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2005 International Conference on Embedded systems and Applications, ESA'05

作者： Thapliyal, Himanshu Srinivas, M.B. Arabnia, Hamid R. Center for VLSI and Embedded System Technologies International Institute of Information Technology Hyderabad-500019 India University of Georgia Department of Computer Science 415 Graduate Studies Research Center Athens GA 30602-7404 United States

ISBN: (纸本)9781932415537

This paper presents the novel design and synthesis of 44 bit reversible logic based array multiplier. The proposed reversible circuit has the ability to multiply two 4-bits binary numbers which can be generalized for NXN bit. It is also shown that the proposed design technique generates the reversible binary array multiplier with minimum number of gates as well as the minimum number of garbage outputs.

关键词： computer circuits

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Filtering transformation in Generalized Quadrature Bandpass Sampling

Filtering transformation in Generalized Quadrature Bandpass ...

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IEEE International Conference on Electronics, Circuits and systems (ICECS)

作者： Yi-Ran Sun Svante Signell School of Information and Communication Technology (ICT) Royal Institute of Technology (KTH) Laboratory of Electronics and Computer System Stockholm Sweden

According to recent research, Generalized Quadrature BandPass Sampling (GQBPS) with FIR filtering is promising to deal with the noise aliasing problem in subsampling systems. However, the interesting band of folded spectra by GQBPS with real FIR filtering is still located at the input carrier frequency. In this paper, inherent FIR filtering in GQBPS with real coefficients is transformed such that the interesting band is shifted to a lower frequency. The main advantage of such transformation is to achieve a frequency downconversion besides sampling and dealing with noise aliasing in GQBPS. As a special case of GQBPS, Uniform Quadrature BandPass Sampling (UQBPS) is also discussed including the filter transformation. Both theoretical analyses and simulations are included. It is verified that the expected noise aliasing improvement of GQBPS or UQBPS does not change with the filter transformation. The whole subsampling system with GQBPS or UQBPS might be simplified by using complex filtering.

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Improved vicinal SV algorithm

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Beijing Ligong Daxue Xuebao/Transaction of Beijing institute of technology 2005年第11期25卷 967-970页

作者： Bi, Le-Peng Zheng, Zhi-Yun Song, Han-Tao Lu, Yu-Chang Department of Computer Science and Engineering School of Information Science and Technology Beijing Institute of Technology Beijing 100081 China State Key Laboratory of Intelligent Technology and System Tsinghua University Beijing 100084 China

Two improvements are introduced into vicinal-risk-minimization based support vector (SV) algorithm. Since the misclassified samples must be support vectors, a scheme for pruning hard-to-learn samples from the training set based on support vectors is presented. The parameter's determination of Gaussian vicinal function is proposed to be modified, based on the maximum likelihood criterion. Preliminary experimental results show that the pruning scheme and improvement of the parameter's determination of vicinal function much improved vicinal SV algorithm's generality, and can outperform support vector machine (SVM) by about 0.5% in test accuracy.

关键词： Learning algorithms

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Study of classification rules on weighted coronary heart disease data

Study of classification rules on weighted coronary heart dis...

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International Conference on Machine Learning and Cybernetics, ICMLC 2005

作者： Zheng, Gang Huang, Ya-Lou Wang, Peng-Tao Shu, Guang-Fu NanKai University College of Information Technical Science 300070 TianJin China TianJin University of Technology Dept. of Computer Science 300191 TianJin China NanKai University College of Computer Software 300070 TianJin China Chinese Academy Sciences System Institute 100864 Beijing China

ISBN: (纸本)078039092X

This paper studies the data weighting affection of rules that derived from different decision tree algorithms. The data that we study is collected from patients with coronary heart disease;it has 1723 records and 71 attributes in each record. The weighting methods we used are system reconstruction method and principle component analysis, from which we get two weighted data sets. The analysis will base on the weighted data sets and the original not weighted data set. The analysis methods we adapted are some decision tree algorithms;they are C4.5, CART, CHAID and Exhausted CHAID. In the analysis, we compare the quantity and quality of rules which are proved correct by medical specialists and clinical doctors. According to the result from experiments, we know that weighted data sets can improve rule quality, which is better than the result from not weighted data set. © 2005 IEEE.

