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13th International Conference on systems simulation, AsiaSim 2013

作者： Fang, Zhao Tao, Zhang Xin, Wei Jun, Zhao Xin College of Automation Science and Electrical Engineering Beijing University of Aeronautics and Astronautics Beijing 100191 China Science and Technology on Complex Simulation Land Systems Simulation Laboratory Beijing 100072 China Naval Academy of Armament 100036 China

ISBN: (纸本)9783642450365

Pitched at problems needing to be solved for evaluating the digitized forcespi0215es command & control (DF C2) system, this paper proposes the major contents and processes for evaluating the C2 systemspi0215es effectiveness based on simulation experimentation, lays down the Measures of Efficiencies(MoEs) system of effectiveness evaluation (EE) for the C2 system, and analyzes, through the design of experiment samples and the planning of the evaluation process, how to use the simulation-experiment approaches of comparison and statistics to conduct effectiveness evaluation, contribution analysis and optimization analysis of the C2 system. © Springer-Verlag Berlin Heidelberg 2013.

关键词： Design of experiments

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Research on information capability based high-performance information sharing in the simulation grid

Research on information capability based high-performance in...

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2010 International Conference on Computer Modeling and simulation, ICCMS 2010

作者： Zhang, Ying-Chao Zhang, Jing Chen, Xin Yu, Qin-Zhang Zhang, Hao Beijing Institute of System Engineering National Key Laboratory of Science and Technology on Complex Systems Simulation Beijing China

ISBN: (纸本)9780769539416

For the purpose of achieving high-performance information sharing in the simulation grid, an information capability-based Three Phase High-performance Information Sharing Approach (TPHPISA for short) is advanced. The main idea of TPHPISA is selecting those information sources with highest information capability and executing the best query plan. To illustrate how TPHPISA works, an application example of implementing high-performance information sharing in the stock market simulation grid is thoroughly analyzed. At last, the searching efficiency and accuracy of TPHPISA are demonstrated through comparing with other similar method. © 2010 IEEE.

关键词： Information analysis

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Modeling and simulation of international politics evolution in crisis

Modeling and simulation of international politics evolution ...

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2010 International Conference on Computer Modeling and simulation, ICCMS 2010

作者： Yu, Qin-Zhang Zhang, Jing Zhang, Ying-Chao Beijing Institute of System Engineering National Key Laboratory of Science and Technology on Complex Systems Simulation Beijing China

ISBN: (纸本)9780769539416

Under the guidance of the theories of complex Adaptive System and Artificial Societies, modeling and simulation of international politics evolution in crisis was studied. The Model of International Politics Evolution (IPEM) in crisis based on Agent was built. The function and architecture of IPEM were introduced. Individual Agent , including Nation Agent, International Organization Agent and Environment Agent, was described in detail. A simulation experiment was executed to prove the effectiveness of the method proposed in the paper. © 2010 IEEE.

关键词： Adaptive systems

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Research on multi-agent based C4ISR effectiveness simulation and evaluation

Research on multi-agent based C4ISR effectiveness simulation...

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2010 International Conference on Computer Modeling and simulation, ICCMS 2010

作者： Zhang, Ying-Chao Feng, Ye Yu, Qin-Zhang Xin, Chen Beijing Institute of System Engineering National Key Laboratory of Science and Technology on Complex Systems Simulation Beijing China

ISBN: (纸本)9780769539416

The effectiveness evaluation of C4ISR is playing a more and more important role in its designing, developing and using. According to its characters, such as complexity and intelligence, the traditional evaluation methods and systems are not feasible and effective enough. In this paper, a multiagent based simulation and evaluation framework of C4ISR is advanced, which includes the architecture and the working procedure. The agent-based simulation model of C4ISR is put forward, according to which the C2 Agent, Armament Agent and the Evaluation Agent are founded. The interaction model between each agent is also designed. At final, based on the Swarm, a multi-agent based C4ISR effectiveness simulation and evaluation prototype is developed, through which NATO C2 effectiveness evaluation is thoroughly analyzed. © 2010 IEEE.

