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2012全国高性能计算学术年会

作者： ZHANG Qing-Ke 张庆科 Yang Bo 杨波 Wang Lin 王琳 Zhu Fu-Xiang 朱福祥 Shandong Provincial Key Laboratory of Network Based Intelligent Computing University of JinanJinan 济南大学山东省网络环境智能计算技术重点实验室中国济南 250022 Computer Networks and distributed Systems Laboratory Beijing institute of technologyBeijing100081 北京理工大学计算机学院网络与分布式计算研究所中国北京 10081

本文提出了一种新的基于多层多基因表达式编程的进化算法M-MEP.本算法引入了多层超级染色体概念并采用多层染色体模型对个体进行并行表达，算法在解决函数发现和预测问题中取得了良好的效果.本文的主要贡献：(1)提出了基于多层染色体的... 详细信息

本文提出了一种新的基于多层多基因表达式编程的进化算法M-MEP.本算法引入了多层超级染色体概念并采用多层染色体模型对个体进行并行表达，算法在解决函数发现和预测问题中取得了良好的效果.本文的主要贡献：(1)提出了基于多层染色体的多基因表达式编程算法M-MEP;(2)建立了不同子层染色体内部微基因跨层引用的模型以及多级存储结构;(3)提出了基于二维空间的染色体多元化遗传操作，包括二维交叉操作和二维变异操作.通过三组不同类别的数值分析实验和一组工业应用实验的对比分析结果表明M-MEP算法收敛速度快，进化结果精度高，算法的平均进化代数大幅降低.

关键词：遗传进化算法多基因表达式编程超级染色体微基因跨层引用

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Extended Doo-Sabin surfaces

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Journal of Information and Computational Science 2011年第12期8卷 2239-2247页

作者： Huang, Zhangjin Wang, Feng Wang, Guoping School of Computer Science and Technology University of Science and Technology of China China Key Laboratory of Software in Computing and Communication Anhui Province China USTC-SICT Joint Laboratory on Network and Communication China Peking University China School of Electronic Engineering and Computer Science Peking University China

In this paper we propose a modification of quadratic NURSSes called EDSes (Extended Doo-Sabin Surfaces). EDSes inherit the refinement rules for quadratic NURSSes for four-sided faces but use the refinement rules for Doo-Sabin surfaces for faces with other than four sides. Compared to quadratic NURSSes, if all the knot intervals are positive, EDSes always converge to G1 continuous limit surfaces with closed-form limit point as well as limit normal rules. 1548-7741/Copyright © 2011 Binary Information Press.

关键词： Information systems

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Runtime-Based Boot Components Re-measurement Scheme for Trusted Platform

Runtime-Based Boot Components Re-measurement Scheme for Trus...

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2011 International Conference on Informatics,Cybernetics,and Computer Engineering(ICCE 2011)

作者： Peng Weiping Zhou Yajian Wang Cong Yang Yixian Key Laboratory of Network and Information Attack & Defence Technology of MOE Beijing University of Posts and Telecommunications School of Computer Science and Technology Henan Polytechnic University Information Security Center State Key Laboratory of Networking and Switching TechnologyBeijing University of Posts and Telecommunications National Engineering Laboratory for Disaster Backup and Recovery Beijing University of Posts and Telecommunications

Integrity measurement is just one of the most important features in a trusted computing platform to provide evidence of platform configuration and behavior. Each set of software instructions(binary code) is measured and recorded before it is executed. Especially, all of boot components which be recorded in pre-boot stage can't be re-measured until the platform is rebooted. However, the reality is that many components belong to pre-boot stage, such as BIOS, Boot Loader and MBR, are easily modified or updated in runtime environment. If these updated results of components are treated as configuration requirements for a remote server-side to verify the access request, the remote network access connection will fail. It must restart the host to re-measure there components, and the result of the new measure is not guaranteed right absolutely. We solve this problem by embedding Integrity Measurement Agency Component(IMAC) which has the capability of monitoring transformation, verifying credibility, updating Platform Configuration Registers and recording integrity measurement logs in Linux kernel. The result of performance analysis demonstrates that the method is feasible and credible.

关键词： Trusted computing Boot Components PCR Integrity measurement Agency Component

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A Hybrid Watermarking Technique to Resist Tampering and Copy Attacks

A Hybrid Watermarking Technique to Resist Tampering and Copy...

