检索结果-内蒙古大学图书馆

2008 International Conference on Machine Learning and Cybernetics(2008机器学习与控制论国际会议)

作者： HE LIU DA-YOU LIU XIAO-HU SHI YING GAO College of Computer Science and Technology Jilin University Changchun 130012 China Key Laboratory for Symbolic Computation and Knowledge Engineering of Ministry of Education Changchun 130012 China

Attribute discretization is one of the key issues for the Rough Set theory. First, a method is proposed to compute an initial cut points set. The indistinguishable relation of decision tables did not change, and the number of elements in the initial cut points set was reduced. Then, the cut point information entropy was defined to measure the importance of a cut point. Finally, an attribute discretization algorithm based on the Rough Set and information entropy was proposed. The consistence of decision tables did not change, and the mixed decision table was considered, which contains continuous and discrete attributes. The experimental results show that this algorithm is effective and is competent for processing the large-scale datasets.

关键词： Attribute Discretization Rough Set Information Entropy Cut Point

来源：评论

学校读者我要写书评

暂无评论

Dynamic Policy Updating Based on One-Point Coverage Random Sets Theory

Dynamic Policy Updating Based on One-Point Coverage Random S...

引用

International Workshop on knowledge Discovery and Data Mining (WKDD)

作者： Wei Da Yan-heng Liu Lian-deng Li Xue-jie Liu Hai-yan Hu Key Laboratory of Symbolic Computation and Knowledge Engineering of Ministry of Education Jilin University Changchun Jilin China College of Computer Science and Technology Jilin University Changchun Jilin China

Aiming at the dynamic policy trigger problem in policy based network management, this thesis first introduces the uncertain information generated by one-point coverage random sets theory and also the unified framework of fuzzy information. On the basis of which, according to the feature of policy based network management, a model used to update the predicted information using present known information, experience, and knowledge is designed. At the same time, this thesis put forward that, take the semblance of policy as constant probability in product space conditional event algebra, so as to execute information fusion of multiple sets of related policy. In the end, compared with the policy based inference system and then analyze the result.

关键词： Set theory Resource management Fuzzy set theory Technology management Fuzzy sets knowledge management Algebra Environmental management Probability Probabilistic logic

来源：评论

学校读者我要写书评

暂无评论

Notice of Retraction: Experimental Research on a New Authentication Protocol for Wireless Communication Network Based on WiMAX

Notice of Retraction: Experimental Research on a New Authent...

引用

International Conference on Wireless Communications, Networking and Mobile computing (WiCom)

作者： Ruixue Li Zhiyi Fang Peng Xu Wei Xiao Wei Wang College of Computer Science and Technology Key Laboratory of Symbolic Computation and Knowledge Engineering of Ministry of Education Jilin University Changchun China School of Computer Northeast Normal University Changchun China

This article has been retracted by the publisher.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Research on Hiberarchy Trusted Network Based on the Grade Division

Research on Hiberarchy Trusted Network Based on the Grade Di...

引用

2008 3rd International Conference on Intelligent System and knowledge engineering(第三届智能系统与知识工程国际会议)(ISKE 2008)

作者： Jian Wang Yanheng Liu Jing Zhang Jianqi Zhu Tianzhe Dong College of Computer Science and Technology Jilin UniversityChangchunJilin130012China Key Laboratory of Symbolic Computation and Knowledge Engineering of Ministry of Education Jilin UniversityChangchunJilin130012China

A framework of hiberarchy trusted network basedon the grade division was put forward,and thepartition rules of trusted attributes as well as themethods of grade division were explained in ***,the potential applications of this frameworkin trusted network were discussed,and the accessprocedure of terminals in hiberarchy trusted networkwas given based on the existing research *** show that by the proposed framework,notonly the safety and reliability of network can beensured,but also the flexibility of ways to accessnetwork is strengthened,and that the framework canprovide supports for interoperability of differentequipment suppliers.

关键词： knowledge engineering Information security Intelligent systems Intelligent networks Network servers Communication system security Data security Access protocols Routing Transport protocols

来源：评论

学校读者我要写书评

暂无评论

Modeling Cascading Failures in Congested Internet

Modeling Cascading Failures in Congested Internet

引用

The 9th International Conference for Young Computer Scientists(第九届国际青年计算机大会)

作者： Jian Wang Yanheng Liu Xin Sun Yu Jiao College of Computer Science and Technology Jilin University Changchun Jilin 130012 China Key Laboratory of Symbolic Computation and Knowledge Engineering of Ministry of Education Jilin University Changchun Jilin 130012 China

Internet is a complex network with the characteristic of self-organized criticality. The cascading dynamics of Internet are presented and two reasons are pointed out, which may cause cascading failures. Different from betweenness centrality, a congestion function to represent the extent of congestion is proposed. By introducing the concept of "delay time", the correlation between permanent removing and non-removing is built. And a new evaluation function of network efficiency based on congestion function is given in order to measure the damage of cascading failures. Moreover some effects of network structure and size, delay time on congestion propagation are also investigated, and cascading process composed of three phases and some factors affecting cascade propagation are uncovered.

关键词： Internet complex network cascading failures propagation model network topology.

来源：评论

学校读者我要写书评

暂无评论

The Application of PSC-CEA in the Process of Resource Allocation Dynamic Policy Triggering during the Switchover of Mobile IP

The Application of PSC-CEA in the Process of Resource All...

