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2nd International Conference on Multimedia Technology, ICMT 2011

作者： Zhu, Haiping Yang, Yang Chen, Yan Yu, Xiaolu Department of Computer Science and Technology Xi'an Jiaotong University Min. of Education Key Lab for Intelligent Networks and Network Security of xi'An Jiaotong University Xi'an China

ISBN: (纸本)9781612847740

This paper is based on identification and extraction of topic elements for Chinese interactive text. A topic segmentation method based on time sequence is achieved. Then a novel identification and extraction algorithm of topic elements is proposed. Firstly, noise filtering and Chinese word segmentation on the original corpus are executed. Secondly, the identifying and extracting method in group of mixed turn is used to extract the topic elements, such as time, place and figure. Finally, performance evaluation of identification recall, identification accuracy and extraction accuracy are achieved. The experimental results show the effectiveness of the algorithm. © 2011 IEEE.

关键词： Extraction

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A survey on cloud storage

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Journal of computers 2011年第8期6卷 1764-1771页

作者： Ju, Jiehui Wu, Jiyi Fu, Jianqing Lin, Zhijie School of Information and Electronic Engineering Zhejiang University of Science and Technology Hangzhou China Key Lab of E-Business and Information Security Hangzhou Normal University Hangzhou China School of Computer Science and Technology Zhejiang University Hangzhou China

As interest in the cloud increases, there has been a lot of talk about the maturity and trustworthiness of cloud storage technologies. Is it still hype or is it real? Many endusers and IT managers are getting very excited about the potential benefits of cloud storage, such as being able to store and manipulate data in the cloud and capitalizing on the promise of higher-performance, more scalable, and cheaper storage. In this paper, we present a typical Cloud Storage system architecture, a reference Cloud Storage model and Multi-Tenancy Cloud Storage model, survey the past and the state-of-the-art of Cloud Storage, and discuss the Advantage and challenges that must be addressed to implement Cloud Storage. Use cases in various Cloud Storage offerings were also summarized. © 2011 ACADEMY PUBLISHER.

关键词： Surveys

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An anonymity and authentication mechanism for internet of things

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Journal of Convergence information Technology 2011年第3期6卷 98-105页

作者： Wang, Xiaoliang Sun, Xingming Yang, Hengfu Shah, Saeed Arif College of Information Engineering Xiangtan University Xiangtan 411105 China Department of Computer Science and Technology Nanjing University of Information Science and Technology Nanjin 210044 China Department of Information Science and Engineering Hunan First Normal University Changsha 410205 China Hunan Provincial Key Laboratory of Network and Information Security Hunan University Changsha 410082 China

Authentication has received increasing attention in the literatures of Internet of Things. At the same time, numerous concerns have been raised about the issue of anonymity due to users' awareness of their privacy nowadays. How to achieve trade-off between anonymity and certification simultaneously? In this paper, we propose a security architecture to ensure anonymity and certification for Internet of Things. We use pseudonym and threshold secret sharing approach to resolve conflict between anonymity and certification. Moreover, the implementation of Bloom filter offers security authentication for remote command. security analysis shows that the proposed mechanism can perfectly achieve tradeoff between anonymity, certification, and also resist impersonation, tamper as well as compromise attacks.

关键词： Internet of things

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SWP2P: P2P anonymous trace system based on superposition watermarking

International Journal of Digital Content Technology and its ...

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International Journal of Digital Content Technology and its Applications 2011年第8期5卷 116-126页

A lot of attention has been paid to anonymity due to the users' privacy protection. While peer-topeer (P2P) networks need anonymity capacity, the authority also requires partner traceability to prevent anonymous abuse. So there is a challenge to harmonize the dilemma between the anonymity and authentication in P2P networks. Few P2P protocol provides complete anonymity as well as traceability. In this paper, we propose a security mechanism to ensure anonymity for honest peers and traceability for misbehaving peers in P2P systems. We utilize superposition watermarking based anonymity trace scheme to resolve the conflicts between traceability and anonymity. This scheme uses information processing technology similar to CDMA to superpose path information. security analysis and simulation result show that the superposition watermarking based P2P anonymity trace scheme (SWP2P) can attain tradeoff between anonymity and traceability perfectly.

关键词： Watermarking

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Secret and reliable coding mechanism for noncoherent multisource network coding

Secret and reliable coding mechanism for noncoherent multiso...

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IEEE International Conference on Communication Software and networks

作者： Chen, Siguang Wu, Meng Lu, Weifeng Jin, Yi College of Computer Science Nanjing University of Posts and Telecommunications Nanjing China College of Telecommunications and Information Engineering Nanjing Univ. of Posts and Telecommunications Nanjing China Key Lab of Broadband Wireless Communication and Sensor Network Technology Ministry of Education China College of Informatics and Electronics Zhejiang Sci-Tech University Hangzhou China

ISBN: (纸本)9781612844855

This work considers the communication scenario where multiple sources transmit information to one or more receivers and these receivers request the information from all the sources. We construct a secret and reliable coding mechanism for noncoherent multisource network coding by extending the work [9, 10] to multisource case. Although the network scenario suffers from an adversary that can re-select the tapping links in different time slot and inject z erroneous packets into network, and the transmission links suffer from a packet erasures, our scheme can retrieve the original information secretly and accurately from the corrupt and deficient information. Meanwhile, the secret and reliable multisource network coding scheme can obtain an asymptotic achievable rate of k2z3. © 2011 IEEE.