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International Symposium on Intelligence Information Processing and Trusted computing (IPTC)

作者： Peng Zheng Weihua Wang Juan Wang School of Computer Wuhan University of China Wuhan Hubei China Anyang Institute of Technology Anyang Henan China Key Laboratory of AeroSpace Information Security and Trust Computing Ministry of Education Wuhan Hubei China

Digital watermarking is an efficient method to protect multimedia documents. Robust watermarks, which survive to any change or alteration of the protected documents, are typically used for copyright protection. Fragile watermarks, which are vulnerable to a little alteration, are typically used for content authentication. In the paper, we propose a hybrid watermarking method joining a robust and a fragile watermark, and thus combining copyright protection and content authentication. As a result this approach is at the same time resistant against tampering and copy attacks. Our contribution is setting up the relationship between fragile watermark and robust watermark. We make use of DCT coefficients to embed watermark information. The experimental results show that the proposed method can resist tampering and copy attacks at the same time.

关键词： Watermarking Robustness Discrete cosine transforms Image edge detection Authentication Resists

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Strong security Enabled Certificateless Aggregate Signatures Applicable to Mobile Computation

Strong Security Enabled Certificateless Aggregate Signatures...

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International Conference on Intelligent networking and Collaborative Systems (INCOS)

作者： Hu Xiong Qianhong Wu Zhong Chen Key Laboratory of Network and Software Security Assurance of the Ministry of Education Institute of Software School of Electronics Engineering and Computer Science Peking University Beijing China Department of Computer Engineering and Mathematics UNESCO Chair in Data Pr Universitat Rovira i Virgili Tarragona Spain Key Laboratory of AeroSpace Information Security and Trusted Computing Ministry of Education School of Computer Wuhan University of China China

An aggregate signature scheme allows a public algorithm to aggregate n signatures of n distinct messages from n signers into a single signature. By validating the single resulting signature, one can be convinced that the messages have been endorsed by all the signers. Certificateless aggregate signatures allow the signers to authenticate messages without suffering from the complex certificate management in the traditional public key cryptography or the key escrow problem in identity-based cryptography. In this paper, we present a new efficient certificate less aggregate signature scheme. Compared with up-to-date certificate less aggregate signatures, our scheme is equipped with a number of attracting features: (1) it is shown to be secure under the standard computational Diffie-Hellman assumption in the random oracle model, (2) the security is proven in the strongest security model so far, (3) the signers do not need to be synchronized, and (4) its performance is comparable to the most efficient up-to-date schemes. These features are desirable in a mobile networking and computing environment where the storage/computation capacity of the end devices are limited, and due to the wireless connection and distributed feature, the computing devices are easy to be attacked and hard to be synchronized.

关键词： Aggregates Games Generators Synchronization Public key cryptography

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A Trust-Personality Mechanism for Emotion Compensation

A Trust-Personality Mechanism for Emotion Compensation

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International Conference on Advanced Learning Technologies (ICALT)

作者： Jiwei Qin Qinghua Zheng Feng Tian Department of Computer Science and Technology Xi'an Jiaotong University Xi'an China Xi'an Jiaotong University Xi'an Shaanxi CN Ministry of Education Key Laboratory for Intelligent Networks and Network Security Xi'an Jiaotong University Xi'an China

E-learning provides an unprecedented flexibility and convenience for learners via breaking the limitation of space-time. Most researchers are only concerned about the learner's cognitive and construct a great amount of substantive digital learning resources, however they neglect of the learners' affect in current e-learning systems. In this paper, we focus primarily on the negative affect of learners, and propose an emotion compensation mechanism associated with trust and personality traits in traditional recommender technology. First, we analyze the difference between emotion compensation and traditional recommender. Next, the score of trust is calculated with historical behavior, otherwise depend on similarity of personality traits without historical experience. We use trustworthiness to replace similarity as prediction weight in trust filtering process. At last we do experiments with data collected in previous system named emotion-chatting. Compared with results of experiments between traditional recommender and trust-personality recommender, the average of accuracy is improved 4 points in percentage.

关键词： Recommender systems Electronic learning Accuracy Internet Psychology Context

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A Topic Partition Algorithm Based on Average Sentence Similarity for Interactive Text

A Topic Partition Algorithm Based on Average Sentence Simila...

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International Conference on Computational Intelligence and security

作者： Haiping Zhu Yan Chen Yang Yang Chao Gao Ministry of Education Key Laboratory of Intelligent Networks and Network Security Xi'an Jiaotong University Xi'an China Xi'an Jiaotong University Xi'an Shaanxi CN Department of Computer Science and Technology Xi'an Jiaotong University Xi'an China

Based on the research and analysis of interactive text properties, the word frequency statistics and synonyms merger are imported to obtain the keywords of interactive text. The Sentence similarity is used to describe the degree of coupling between sentences. Then a novel topic partition algorithm based on average sentence similarity is proposed. The experimental results show the effectiveness of the algorithm. Along with the mining of the deep correlations among texts, the algorithm precision and accuracy will be improved.

