Antigonish NS B2G 2W5 Canada

ISBN: (纸本)0769521320

Most of the task allocation models & algorithms in Distributed Computing System (DCS) require a priori knowledge of its execution time on the processing nodes. Since the task assignment is not known in advance, this time is quite difficult to estimate. We propose a cluster-based dynamic allocation scheme, in a distributed computing system, which eliminate this time requirement. Further, as opposed to a single task allocation, generally proposed in most of the models, we consider multiple tasks. A fuzzy function is used for both the module clustering and processor clustering. Dynamic invocation of clustering and assignment is considered. Experimental results show the efficacy of the proposed model.

关键词： Distributed computer systems

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An automated seamless mosaicing system of multi-charge coupled devices of panchromatic data

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Journal of the Indian Society of Remote Sensing 2004年第1期32卷 103-111页

作者： Ramakrishnan, R. Manthira Moorthi, S. Padmanabhan, N. Gupta, P. Data Products Software Division Signal and Image Processing Group Space Applications Centre (ISRO) Ahmedabad-380 015 India Department of Computer Science and Engineering Indian Institute of Technology Kanpur Kanpur 208 016 India

Panchromatic data of pixel resolution 5.8 m obtained from IRS-IC and IRS-ID satellites proved to be very useful for mapping purposes. One of the popular data product is the 70 km swath mosaic which is covered by a combination of 3 CCD line sensors, each with 4096 pixels. Each CCD-line sensor with different imaging times causes geometric problems of mosaicing three strips data together. In this paper, we propose the details of the design elements of system that caters to the need for accurate and automatic multi strip image registration without any second resampling of the data. The systematic geometric correction grid mapping is improved to facilitate accurate mosaicing by automatic image registration task that makes use of the overlap data within image strips and image registration is achieved up to sub-pixel level.

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An approach for conceptual modeling and extracting expressive semantics from dance videos

Lecture Notes in Computer Science (including subseries Lectu...

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Lecture Notes in computer science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 2004年 3356卷 1-10页

作者： Rajkumar, K. Ramadoss, B. Ilango, Krishnamurthi Department of Computer Applications National Institute of Technology Tiruchirappalli 620015 India Department of Computer Science and Engineering National Institute of Technology Tiruchirappalli 620015 India

Due to the high complexity and exponential growth of videos, video data management tasks, such as understanding and annotating semantic content, are very difficult to be accomplished. Dance videos are one such critical domain. Considering the various dance components, understanding their semantic content conceptually, extracting the expressive semantics, annotating them properly and storing the annotations in a suitable medium for future reuse and analysis, are the essential tasks for the next generation dance systems. This paper presents a conceptual multimedia data model based on Protocol Analysis, called Video Semantics Directed Acyclic Graph (VSDAG) model. The expressive semantic content, represented by VSDAG model, is extracted from the video by a unique video annotation system. The generated annotations are stored in a XML compliant structure. © Springer-Verlag 2004.

关键词： Information management

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