关键词： network coding

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Distributed Angle Estimation for Wireless Sensor network Localization with Multipath Fading

Distributed Angle Estimation for Wireless Sensor Network Loc...

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IEEE International Conference on Communications (ICC)

作者： Weile Zhang Qinye Yin Hongyang Chen Wenjie Wang Tomoaki Ohtsuki MOE Key Laboratory for Intelligent Networks and Network Security Xi''an Jiaotong University Xi'an China Institute of Industrial Science University of Tokyo Tokyo Japan Department of Information and Computer Science Keio University Yokohama Japan

In this paper, we propose a distributed angle estimation method for wireless sensor network localization with multipath fading. The multiple antenna system is equipped at the anchor and the angle of departure (AOD) can be estimated individually at each sensor node with single antenna system. Further, we exploit the space diversity to improve the estimation performance by deploying multiple parallel arrays at the anchor. Analysis and simulations demonstrate the effectiveness of our method.

关键词： Estimation Receivers Peer to peer computing Wireless sensor networks Interference Delay Transceivers

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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 New Method of Aggregation of Fuzzy Number Based on the Dempster/Shafer Theory

A New Method of Aggregation of Fuzzy Number Based on the Dem...

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2011 China Control and Decision Conference(2011中国控制与决策会议 CCDC)

作者： Yong Deng Bing Yi Kang Ya Juan Zhang Xin Yang Deng Ji Yi Wu Xiao Hong Sun School of Computer and Information Sciences Southwest University Chongqing 400715 China School of Computer and Information Sciences Southwest University Chongqing 400715 China Key Subj Hangzhou Key Lab of E-Business and Information Security Hangzhou Normal University Hangzhou Zheji College of Food Science and Technology Shanghai Ocean University Shanghai 201306 China

There exists lots of fuzzy and imprecise information with the development of society and technology. How to combine and evaluate these information becomes significant. This paper takes the proportion of the membership function values into consideration and makes use of each interval area value compared with the whole area of fuzzy number to measure the distribution of the membership function values. A triangular membership function was used to represent the fuzzy numbers. Then, the BPA of each point selected can be gained through multiplying the membership function values with their proportion respectively. At last,the D/S Theory was used to aggregate the fuzzy numbers. Through an instance, we get an acceptable result.

关键词： D/S theory fuzzy number BPA

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Evaluation for Multi-objective Threat Based on Min-Distance among Interval Numbers

Evaluation for Multi-objective Threat Based on Min-Distance ...

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2011 China Control and Decision Conference(2011中国控制与决策会议 CCDC)

作者： Bing Yi Kang Xin Yang Deng Ya Juan Zhang Ji Yi Wu Xiao Hong Sun Yong Deng School of Computer and Information Sciences Southwest University Chongqing 400715 China Hangzhou Key Lab of E-Business and Information Security Hangzhou Normal University Hangzhou Zheji College of Food Science and Technology Shanghai Ocean University Shanghai 201306 China School of Computer and Information Sciences Southwest University Chongqing 400715 China Key Subj

Evaluation for target threat is an important part in the defensive decision making. As to each target, there are multiple attributes described by fuzzy or uncertain information which is represented with interval numbers. How to integrate these fuzzy information becomes a meaningful work. This paper integrates the fuzzy numbers by introducing the distance among interval numbers to. nd a special interval number whose distance is the optimal value from all other interval numbers, then the comparison between multi-attributive targets is transformed into the comparison among only several interval numbers. On this basis, this paper solves the question about how to make a sequence among the aerial targets according to their different threat degrees.

关键词： Integration of interval numbers threat evaluating multi-objective

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E-commerce security assessment under group decision making

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Journal of information and Computational Science 2011年第1期8卷 7-15页

作者： Zhang, Yajuan Deng, Xinyang Li, Ya Wu, Jiyi Sun, Xiaohong Deng, Yong School of Computer and Information Sciences Southwest University Chongqing 400715 China Hangzhou Key Lab of E-Business and Information Security Hangzhou Normal University Hangzhou Zhejiang 310036 China Key Subject Lab. of National defense for Radioactive Waste and Environmental Security Southwest University of Science and Technology Mianyang Sichuan 621010 China College of Food Science and Technology Shanghai Ocean University Shanghai 201306 China School of Electronics and Information Technology Shanghai Jiaotong University Shanghai 200240 China

Inherent complexity and uncertainty of E-commerce security necessitate the participation of many experts in multi criteria decision making. One of the key problems in the assessment of E-commerce security is how to successfully combine experts' opinions in realistic decision making. In this paper, a method is proposed to facilitate the assessment of E-commerce security by aggregating individual expert's assessment on multi criteria into a consensus decision. At first, AHP method, based on hierarchical structure, is used to calculate the weights of each issue associated with E-commerce security. Then, evidential reasoning is integrated to combine multi criteria from bottom to top in the structure and then combined with the distance method to aggregate assessment of each expert. Finally, a numerical example is presented to illustrate the efficiency of our method in the assessment of E-commerce security. © 2011 Binary information Press.

关键词： Decision making

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