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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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Document indexing in text categorization

Document indexing in text categorization

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International Conference on Machine Learning and Cybernetics (ICMLC)

作者： Qi-Rui Zhang Ling Zhang Shou-Bin Dong Jing-Hua Tan Guangdong Key Laboratory of Computer Network South China University of Technology Guangzhou China China Telecom-Guangzhou Research and Development Center Guangzhou China

Aiming at the characteristic of text categorization, this paper proposes an improved method of computing term weights, tfidfie, based on the traditional tfidf function that is generally used in most classifiers. In comparison with the tfidf function, the tfidfie function adds an information entropy factor, H, which represents the distribution of documents in the training set in which the term occurs. The experiments show tfidfie outperforms tfidf. In addition, this paper analyses the difference of using information entropy factor H between document categorization and feature selection, also finds that both two phases are all necessary for text categorization, meanwhile it can reach the best performance of classification with up to 70% of the unique terms being removed.

关键词： Indexing Text categorization Information retrieval Machine learning Intelligent networks computer networks Information entropy Classification tree analysis Frequency Laboratories

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Study of Multi media Streams Dynamic Rate Control Based on Fuzzy Adaptive PID

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The Journal of China Universities of Posts and Telecommunications 2005年第4期12卷 75-79页

作者： SUN Yan-fei ZHANG Shun-yi SHI Jin WANG Jiang-tao Jiangsu Province Engineering Research Center of Telecommunication dr Network Technology Nanjing University of Posts and TelecommunicationsNanjing 210003 P.y. China State Key Laboratory of Novel Software Technology Nanjing University Nanjing 210093 P. R. China Department of Computer Science and Technology Nanjing University of Posts and Telecommunications Nanjing 210003 P. R. China

A Multimedia streams dynamic rate control algorithm based on Fuzzy adaptive PID （MFPID） has been proposed to implement multimedia streams＇ end sending rate on-line self-regulating and smoothing, and to track system resources in time, so that it can avoid system＇s regulating oscillation and guarantee system＇s stability. And, some work has been done to analyze adaptive session model of multimedia streams, to implement future available bandwidth estimation of IP network, to achieve PID parameters＇ on-line self-tuning by fuzzy controlling. Simulation validated the theoretical results of MFPID.

关键词： multimedia transmission dynamic end sending rate PID adaptive regulating fuzzy parameter self-tuning

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Study of Secure Complicated Information System Architecture Model

Study of Secure Complicated Information System Architecture ...

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International Conference on Semantics, Knowledge and Grid (SKG)

作者： Kun Wang Ruidan Su Zengxin Li Zhen Cai Lihua Zhou Key Laboratory of Computer Network and Information Security of the Ministry of Education Xidian University Xi'an China National Info Security Engineering and Technology Research Center Beijing China

Complicated information system (CIS) contains many inhomogeneous applications which require security, interoperability, extensibility. The paper presents a secure CIS architecture model to conduct the construction or reconstruction of CIS. Using layered method, it divides CIS into modules and reduces system complexity. Web service technology is widely adopted in layers to fulfill interoperability and extensibility. It uses encryption support layer, security protection and reliability support layer to guarantee system security and stability in different aspects. It uses system management layer to make CIS administrable. It suits highly security-critical environment such as government and bank. Been properly simplified, it can be applied to relative simple information system too.

关键词： Information systems Information security Computational Intelligence Society Communication system security National security Electronic government Operating systems Protocols Communication standards computer security

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A Mathematical Approach to Disaster Recovery Planning

A Mathematical Approach to Disaster Recovery Planning

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International Conference on Semantics, Knowledge and Grid (SKG)

作者： Kun Wang Zhonghai Yin Feng Yuan Lihua Zhou Key Laboratory of Computer Network and Information Security of the Ministry of Education Xidian University Xi'an China National Info Security Engineering and Technology Research Center Beijing China

It is crucial for highly security-critical information systems to accurately control the disaster recovery activities. Using optimization theory, we present a disaster recovery planning mathematical model. The model uses mathematical method to express diverse entities in information and disaster recovery system such as applications, facilities, resources, sub disaster recovery plans, budget, etc. It classifies various resources according to their utilization and payment, and identifies the significance of applications and the conflicts among sub disaster recovery plans. Through expressing relationships among applications, facilities, resources and sub plans, this model selects the best set of sub plans. This model has less subjective parameter and can evaluate disaster recovery planning objectively and quantitatively.

