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International Conference on Fuzzy systems and Knowledge Discovery (FSKD)

作者： Hongke Xia Xuefeng Zheng Xiang Hu Ying'ai Tian Computer School Beijing Information Science and Technology University China Information Engineer Institute University of Science and Technology Beijing China Computer Science & Tech Dept North China Electric Power University China

As a crucial point of semantic integration, ontology mapping has been researched in-depth in recent years. In this paper, the problem of concept similarity computing is regarded as the problem of classifying, and a multi-strategy ontology mapping framework based on stacking method is proposed with the multi concept similarity computing strategies being combined with Stacking method; also, a novel metadata classifying algorithm LMSMC based on Widrow-Hoff theory is presented. In this framework, the target ontology is classified with various current concept similarity computing methods in layer 0, and the metadata is classified with LMSMC algorithm in layer 1, and then the ontology mapping which combines several algorithms is made. Experiments indicate that the method performs better in improving precision and recall compared to individually using those algorithms.

关键词： Ontologies Stacking Fuzzy systems Knowledge engineering Power engineering and energy Power engineering computing computer science Semantic Web Knowledge management Terminology

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Matrix-pattern-oriented Ho-Kashyap classifier with early stopping

Matrix-pattern-oriented Ho-Kashyap classifier with early sto...

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2009 WRI World Congress on computer Science and information engineering, CSIE 2009

作者： Wang, Zhe Chen, Songcan Pan, Zhisong Ni, Xuelei Department of Computer Science and Engineering East China University of Science and Technology Shanghai 200237 China Department of Computer Science and Engineering Nanjing University of Aeronautics and Astronautics Nanjing 210016 China Institute of Command Automation PLA University of Science and Technology Nanjing 210007 China Department of Information System Shanghai Automotive Industry Corporation Shanghai 200041 China

ISBN: (纸本)9780769535074

Matrix-pattern-oriented Ho-Kashyap classifier has been demonstrated to have a superior classification performance to its vector classifier. However, it is found that the matrixized classifier takes a large computational complexity for convergence in some cases. To overcome the disadvantage, this paper introduces the early stopping technique into the matrixized Ho-Kashyap classifier and presents a Matrix-pattern-oriented Ho-Kashyap classifier with Early Stopping named MatHKES. The presented MatHKES adopts early stopping as a new regularization technique instead of adding a regularization parameter in the criterion. The proposed algorithm achieves: 1) a less running time;2) a competitive or better classification performance;3) an avoidance of overfitting in training. © 2008 IEEE.

关键词： Pattern recognition

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ARRAY: A non-application-related, secure,wide-area disaster recovery storage system

ARRAY: A non-application-related, secure,wide-area disaster ...

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2009 IEEE International Symposium on Parallel and Distributed Processing with Applications, ISPA 2009

作者： Zeng, Lingfang Feng, Dan Veeravalli, Bharadwaj Wei, Qingsong Division of Data Storage System Wuhan National Laboratory for Optoelectronics Key Laboratory of Information Storage Wuhan 430074 China School of Computer Science and Technology Huazhong University of Science and Technology Wuhan 430074 China Department of Electrical Computer Engineering National University of Singapore Singapore 117608 Singapore Data Storage Institute Singapore 117608 Singapore

ISBN: (纸本)9780769537474

With our society more information-driven, we have begun to distribute data in wide-area storage systems. At the same time, both physical failure and logic error have made it difficult to bring the necessary recovery to bear on remote data disaster, and understanding this proceeding. We describe ARRAY, a system architecture for data disaster recovery that combines reliability, storage space, and security to improve performance for data recovery applications. The paper presents an exhaustive analysis of the design space of ARRAY systems, focusing on the trade-offs between reliability, storage space, security, and performance that ARRAY must make. We present RSRAII (Replication-based Snapshot Redundant Array of Independent Imagefiles) which is a configurable RAIDlike data erasure-coding, and also others benefits come from consolidation both erasure-coding and replication strategies. A novel algorithm is proposed to improve snapshot performance referred to as SMPDP (Snapshot based on Multi-Parallel Degree Pipeline).

