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Pacific (formerly Asia-Pacific APVIS) Visualization Symposium

作者： Yunhai Wang Wei Chen Guihua Shan Tingxin Dong Xuebin Chi Graduate University of Chinese Academy of Science USA State Key Laboratory of CAD&CG University of Zhejiang China Computer Network Information Center Chinese Academy and Sciences China

ISBN: (纸本)9781424466856

This paper presents an interactive transfer function design tool based on ellipsoidal Gaussian transfer functions (ETFs). Our approach explores volumetric features in the statistical space by modeling the space using the Gaussian mixture model (GMM) with a small number of Gaussians to maximize the likelihood of feature separation. Instant visual feedback is possible by mapping these Gaussians to ETFs and analytically integrating these ETFs in the context of the pre-integrated volume rendering process. A suite of intuitive control widgets is designed to offer automatic transfer function generation and flexible manipulations, allowing an inexperienced user to easily explore undiscovered features with several simple interactions. Our GPU implementation demonstrates interactive performance and plausible scalability which compare favorably with existing solutions. The effectiveness of our approach has been verified on several datasets.

关键词： Transfer functions Signal analysis Data visualization Oscilloscopes Prototypes Feedback Electrical engineering Navigation Laboratories Time series analysis

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Enhancing fairness: A novel C2C e-commerce community member reputation algorithm based on transaction social networks

Enhancing fairness: A novel C2C e-commerce community member ...

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IADIS International Conference WWW/Internet 2010

作者： Feng, Wangsen Zhang, Bei Xia, Yunni Li, Jiajing Meng, Tao Key Laboratory of Network and Software Security Assurance of Ministry of Education Computing Center Peking University Beijing 100871 China College of Computer Science Chongqing University Chongqing 400044 China School of Mechanical Electronic and Information Engineering China University of Mining and Technology Beijing 100083 China Institute of Computing Technology Chinese Academy of Sciences Beijing 100190 China

ISBN: (纸本)9789728939250

Today, almost all the C2C e-commerce community member reputation evaluating algorithms are time sensitive. The reputation of a community member is accumulated after transactions and the increment of reputation after a successful transaction is computed based on the score given by his or her transaction partner. Since people always tend to do business with those with high reputation value, the reputation of members joined in C2C community at different time will vary greatly although they may provide the same commodity quality and service. It is unfair to new comers. In this paper, we propose a novel algorithm to overcome the shortcoming. Based on the transaction social network, our algorithm employs the random walk strategy to compute member reputation and enhance system fairness. © 2010 IADIS.

关键词： Electronic commerce

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Design of the late-model key exchange algorithm based on the polymorphic cipher

Design of the late-model key exchange algorithm based on the...

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IEEE International Conference on Industrial Engineering and Engineering Management

作者： Yifeng Yin Yong Gan Hongyan Liu Yupu Hu School of Computer and Communication Engineering Zhengzhou University of Light Industry Zhengzhou China NO.202 Institute of China Ordnance Industry Xianyang China Key Laboratory of Computer Network & Information Security Xidian University Xi'an China

ISBN: (纸本)9781424485017

Diffie-Hellman key exchange algorithm, which is used in regular scenes base on the discrete logarithm problem, demands that typically two communication parties should struck up a lively conversation leading to a long-term dependable fellowship. A high efficiency the polymorphic key exchange algorithm is proposed that is based on the polymorphic key exchange protocol. The identity information of two parties can be appended to the agreement. Both communication parties use their PRNGs to finish the polymorphic virtual S-box together. The security of the PRNG was analyzed by the Strict Avalanche Criterion and some experimental results. It was proposed that the polymorphic key exchange algorithm can become a broad agreement in irregular scenes.

关键词： Generators Cryptography Protocols Algorithm design and analysis Communication channels Receivers

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Enhance information Flow Tracking with Function Recognition

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China Communications 2010年第6期7卷 24-29页

作者： Zhou Kan Huang Shiqiu Huang Shan Qi Zhengwei Gu Jian Guan Haibing School of software Shanghai Jliao Tong University Shanghai 200240 P. R. China Key Lab of Information Network Security Ministry of Public Security Department of Computer Science ＆ Engineering Shanghai Jiao Tong University Shanghai 200240 P. R China Shanghai Key Laboratory of Scalable Computing ＆ System Shanghai P. R. China

With the spread use of the computers, a new crime space and method are presented for criminals. Thus computer evidence plays a key part in criminal cases. Traditional computer evidence searches require that the computer specialists know what is stored in the given computer. Binary-based information flow tracking which concerns the changes of control flow is an effective way to analyze the behavior of a program. The existing systems ignore the modifications of the data flow, which may be also a malicious behavior. Thus the function recognition is introduced to improve the information flow tracking. Function recognition is a helpful technique recognizing the function body from the software binary to analyze the binary code. And that no false positive and no false negative in our experiments strongly proves that our approach is effective.

关键词： function recognition information flow tracking program behavior e-evidence.

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A Discriminative Model for Mongolian-English Word Alignment

A Discriminative Model for Mongolian-English Word Alignment

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Chinese Conference on Pattern Recognition (CCPR)

作者： Guanhong Zhang Odbal Department of Computer Science and Technology Key Laboratory of Network and Intelligent Information Processing Hefei University Hefei Anhui China Hefei Institutes of Physical Science Chinese Academy and Sciences Hefei Anhui China

In this paper we have developed a discriminative word alignment method using the liner CRF model for Mongolian-English language pair. Discriminative approaches have the ability to use large variety of features flexibly and to combine information from various sources. According to the differences between Mongolian and English, we discuss and select the different features, and experiments on Mongolian-English task demonstrate our word alignment model's superiority in performance over the popular GIZA++.