引用

International Conference on MultiMedia and Information Technology, MMIT

作者： Wei Da Liu Yan-heng Yu Xue-Gang Hao Jian-ying Li Lian-deng Key Laboratory of Symbolic Computation and Knowledge Engineering of Ministry of Education Jilin University Jilin China Jilin University Changchun Jilin CN College of Computer Science and Technology Jilin University China

This paper demonstrates the necessity of the use of PSC-CEA for dynamic policy triggering in the process of mobile IP switching; in the mean time, according to the characteristics of policy based network management, propose a dynamic policy trigger model, and designs a mechanism which is used to update dynamic policy according to known information, experience and knowledge to satisfy the QoS of mobile services and use current network resource sufficiently.

关键词： Resource management Quality of service Space technology Mobile computing Extraterrestrial measurements Technology management Switches Algebra Technology forecasting Information technology

来源：评论

学校读者我要写书评

暂无评论

An improved particle swarm optimization algorithm for flowshop scheduling problem

An improved particle swarm optimization algorithm for flowsh...

引用

International Conference on Information and Automation (ICIA)

作者： Bo Li Changsheng Zhang Ge Bai Erliang Zhang a. The computing center of Changchun Institute of Technology b. Key Laboratory of Symbol Computation and Knowledge Engineering of the Ministry of Education c. Aviation university of air force Changchun China

The flowshop scheduling problem has been widely studied in the literature and many techniques have been applied to it, but few algorithms have been proposed to solve it using particle swarm optimization algorithm (PSO) based algorithm. In this paper, an improved PSO algorithm (IPSO) based on the ldquoall differentrdquo constraint is proposed to solve the flowshop scheduling problem with the objective of minimizing makespan. It combines the particle swarm optimization algorithm with genetic operators together effectively. When a particle is going to stagnates, the mutation operator is used to search its neighborhood. The proposed algorithm is tested on different scale benchmarks and compared with the recently proposed efficient algorithms. The results show that both the solution quality and the convergent speed of the IPSO algorithm precede the other two recently proposed algorithms. It can be used to solve large scale flowshop scheduling problem effectively.

关键词：

来源：评论

学校读者我要写书评

暂无评论

New model and realization of trusted remediation network

Jiefangjun Ligong Daxue Xuebao/Journal of PLA University of ...

引用

Jiefangjun Ligong Daxue Xuebao/Journal of PLA University of Science and Technology (Natural Science Edition) 2008年第5期9卷 470-474页

作者： Wang, Jian Liu, Yan-Heng Zhang, Ying-Ge Mei, Fang College of Computer Science and Technology Jilin University Changchun 130012 China Key Laboratory of Symbolic Computation and Knowledge Engineering Jilin University Changchun 130012 China

A new and feasible trusted remediation model was built with its function and work flow explained in detail. Moreover, the communication and authentication process of remediation model were discussed. Simulation results show that the proposed model can not only ensure the safety and reliability of network, but also provide remediation services for those terminal users who fail to meet the security policy demand.

关键词： Pollution

来源：评论

学校读者我要写书评

暂无评论

A New Authentication Protocol for Wireless Communication Network Based on IEEE802.16

A New Authentication Protocol for Wireless Communication Net...

引用

International Symposium on Parallel and Distributed Processing with Applications, ISPA

作者： Ruixue Li Zhiyi Fang Wei Cao Yumei Yin Peng Xu College of Computer Science and Technology Jilin University Key Laboratory of Symbolic Computation and Knowledge Engineering of Ministry of Education Changchun China College of Information Technology Liaodong University Dandong China Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy and Sciences Changchun China

After analyzing the specific security requirements of the wireless communication network based on IEEE802.16, a series of key issues about security methods and techniques were researched. A new authentication protocol for wireless mobile environment was proposed and designed. Then, its security was analyzed from the angle of technical realization and formal analysis to verify whether the original safety goals were achieved. Especially, formal analysis was mostly done. Finally, system testing was also carried out and the results were analyzed to verify function and performance of the new protocol.

关键词： Authentication Wireless application protocol Wireless communication Communication system security Information security Data security Safety Access protocols Clocks Synchronization

来源：评论

学校读者我要写书评

暂无评论

Collaborative filtering recommendation algorithm combining probabilistic relational models and user grade

引用

Jisuanji Yanjiu yu Fazhan/Computer Research and Development 2008年第9期45卷 1463-1469页

作者： Gao, Ying Qi, Hong Liu, Jie Liu, Dayou College of Computer Science and Technology Jilin University Changchun 130012 China Key Laboratory of Symbolic Computation and Knowledge Engineering Jilin University Changchun 130012 China

Collaborative filtering is one of successful technologies for building recommender systems. Unfortunately, it suffers from sparsity and scalability problems. To address these problems, a collaborative filtering recommendation algorithm combining probabilistic relational models and user grade (PRM-UG-CF) is presented. PRM-UG-CF has primary two parts. First, a user grade function is defined, and user grade based collaborative filtering method is used, which can find neighbors for the target user only in his near grade, and the number of candidate neighbors can be controlled by a parameter, so recommendation efficiency is increased and it solves the scalability problem. Second, in order to use various kinds of information for recommendation, user grade based collaborative filtering method is combined with probabilistic relational models (PRM), thus it can integrate user information, item information and user-item rating data, and use adaptive strategies for different grade users, so recommendation quality is improved and it solves the sparsity problem. The experimental results on MovieLens data set show that the algorithm PRM-UG-CF has higher recommendation quality than a pure PRM-based or a pure collaborative filtering approach, and it also has much higher recommendation efficiency than a pure collaborative filtering approach.

关键词： Collaborative filtering

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：