关键词： Classification (of information)

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Combining multiple forms of evidence while filtering 05

Combining multiple forms of evidence while filtering

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Human Language technology Conference and Conference on Empirical Methods in Natural Language Processing, HLT/EMNLP 2005, Co-located with the 2005 Document Understanding Conference, DUC and the 9th International Workshop on Parsing Technologies, IWPT

作者： Zhang, Yi Callan, Jamie Information System and Technology Management School of Engineering University of California Santa Cruz Santa Cruz CA 95064 United States Language Technologies Institute School of Computer Science Carnegie Mellon University Pittsburgh PA 15213 United States

This paper studies how to go beyond relevance and enable a filtering system to learn more interesting and detailed data driven user models from multiple forms of evidence. We carry out a user study using a real time web based personal news filtering system, and collect extensive multiple forms of evidence, including explicit and implicit user feedback. We explore the graphical modeling approach to combine these forms of evidence. To test whether the approach can help us understand the domain better, we use graph structure learning algorithm to derive the causal relationships between different forms of evidence. To test whether the approach can help the system improve the performance, we use the graphical inference algorithms to predict whether a user likes a document based on multiple forms of evidence. The results show that combining multiple forms of evidence using graphical models can help us better understand the filtering problem, improve filtering system performance, and handle various data missing situations naturally. © 2005 Association for Computational Linguistics.

关键词： Graphic methods

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A rotationally symmetric triangulation sensor with low cost reflective optic

A rotationally symmetric triangulation sensor with low cost ...

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ICIA 2005: 2005 International Conference on information Acquisition

作者： Ott, Peter Gao, Jun Eckstein, Johannes Wang, Xiaojia Department of Mechatronics and Micro System Engineering University of Applied Sciences D-74081 Heilbronn Germany Institute of Intelligent Machines Chinese Academy of Sciences Hefei Anhui 230031 China Department of Computer and Information University of Technology Heifei Anhui 230009 China

ISBN: (纸本)0780393031

For a growing range of optical measurement task, like gap measurement in automotive industry, traditional triangulation sensors have several disadvantages due to the fact that the measurement result is dependent on the orientation of the sensor because of the non rotational symmetry of the optics. Consequently a design method was proposed in [1] for a new class of rotationally symmetric triangulation sensors. Such designs can be realized with aspheric reflection optics and area detectors, such as CCD or CMOS. The optics of the sensor can be extended by an imaging optics which allows at the same time image capturing and distance measurement. In this paper we show measurement results of the first mockup. This system is based on an optical system of one part manufactured by commercially available diamond turning. The layout of the optical system for distance measurement consists of two reflecting aspheric surfaces. We also present approaches and first results on the algorithm for highly accurate evaluation of the captured data. © 2005 IEEE.

关键词： Sensors

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A new approach for early detection of Internet worms based on connection degree

A new approach for early detection of Internet worms based o...

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International Conference on Machine Learning and Cybernetics (ICMLC)

作者： Chen Bo Bin-Xing Fang Xiao-Chun Yun National Computer Information Content Security Key Laboratory Harbin Institute of Technology Harbin China National Computer Network and Information System Security Administration Center Beijing China

In recent years, Internet-scale worm incidents occurred many times. People wonder at the speediness of the worm spread and the severe damage to the Internet. So people began to find methods to detect worms as quickly as possible. The paper first describes a worm behavior and propagation model. And then based on it, a new approach for early detection of Internet worms is proposed. This approach determines whether a worm incident has occurred by the change of the computers' connection degree. The approach is proved to be effective on early detection of unknown worms by experiments.

关键词： Internet computer worms computer networks computer security information security National security Economics Web server Intrusion detection computer hacking

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Performance analysis on the controllable Slotted DS-CDMA with an allocating buffer for collided traffic

Performance analysis on the controllable Slotted DS-CDMA wit...

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作者： Asavaruk, Seri Sittichivapak, Suvepon Varakulsiripunth, Ruttikorn Kato, Yasushi Shiratori, Norio Faculty of Engineering Research Center for Communications and Information Technology King Mongkut's Institute of Technology Ladkrabang Bangkok 10520 Thailand Faculty of Engineering King Mongkut's Institute of Technology Ladkrabang Bangkok 10520 Thailand Sendai National College of Technology Sendai-shi 989-3128 Japan Research Institute of Electrical Communication Tohoku University Sendai-shi 980-8577 Japan Information System and Quality Assurance Division Computer Research and Service Center KMITI Thailand Department of Electronics Faculty of Engineering King Mongkut's Institute of Technology Ladkrabang Bangkok Thailand Department of Information Engineering Sendai National College of Technology Japan Miyagi Fukushima and Iwate Prefectural Institute of Technologies Japan