关键词： Recovery

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Sub-sentence division for tree-based machine translation

Sub-sentence division for tree-based machine translation

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Joint Conference of the 47th Annual Meeting of the Association for Computational Linguistics and 4th International Joint Conference on Natural Language Processing of the AFNLP, ACL-IJCNLP 2009

作者： Xiong, Hao Xu, Wenwen Mi, Haitao Liu, Yang Liu, Qun Key Lab. of Intelligent Information Processing Institute of Computing Technology Chinese Academy of Sciences P.O. Box 2704 Beijing 100190 China Key Lab. of Computer System and Architecture Institute of Computing Technology Chinese Academy of Sciences P.O. Box 2704 Beijing 100190 China

ISBN: (纸本)9781617382581

Tree-based statistical machine translation models have made significant progress in recent years, especially when replacing 1-best trees with packed forests. However, as the parsing accuracy usually goes down dramatically with the increase of sentence length, translating long sentences often takes long time and only produces degenerate translations. We propose a new method named subsentence division that reduces the decoding time and improves the translation quality for tree-based translation. Our approach divides long sentences into several sub-sentences by exploiting tree structures. Large-scale experiments on the NIST 2008 Chinese-to-English test set show that our approach achieves an absolute improvement of 1.1 BLEU points over the baseline system in 50% less time. © 2009 ACL and AFNLP.

关键词： Machine translation

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A secure e-auction scheme based on group signatures

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information systems Frontiers 2009年第3期11卷 335-343页

作者： Lee, Cheng-Chi Ho, Pi-Fang Hwang, Min-Shiang Department of Computer and Communication Engineering Asia University Lioufeng Raod Wufeng Shiang Taichung Taiwan Graduate Institute of Networking and Communication Engineering Chaoyang University of Technology 168 Gifeng E Rd. Wufeng Taichung Country 413 Taiwan Department of Management Information System National Chung Hsing University 250 Kuo Kuang Road Taichung 402 Taiwan

Recently, electronic auctions have been receiving more and more attention in the world of electronic commerce. The security and efficiency of electronic auctions are becoming important. We shall propose a securely sealed-bid auction scheme that uses our group signature scheme with the function of authenticated encryption. It can achieve the following goals: secrecy of bidding price, anonymity, verifiability, non-repudiation, and better performance. © 2008 Springer Science+Business Media, LLC.

关键词： Electronic commerce

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A design of far-field speaker localization system using independent component analysis with subspace speech enhancement

A design of far-field speaker localization system using inde...

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11th IEEE International Symposium on Multimedia, ISM 2009

作者： Chen, Shi-Huang Wang, Jhing-Fa Chen, Miao-Hai Sun, Zheng-Wei Liao, Min-Jian Lin, Shun-Chieh Chang, Shyang-Jye Dept. of Computer Science and Information Engineering Shu-Te University Taiwan Dept. of Electrical Engineering National Cheng Kung University China Home Networking Technology Center Industrial Technology Research Institute Taiwan Micro System Technology Center Indust. Technol. Res. Inst. Taiwan

ISBN: (纸本)9780769538907

In this paper, we propose a design of far-field single speaker localization system including noisy speech separation and enhancement with two separated channel microphones. First, we perform noisy speech separation simulations using a Fast-ICA (independent component analysis) with subspacebased speech enhancement. The Fast-ICA can be used to separate the two original source signals - noise and speech from their mixtures. Subspace-based speech enhancement is then utilized to reduce the residual background noise of the separated speech. Second, we calculate time-difference-of-arrival (TDOA) estimation for five directions of both right and left sides in the horizontal plane to realize speaker localization. The TDOA method estimates the time delay difference between the incoming speech signals to microphones using the average magnitude difference function (AMDF) algorithm. Finally we evaluate the localization system under various noisy environments. The experimental results reveal that the applicability of a system with noisy speech separation and enhancement, particularly for the front directions. © 2009 IEEE.

关键词： Time difference of arrival

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Impact of Hazards on Pattern Selection for Small Delay Defects

Impact of Hazards on Pattern Selection for Small Delay Defec...

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Pacific Rim International Symposium on Dependable Computing

作者： Jie Wang Huawei Li Yinghua Min Xiaowei Li Huaguo Liang School of Computer and Information Hefei University of Technology Hefei China Key Laboratory of Computer System and Architecture Institute of Computing Technology Chinese Academy and Sciences Beijing China

Hazards ubiquitously exist in combinational circuits, and then should be taken into account for delay testing. This paper analyzes the impact of hazards on small-delay defect (SDD) detection, and presents a new test pattern selection method considering hazards. The concept of arrival time window is introduced and the concept of output deviation is redefined to accurately reflect the pattern capability on SDD detection. A new signal transition probability calculation method is presented to calculate output deviation more practical than that without considering hazards. Patterns from an N-detect test set for transition faults are then selected according to their output deviations. Experimental results show that, for the same pattern count, the patterns selected by the proposed method excite more long paths, and are capable of detecting more small delay defects at the early stage of delay testing compared to the method without considering hazards.

