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检索条件"机构=A Key Laboratory of Symbolic Computation and Knowledge Engineering"

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Object Localization Based on Global Structure Constraint Model and Optimal Algorithm

Object Localization Based on Global Structure Constraint Mod...

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International Conference on Innovative Computing, Information and Control (ICICIC)

作者： Miao Liu Dongwei Guo Jie Ma Xiaohua Liu Dan Li Chunguang Zhou College of Computer Science and Technology Jilin University Changchun China Key Laboratory of Symbolic Computation and Knowledge Engineering of Ministry of Education Jilin University Changchun China

ISBN: (纸本)9781424431977;9780769531618

We present a novel object localization approach based on the global structure constraint model (GSC) and optimal algorithm. In GSC, Objects are described as constellations of points satisfied with their specific global structure constraints. The spatial relations among all the patches having stable color information and their representative color information around patches are encoded. Then, the searching algorithm, i.e. genetic algorithm, is used to locate target objects in images by finding out the exactly matched position. In the experiment, we tested the approach on a collection of human face images and the results demonstrated the approach is simple, effective and efficient.

关键词： computational modeling Image color analysis Face Shape Computer vision Artificial neural networks Image resolution

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AN ATTRIBUTE DISCRETIZATION ALGORITHM BASED ON ROUGH SET AND INFORMATION ENTROPY

AN ATTRIBUTE DISCRETIZATION ALGORITHM BASED ON ROUGH SET AND...

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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

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Feature Recognition Based on Neural Network

Feature Recognition Based on Neural Network

引用

International Conference on Computer Science and Information Technology (CSIT)

作者： Rongqing Yi Wenhui Li Duo Wang Hua Yuan Key laboratory of Symbolic Computing and Knowledge Engineering of Ministry of Education Jilin University Changchun China

An efficient methodology for recognizing features is presented. The part information is taken from the B-rep solid date library then broken down into sub-graph. Once the sub-graphs are generated, they are first checked to see whether they match with the predefined feature library. If so, a feature vector is assigned to them. Otherwise, base faces are obtained as heuristic information and used to restore missing faces, meanwhile, update the sub-graphs. The sub-graphs are transformed into vectors, and these vectors are presented to the neural network which classifies them into feature classes.

关键词： Artificial neural networks Libraries Solids Feature extraction Solid modeling Pattern recognition Cognition

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

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

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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

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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...

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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.

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Research on Hiberarchy Trusted Network Based on the Grade Division

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

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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

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Modeling Cascading Failures in Congested Internet

Modeling Cascading Failures in Congested Internet

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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.

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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

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The Application of Support Vector Machine to Operon Prediction

The Application of Support Vector Machine to Operon Predicti...

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International Conference on Future Generation Communication and Networking (FGCN)

作者： Xiumei Wang Wei Du Yan Wang Chen Zhang Chunguang Zhou Shuqin Wang Yanchun Liang College of Computer Science and Technology Key Laboratory of Symbol Computation and Knowledge Engineering of the Ministry of Education Jilin University Changchun China

ISBN: (纸本)9781424440085

In this paper, we apply the least-square support vector machine (LS-SVM) to operon prediction of Escherichia coli (***), with different combinations of intergenic distance, gene expression data, and phylogenetic profile. Experimental results demonstrate that the WO pairs tend to have shorter intergenic distances, higher correlation coefficient and much stronger relation of co-envoled between phylogenetic profiles. Also, we dealt with the data sets extracted from WOs¿ and TUBs¿, processed the intergenic distances with log-energy entropy, de-noised the Pearson correlation coefficients of two genes expression data with wavelet transform, and computed the Hamming distances of two phylogenetic profiles. Then we trained LS-SVM using part of the data sets and tested the trained classifier model using the rest data sets. It shows that different combinations of features could affect the prediction results. When the combination of intergenic distance, gene expression data and phylogenetic profile is taken as the input of LS-SVM in the linear kernel type, good results can be obtained, of which the accuracy, sensitivity and specificity are 92.34%, 93.54%, and 90.73%, respectively.

关键词： Support vector machines Phylogeny Gene expression Data mining Entropy Genetic expression Wavelet transforms Testing Kernel Sensitivity and specificity

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Copyright Protection Using A computational Watermarking Scheme

引用

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

作者： Qi Jiang Dongfeng Han Yi Li Wenhui Li Key Laboratory of Symbol Computation and Knowledge Engineering of the Ministry of Education College of Computer Science and Technology Jilin University Changchun China

In this paper an efficient copyright protection watermarking algorithm is proposed. By embedding orthogonal vector into the wavelet-tree structure of the host image, we get the watermarked image. At the same time human vision system is considered to get perceptual results. We design an elaborate function for blind watermarking scheme. This function can dynamically determine the embedding position. The theory and experimental results show that our method successfully survives image processing operation, noise adding, the JPEG lossy compression and image cropping. Especially, the scheme is robust towards image sharpening and image enhancement.

关键词： copyright protection watermark wavelet tree

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