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ISECS International Colloquium on Computing, Communication, Control, and Management, CCCM

作者： Junting Cheng Xiangli Meng Can Zhao Yusheng Shi State Key Laboratory of Plastic Forming Simulation and Die & Mould Technology Huazhong University of Science and Technology Wuhan Hubei China Institute of Mechanical Engineering Heilongjiang University of Science and Technology Harbin Heilongjiang China

A measurement technique about coordinate of space points based on digital close range photogrammetry was investigated. Two kinds of reference points were placed on the object surface to determinate their spatial position by identifying and detecting. Several key techniques, including code and decode, calibration of the camera, camera orientating technique, high precise image processing algorithm were also studied. The precision of the algorithm was tested and a sample was provided. The result indicated that the testing scope is enlarged and the demand for the measurement of 3D object, especially of the big object is satisfied.

关键词： Cameras Calibration Equations Three dimensional displays Accuracy Transmission line matrix methods Pixel

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Combining Immune with Ant Colony Algorithm for Geometric Constraint Solving

Combining Immune with Ant Colony Algorithm for Geometric Con...

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International Workshop on Knowledge Discovery and Data Mining (WKDD)

作者： Hua Yuan Yi Li Wenhui Li Kong Zhao Duo Wang Rongqin Yi Key Laboratory of Symbol Computation and Knowledge Engineering of the Ministry of Education College of Computer Science and Technology Jilin University Changchun China School of Computer Science & Engineering Changchun University of Technology China Suzhou Top Institute of Information Technology Suzhou China

Geometric constraint problem can be transformed to an optimization problem which the objective function and constraints are non-convex functions. In this paper an evolutionary algorithm based on ant colony optimization algorithm and the immune system model is proposed to provide solution to the geometric constraints problem. In the new algorithm, affinity calculation process and pheromone trail lying is embedded to maintain diversity and carry out the global search and the local search in many directions rather than one direction around the same individual simultaneously. This new algorithm different with current optimization methods in that it gets the good solution by excluding bad solutions. The experimental results reported here will shed more light into how affects the hybrid algorithm's search power in solving geometric constraint problem.

关键词： Immune system Ant colony optimization Nonlinear equations Knowledge engineering Computer science Educational technology Evolutionary computation Data mining Laboratories Computer science education

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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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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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Military task programming based on finite state machine (FSM) decision-making model

Military task programming based on finite state machine (FSM...

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International Conference on System simulation and Scientific Computing, ICSC

作者： Shidong Ma Guanghong Gong Liang Han Xiao Song The Aviation Key Laboratory for Advanced Simulation Technology Beijing Aeronautics and Astronautics University Beijing China The School of Automation Science and Electrical Engineering Beijing Aeronautics and Astronautics University Beijing China

Military task programming is an important foundation in military warfare simulations. Presently, scenarios in joint military warfare are built not so good to meet the requirement of aggregate-level warfare simulations and the requirement of intelligent decision in real time simulations. A method based on FSM model of aggregate-level military warfare decision-making and vehicle-level action decision-making is proposed in this paper. The programming process of joint military warfare with decision-making functions can be realized through the programming of these two levels, and the dynamic decision-making and execution of mission can be completed successfully.

关键词： Automata Decision making Military computing Dynamic programming computational modeling Machine intelligence Functional programming Vehicle dynamics Computer simulation Space missions

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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...

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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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Convergence properties of E-optimality algorithms for Many objective Optimization Problems

Convergence properties of E-optimality algorithms for Many o...

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Congress on Evolutionary computation

作者： Zhuo Kang Lishan Kang Changhe Li Yuping Chen Minzhong Liu Computation Center Wuhan University of China China School of Computer Science China University of Geoscience China State key Laboratory of Software Engineering Wuhan University of China China School of Computer Science Wuhan University of China China

In the paper, for many-objective optimization problems, the authors pointed out that the Pareto Optimality is unfair, unreasonable and imperfect for Many-objective Optimization Problems (MOPs) underlying the hypothesis that all objectives have equal importance and propose a new evolutionary decision theory. The key contribution is the discovery of the new definition of optimality called E-optimality for MOP that is based on a new conception, so called E-dominance, which not only considers the difference of the number of superior and inferior objectives between two feasible solutions, but also considers the values of improved objective functions underlying the hypothesis that all objectives in the problem have equal importance. Two new evolutionary algorithms for E-optimal solutions are proposed. Because the new relation < E of E-dominance is not transitive, so a new way must be found for consideration of convergence properties of algorithms. A Boolean function better used as a select strategy is defined. The convergence theorems of the new evolutionary algorithms are proved. Some numerical experiments show that the new evolutionary decision theory is better than Pareto decision theory for many-objective function optimization problems.

关键词： Evolutionary computation Optimization Boolean functions

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合成有机化合物在天然和人工水环境的生物降解

合成有机化合物在天然和人工水环境的生物降解

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微生物实用技术生态环境应用学术研讨会

作者：王建龙钱易 State Key Joint Laboratory of Environment Simulation and Pollution Control Department of Environmental Science and Engineering Tsinghua University

在活性污泥废水处理系统中,合成有机化合物(synthetic organic compounds,简称SOCs)的去除受生物降解、吸附、挥发等因素的影响。在完全混合式反应器中,其出水浓度由降解动力学参数决定,挥发和吸附受污泥浓度的影响。因此,生物降解动力... 详细信息

在活性污泥废水处理系统中,合成有机化合物(synthetic organic compounds,简称SOCs)的去除受生物降解、吸附、挥发等因素的影响。在完全混合式反应器中,其出水浓度由降解动力学参数决定,挥发和吸附受污泥浓度的影响。因此,生物降解动力学可用来定量描述这类化合物的生物降解特性。本文综述了合成有机化合物在天然和人工水环境中的生物降解特性及各种影响因素。

关键词：合成有机化合物活性污泥系统生物降解水环境

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Interpretation of experimental IR spectra of (z)-4-(2-(acryloyloxy)ethoxy)- 4-oxobut-2-enoic acid and its polymers

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E-Polymers 2008年

作者： Chen, Song Xiaoyu, Li College of Materials Science and Engineering Beijing University of Chemical Technology No. 15 Beisanhuan East Road Beijing 100029 China Division of Molecular and Materials Simulation Key Laboratory for Nanomaterials Ministry of Education No. 15 Beisanhuan East Road Beijing 100029 China

The solid phase FTIR spectra of (z)-4-(2-(acryloyloxy)ethoxy)-4-oxobut2- enoic acid (cis-AEOEA) and its polymers have been recorded in the regions 3500-500 cm-1, respectively. The IR spectra of cis-AEOEA was interpreted with the aid of normal coordinated analysis following full structure optimization and force field calculation based on density functional theory (DFT). Standard scaling factor was used to afford better correspondence between the calculated and experimental wavenumbers for the separation and unambiguous identification of observed IR spectra of cis-AEOEA, especially for C = C double bonds. The characteristic absorption bands of C = C are used for identifying the kind of C = C double bonds in cis-AEOEA's polymers.

关键词： Density functional theory

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

A New Authentication Protocol for Wireless Communication Net...

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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

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