关键词： Hazards Circuit testing Circuit faults Automatic test pattern generation Delay effects Timing Clocks Propagation delay Logic testing Crosstalk

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Dijkstra beats genetic algorithm: Integrating uncomfortable intersection-turns to subjectively optimal route selection

Dijkstra beats genetic algorithm: Integrating uncomfortable ...

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IEEE 7th International Conference on Computational Cybernetics, ICCC 2009

作者： Kambayashi, Yasushi Yamachi, Hidemi Tsujimura, Yasuhiro Yamamoto, Hisashi Department of Computer and Information Engineering Nippon Institute of Technology 4-1 Gakuedai Miyashiro-cho Minamisaitama-gun Saitama 345-8501 Japan Faculty of System Design Tokyo Metropolitan University 6-6 Asahigaoka Hino City Tokyo 191-0065 Japan

ISBN: (纸本)9781424453115

Route selection is one of the most important problems for a car navigation system. Given a pair of origin and destination, there are many possible routes. Most current car navigation systems propose the shortest path from the origin to the destination. Selecting the shortest path is not a hard problem, but the shortest path is not always what the user wants;what the user really wants to have is the most comfortable route for him or her to drive. In other words, the driver wants to have a car navigation system to propose the subjectively optimal route for him or her. Finding such a route requires enumerating all the possible routes, and is known as a NP-complete problem. In order to reduce computational complexity, we employed a GA to find a (subjectively) quasi-optimal route for the driver. In the previous paper, we reported our attempt to integrate uncomfortable-turns to our GA-based route selection algorithm. Even though GA provided a quasi-optimal route in most cases and certainly much faster than exhaustive search, we have found that the classical Dijkstra algorithm can be used to find subjectively the most comfortable route by changing the data structure. In this paper, we show how the data structure that represents routes can be modified to assist Dijkstra's algorithm to find subjectively optimal driving route. The numerical experiments demonstrate the feasibility of our route selection based on Dijkstra algorithm with extended data structure. ©2009IEEE.

关键词： Data structures

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Modified Differential Evolution for Hard Constrained Optimization

Modified Differential Evolution for Hard Constrained Optimiz...

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International Conference on Computational Intelligence and Software engineering (CiSE)

作者： Changshou Deng Bingyan Zhao Anyuan Deng Changyong Liang School of Information Science and Technology Jiujiang University Jiujiang Jiangxi China Institute of Computer Network System Hefei University of Technology Hefei Anhui China

Hard constrained optimization problems in science and engineering are common computationally very expensive. This leads to serious impediment to the successful application of evolutionary optimization techniques. A modified Differential Evolution with hybrid mutation and new selection rules was proposed to solve the hard constrained optimization problem. The hybrid mutation is the linear combination of two different traditional mutations schemes using simulated annealing way. The new selection rule can handle the constraints directly without choosing the penalty factors difficultly. The simulation results on the Bump function show it is effective and robust way for solving the hard constrained optimization.

关键词： Constraint optimization Genetic mutations Evolutionary computation Cities and towns Simulated annealing information science Impedance Application software computer networks Computational modeling

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Digital cinema wireless transmission and its windows application

Digital cinema wireless transmission and its windows applica...

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International Symposium on Communications and information Technologies (ISCIT)

作者： Yuya Hirata Masateru Matsuo Masayuki Kurosaki Wahyul Amien Syafei Baiko Sai Yoshimitsu Kuroki Akio Miyazaki Yuhei Nagao Hiroshi Ochi Department of Computer Science and Electrical Kyushu Institute of Technology Fukuoka Japan Department of Social Information System Engineering Kurume National College of Technology Kurume Japan Department of Social Information System Kyushu Sangyo University Fukuoka Japan

ISBN: (纸本)9781424445219

In this paper, we propose a 4 K digital cinema transmission over 1.2 Gbps wireless LAN system. The proposed system employs the next generation wireless LAN system based on IEEE802.11ac task group. It reaches more than 33 meter propagation distance by using 80 MHz of bandwidth on 5 GHz band. In this system, a video data is compressed by JPEG 2000 with error resilience tools. These tools improve error performance against wireless channel, and enable very high throughput communication. computer simulations are used to evaluate the bit error performance's influences to the video quality. In addition, we implement the proposed system using wired LAN under Windows XP operating system.

关键词： Motion pictures computer errors Wireless LAN Video compression Bandwidth Transform coding Resilience Throughput computer simulation Local area networks

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