This paper presents an analysis of the Slotted DS-CDMA system with modified node components in order to construct a load control structure in which the service rates of each node can be dynamically adapted without using feedback information. In contrast to the traditional Slotted DS-CDMA which is widely represented with single queue, prior emphasis of the approach is laid on the usage of an additional queue which is applied to manage the collided packet traffic while its queue size is also used as a load control parameter. Semi-Markov process is applied to describe the statistic behavior of the system in steady state. Trade-offs between two major performance parameters, i.e., delay and throughput, are presented and compared with those of the traditional system. Results obtained from the simulation and numerical analysis using queuing concept are compared. With these results, an advantage performance for group packets is shown, and we finally extend the concept based on the obtained results to describe a simple algorithm using one way control message as the tool to alleviate the stability problem. Copyright © 2005 The institute of Electronics, information and Communication engineers.

关键词： Code division multiple access

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Optimal sampling operator for signal restoration in the presence of signal space and observation space noises

Optimal sampling operator for signal restoration in the pres...

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作者： Syed, Aqeel Ogawa, Hidemitsu Department of Electronics Quaid-i-Azam University Islamabad Pakistan Department of Computer Science Tokyo Institute of Technology Japan Department of Electronics Quaid-i-Azam University Islamabad Pakistan Department of Computer Science Tokyo Institute of Technology Japan Toray Engineering Co. Ltd. Japan Information Procesing Society of Japan Japan Society of Instrument and Control Engineer Japan International Neural Network Society United States IEEE Japan

The partial projection filter (PTPF) for a given observation operator provides an optimal signal restoration in the presence of both the signal space and observation space noises. However, restoration error by the filter still depends on the observation operator which consists of measurement and sampling processes. In this paper, we determine a sampling operator which minimizes the restoration error by the PTPF. We see that under some assumptions about noise statistics, the restoration error by the PTPF is divided into two terms corresponding to the error arising from the signal space noise and that from the observation space noise. It has been found that although the restoration error due to the signal space noise is independent of the sampling operator, the restoration error arising from the observation space noise can arbitrarily be decreased by increasing the number of sample points in the proposed sampling operator. An illustrative example of optimal sampling in the trigonometric polynomial space is also given. Copyright © 2005 The institute of Electronics, information and Communication engineers.

关键词： Electric filters

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Abstracts from the 6th International Conference on the engineering of Sport, 10-14 July 2006, Olympic Hall, Munich, Germany Abstracts

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SPORTS engineerING 2006年第2期9卷 107-127页

作者： [Anonymous] University of Massachusetts Lowell USA Science & Mathematics Department Kettering University Flint USA University of Illinois USA Western Michigan University USA Washington State University USA Casecade Engine USA Kanazawa University Japan Sumitomo Light Metal Japan Massachusetts Institute of Technology USA Nanyang Technological University Bioengineering Singapore University of Vienna Anthropology Austria Department of Mechanical Engineering University of Bath UK INSA Lyon France PETZL France Sports Materials Research Group University of Birmingham UK Laboratoire de Modélisation des Activités Sportives Bourget du Lac France Technical University Kaiserslautern Germany Department of Engineering Mechanics United States Air Force Academy Colorado Springs USA SRAM Corporation Colorado Springs USA Sports Engineering Research Group University of Sheffield UK Sports Engineering CSES Sheffield Hallam University USA Sports Engineering CSES Sheffield Hallam University UK Technische Universität München Germany Rush University Medical Center Chicago USA Faculty of Sports Science Department of Sport Equipment & Materials TU München Germany RMIT University Australia Institute of Health and Sports Sciences University of Tsukuba Ibaraki Japan Machine and Control Department Polytechnic University Kanagawa Japan SRI Sports Ltd. Hyogo Japan SRI Research and Development Ltd. Hyogo Japan Mizuno Corporation Osaka Japan Fukuoka Institute of Technology Fukuoka Japan University of Limerick Éire Graduate School of Engineering Hokkaido University Japan Faculty of Engineering Kitami Institute of Technology Japan University of Calgary Canada TaylorMade-adidas Golf Company USA Davis Mechanical Engineering University of California USA Davis Mechanical & Aeronautical Engineering University of California USA University of Wales Institute Cardiff Cardiff School of Sport UWIC Cardiff Cardiff School of Sport UWIC Wales Loughborough University UK Cranfield University UK Cr

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