关键词： Partitioning algorithms Educational institutions Semantics Algorithm design and analysis Computer science Electronic mail Correlation

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A method for translating belief function models to probability models

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Journal of Information and Computational Science 2011年第10期8卷 1817-1823页

作者： Xu, Peida Wu, Jiyi Li, Ya Cong, Jiang Sun, Xiaohong Kang, Bingyi Deng, Yong School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University Shanghai 200240 China Hangzhou Key Laboratory of E-Business and Information Security Hangzhou Normal University Zhejiang 310036 China College of Food Science and Technology Shanghai Ocean University Shanghai 201306 China Key Laboratory of Intelligent Computing and Information Processing of Ministry of Education Xiangtan University Hunan 411105 China Key Subject Laboratory of National defense for Radioactive Waste and Environmental Security Southwest University of Science and Technology Mianyang 621010 China College of Computer and Information Sciences Southwest University Chongqing 400715 China

One of the key issues in the applications of Dempster-Shafer evidence theory is how to make a decision based on Basic Probability Assignment (BPA). The conventional method is Pignistic Probability Transformation (PPT), which transforms BPA to probability distribution with equally assignment. To solve the existing problems of pignistic probability transformation, a new transformation method using an optimization algorithm based on the conflict coefficient k is proposed in this paper. The obtained probability has the minimum conflict coefficient with the original BPA. Numerical examples are used to illustrate the efficiency of the proposed method. © 2011 by Binary Information Press.

关键词： Decision making

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Assessment of genetically modified food security-first results

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Journal of Information and Computational Science 2011年第12期8卷 2493-2500页

作者： Chai, Jie Wu, Jiyi Cong, Jiang Sun, Xiaohong Kang, Bingyi Deng, Yong School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University Shanghai 200240 China Hangzhou Key Laboratory of E-Business and Information Security Hangzhou Normal University Zhejiang 310036 China College of Food Science and Technology Shanghai Ocean University Shanghai 201306 China Key Laboratory of Intelligent Computing and Information Processing of Ministry of Education Xiangtan University Hunan 411105 China Key Subject Laboratory of National Defense for Radioactive Waste and Environmental Security Southwest University of Science and Technology Mianyang 621010 China College of Computer and Information Sciences Southwest University Chongqing 400715 China

With the development of Genetically Modified (GM) food, security issue is being paid increasing attention. In this paper, a comprehensive model taking account factors which influencing GM food security is proposed. Analytical Hierarchy Process (AHP) is used to derive the weight of each attribute in different levels according to their importance. Basic Probability Assignment (BPA) function is generated by the safety degree of each element, then we use BPA function of the Dempster-Shafer evidence to represent the inclination of the elements. The safety degree of GM food will be get when weight was used as the discount factor and each attribute data was combined based on discount combination rule. 1548-7741/Copyright © 2011 Binary Information Press.

关键词： Safety factor

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A more effective definition of evidential conflict combined with evidential distance

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Journal of Information and Computational Science 2011年第9期8卷 1729-1734页

作者： Chen, Yuxin Wu, Jiyi Cong, Jian Jie, Wenjing Deng, Yong School of Electronics and Information Technology Shanghai Jiao Tong University Shanghai 20024 China Hangzhou Key Lab of E-Business and Information Security Hangzhou Normal University Hangzhou 310036 China College of Food Science and Technology Shanghai Ocean University 999 Hucheng Huan Road Shanghai 201306 China Key Subject Laboratory of National Defense for Radioactive Waste and Environment Security Southwest University of Science and Technology Mianyang 621010 China Key Laboratory of Intelligent Computing and Information Processing of Ministry of Education Xiangtan University Xiangtan Hunan 411105 China College of Computer and Information Sciences Southwest University Chongqing 400715 China

Evidence theory is widely used in many application systems such as information fusion and decision making under uncertainty environment. However, the classical Dempster combination rule is not efficient to deal with highly conflicting evidences. One of the open issues is how to determine the conflict degree in conflict evidence management. In this paper, a new conflict coefficient is proposed to measure the conflict degree between bodies of evidence. It can overcome some drawbacks of the classical conflict coefficient. The numerical example shows the efficiency of our proposed method. Copyright © 2011 Binary Information Press.

关键词： Information fusion

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