关键词： Data models Hidden Markov models Computational modeling Computational linguistics Gold Entropy Natural language processing

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Reduction Method of Regression Testing Requirements Based on Relation Mode

Reduction Method of Regression Testing Requirements Based on...

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International Conference on Computational Intelligence and Software Engineering (CiSE)

作者： Jing Chen Lu Wang Zhiquan Bai Yongjie Xu Software Testing Center Shandong Provincial Key Laboratory of Computer Network Jinan China Software Development Center Shandong Zhengfangrenhe Information Technology Co. Ltd Jinan China School of Information Science and Engineering Shandong University Jinan China

The variations in testing requirements often result in the problem of numerous test cases and low efficiency in regression testing. To solve this problem, a reduction method of testing requirements is proposed based on the relation mode in this paper. This method analyzes the relationship between the modules and testing requirements, then determines the varied regression testing requirements, and gets the final testing requirement set by reduction of the varied regression testing requirement set and the original testing requirement set in three times. If test cases are generated and reduced on the basis of the testing requirement reduction set, the efficiency of the regression testing will be improved.

关键词： Correlation Flowcharts Greedy algorithms information science Software testing Educational institutions

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OpenMP在悬架实时动力学中的应用

OpenMP在悬架实时动力学中的应用

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首届中国科学院超级计算应用大会(SCA2011)

作者： Ye Xianfeng 叶显锋 Chi Xuebing 迟学斌 Qiu Jun 邱君 Li Qiang 李强 Supercomputing Center Computer Network Information Center Chinese Academy of Sciences Beijing 100 中国科学院计算机网络信息中心超级计算中心北京 100190 中国科学院研究生院北京 100190 吉林大学汽车动态模拟国家重点实验室长春 130025 Supercomputing Center Computer Network Information Center Chinese Academy of Sciences Beijing 100 中国科学院计算机网络信息中心超级计算中心北京 100190 State Key Laboratory of Dynamic Simulation Jilin University Changchun 130025China 吉林大学汽车动态模拟国家重点实验室长春 130025 Supercomputing Center Computer Network Information Center Chinese Academy of Sciences Beijing 100 中国科学院计算机网络信息中心超级计算中心北京 100190 中国科学院研究生院北京 100190

悬架动力学模型中应用的串行算法满足不了车辆实时性的要求，本文延续原有的动力学模型，尝试了一种并行算法(OpenMP)，将之应用于悬架动力学，并改写了悬架动力学程序，经模拟结果验证，实时性得到了很大的提高。

关键词：汽车悬架动力学并行算法仿真分析

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Efficient and provably-secure certificateless blind signature scheme

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Beijing Gongye Daxue Xuebao/Journal of Beijing University of Technology 2010年第SUPPL. 2期36卷 64-69页

作者： Yang, Xiao-Yuan Chen, Hai-Bin Guo, Dun-Tao Key Laboratory of Network and Information Security of APF Engineering College of APF Xi'an 710086 China Key Laboratory of Computer Networks and Information Security Ministry of Education Xidian University Xi'an 710071 China

Combined blind signature with certificateless cryptography, we propose an efficient provable certificateless blind signature scheme, which is proved to be neither easier than the q-strong Diffie-Hellman problem nor harder than the inverse computational Diffie-Hellman problem. It enjoys all the security requirements of blind signature and is existential unforgeable against adaptively chosen message and chosen identity adversary in the random oracle model. The signing algorithm of the proposed scheme does not require any pairing computation, and the verification algorithm only needs one pairing computation. Compared with other known schemes, our scheme is more efficient by reason of requiring the least computational effort.

关键词： Authentication

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A Discriminative Model for Traditional Mongolian Part of Speech

A Discriminative Model for Traditional Mongolian Part of Spe...

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Chinese Conference on Pattern Recognition (CCPR)

作者： Guanhong Zhang sloglo Odbal Department of Computer Science and Technology Key Laboratory of Network and Intelligent Information Processing Hefei University Hefei Anhui China Inner Mongolia University for the Nationalities Hohhot Inner Mongolia China Hefei Institutes of Physical Science Chinese Academy and Sciences Hefei Anhui China

This paper presents a discriminative model for part of speech tagging of traditional *** use Maximum Entropy Model with Morphological features of Mongolian. First, the context feature templates are defined and extracted from the training corpus. Then, the parameters of maximum entropy probability models are calculated. Experimental results show that integration of morphological features of Maximum Entropy Model for Mongolian part of speech tagging outperform HMM since they are flexible enough to capture many correlated non-independent features.

关键词： Hidden Markov models Speech Tagging Entropy Accuracy Natural languages Computational modeling

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Notice of Retraction: Reliability-based CBM system design for feed water pump

Notice of Retraction: Reliability-based CBM system design fo...

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International Conference on computer Science and information Technology (CSIT)

作者： Qin Jinlei Niu Yuguang Li Zheng Information and Network Management Center North China Electric Power University Baoding China Key Laboratory of Condition Monitoring and Control for Power Plant Equipment Ministry of Education North China Electric Power University Baoding China Department of Computer Science and Technology North China Electric Power University Baoding China

This article has been retracted by the publisher.

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