关键词： Mathematical model Testing Information security Information systems Control systems Risk management technology planning Laboratories computer networks computer science education

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A Disaster Recovery System Model in an E-government System

A Disaster Recovery System Model in an E-government System

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IEEE International Conference on Parallel and Distributed Computing, Applications and Technologies (PDCAT)

作者： Kun Wang Lihua Zhou Zhen Cai Zengxin Li Key Laboratory of Computer Network and Information Security of the Ministry of Education Xidian University Xi'an China National Info Security Engineering and Technology Research Center Beijing China

We present a Robust Disaster Recovery System Model (RDRSM) for highly security-critical systems to realize continuous service. Through strengthening safe communication ability, RDRSM guarantees secure and reliable command on disaster recovery. It uses selfsupervision function to monitor the integrality and security of system itself. Through GIS, this model makes disaster recovery system easier to use, manage and maintain. RDRSM possesses features of security, robustness and controllability and can be applied to environments such as e-government and bank. This model successfully conducted the construction of an important e-government disaster recovery system, which verified its feasibility and the significance of its components, such as disaster recovery planning, system supervision and robust communication support.

关键词： Electronic government Robustness Communication system security Stability Disaster management computer networks Information security Monitoring Geographic Information Systems Protection

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AN IMPROVED BICLUSTERING ALGORITHM AND ITS APPLICATION TO GENE EXPRESSION SPECTRUM ANALYSIS

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Genomics, Proteomics & Bioinformatics 2005年第3期3卷 189-193页

作者： Hua Qu Liu-Pu Wang Yan-Chun Liang Chun-Guo Wu College of Software Key Laboratory of Symbol Computation and Knowledge Engineering of the Ministry of Education Jilin University Changchun 130012 China Guangzhou Institute of China Telecom Guangzhou 510630 China College of Computer Science and Technology Key Laboratory of Symbol Computation and Knowledge Engineering of Ministry of Education Jilin University Changchun 130012 China Key Laboratory of Information Science and Engineering of the Ministry of Railway/Key Laboratory of Advanced Information Science and Network Technology of Beijing Beijing Jiaotong University Beijing 100044 China.

Cheng and Church algorithm is an important approach in biclustering algorithms. In this paper, the process of the extended space in the second stage of Cheng and Church algorithm is improved and the selections of two important parameters are discussed. The results of the improved algorithm used in the gene expression spectrum analysis show that, compared with Cheng and Church algorithm, the quality of clustering results is enhanced obviously, the mining expression models are better, and the data possess a strong consistency with fluctuation on the condition while the computational time does not increase significantly.

关键词： biclustering algorithm gene expression pedigree analysis Cheng and Church algorithm

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Authenticated public-key encryption based on elliptic curve

Authenticated public-key encryption based on elliptic curve

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International Conference on Embedded Software and Systems

作者： Yiliang Han Xiaoyuan Yang Yupu Hu Key Laboratory of Network and Information Security A.P.FDepartment of Electronic Technology Engineering College of A. P. F Xi'an China College of Computer Science Xidian University Xi'an China

An efficient scheme so called authenticated public key encryption that performs signature and encryption simultaneously is designed. The scheme is the first scheme that based on the standardized signature algorithm ECDSA and achieves both privacy and authenticity in the method of ECDLP which is the most practical cryptographic primitive in the future. The scheme saves 78%-82% computation costs in all. It also saves 14% storage costs for current security parameters and 9% storage costs for high level security in average. The saving is significant potentially, especially in power restricted applications such as embedded systems and mobile computing. Arguments show that the scheme is secure at present. Compared with RFC1421 and existed results, the scheme for multiple users also discussed.

关键词： Public key Elliptic curves Secure storage Costs Power system security Privacy Public key cryptography Elliptic curve cryptography Computational efficiency Embedded system

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Incident response management system based on alert life circle

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Dalian Ligong Daxue Xuebao/Journal of Dalian University of technology 2005年第SUPPL.期45卷 S157-S160页

作者： Gong, Jian Li, Jie Computer Network Technology Key Laboratory of Jiangsu Nanjing 210096 China Dept. of Computer Science and Engineering Southeast University Nanjing 210096 China

Based on the existing security incident response working scheme, a novel incident response management model is proposed, based on the concept of alert life circle. An implementation structure of this new model is also given. The system can manage and control the incident response process according to its current state in its life circle, and adjust the response actions as the environment changes. This model can provide an efficient response management and is beneficial to the implementation of automatic response as well.

关键词： Information management

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Multicast access control based on SIP

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Dalian Ligong Daxue Xuebao/Journal of Dalian University of technology 2005年第SUPPL.期45卷 S214-S218页

作者： Cao, Zheng Wang, Jian Jiangsu Province Key Laboratory of Network Technology Nanjing 210096 China Department of Computer Science and Engineering Southeast University Nanjing 210096 China

Deployment of multicast service requires multicast security. Access control is one of the most important parts of multicast security. A way of access control based on session initiation protocol (SIP) is proposed. By the mechanism of authorization and S/MIME supported by SIP, multicast users, authenticating, authorizing and secure communicating are acquired. This method has the advantages of high-degree security stable operation and good performance of expansion, which can easily be transferred to run in IPV6.

关键词： Internet

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