关键词： Multi agent systems

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Unmanned Marine Emergency Response System technology

Unmanned Marine Emergency Response System Technology

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2019 IEEE International Conference on Unmanned systems, ICUS 2019

作者： Zhang, Hongli Song, Yuanyun Chen, Chao Chu, Xianying Beijing Aerospace Technology Research Institute Beijing China Aviation Systems Simulation Laboratory Science and Technology on Complex Beijing China

ISBN: (纸本)9781728137926

With the global climate change, the frequency and destructiveness of emergencies in the coastal areas worldwide have increased in recent years. The rapid response of the existing equipment and means is insufficient. It is urgent to improve response speed for marine research, disaster investigation, marine rescue, maritime surveillance and other maritime emergencies. With the development of high-speed civil aircraft technology, the high-speed UAV platform can form an unmanned emergency response system, taking advantage of fast arrival, wide coverage and flexibility. The simulation shows that the unmanned emergency system has outstanding advantages compared with the existing subsonic UAV, and can effectively execute emergency marine missions. © 2019 IEEE.

关键词： Unmanned aerial vehicles (UAV)

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Relationship graph learning network for visual relationship detection 2

Relationship graph learning network for visual relationship ...

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2nd ACM International Conference on Multimedia in Asia, MMAsia 2020

作者： Li, Yanan Yu, Jun Zhan, Yibing Chen, Zhi Key Laboratory of Complex Systems Modeling and Simulation School of Computer Science and Technology Hangzhou Dianzi University Hangzhou China

ISBN: (纸本)9781450383080

Visual relationship detection aims to predict the relationships between detected object pairs. It is well believed that the correlations between image components (i.e., objects and relationships between objects) are significant considerations when predicting objects' relationships. However, most current visual relationship detection methods only exploited the correlations among objects, and the correlations among objects' relationships remained underexplored. This paper proposes a relationship graph learning network (RGLN) to explore the correlations among objects' relationships for visual relationship detection. Specifically, RGLN obtains image objects using an object detector, and then, every pair of objects constitutes a relationship proposal. All relationship proposals construct a relationship graph, in which the proposals are treated as nodes. Accordingly, RGLN designs bi-stream graph attention subnetworks to detect relationship proposals, in which one graph attention subnetwork analyzes correlations among relationships based on visual and spatial information, and the other analyzes correlations based on semantic and spatial information. Besides, RGLN exploits a relationship selection subnetwork to ignore redundant information of object pairs with no relationships. We conduct extensive experiments on two public datasets: the VRD and the VG datasets. The experimental results compared with the state-of-the-art demonstrate the competitiveness of RGLN. © 2021 ACM.

关键词： Semantics

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Research on rehearsal model of complex system based on Petri Nets

Research on rehearsal model of complex system based on Petri...

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IASTED International Conference on Applied simulation and Modelling, ASM 2011

作者： Ye, Feng Lan, Guo-Xing Cai, Ye-Quan Zhang, Ying-Chao Science and Technology on Complex Systems Simulation Laboratory Post Box. 9702#19 Beijing 100101 China

ISBN: (纸本)9780889868939

The typical operation flow of complex system has analyzed in this paper. The rehearsal model of the complex system based on the principle of Petri Nets has proposed, and illustrated by the case of OODA. The Petri Nets demonstration prototype under a typical scenario of complex system has built. The method of complex system modeling based on Petri Nets is a possible approach to fit in with the needs of constructing a typical rehearsal system of the complex system by existing simulation models (subsystems) in a short time. It meets the requirements of the demonstration research and evaluation mission for the complex system, which carries out in a short-term action cycle and accomplishes the mission in high efficiency.

关键词： Petri nets

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Research on system of systems simulation optimization

Research on system of systems simulation optimization

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IASTED International Conference on Applied simulation and Modelling, ASM 2011

作者： Lan, Guo-Xing Ye, Feng Science and Technology on Complex Systems Simulation Laboratory Post Box. 9702#19 Beijing 100101 China

ISBN: (纸本)9780889868939

Optimization is one of the most important research contents of System of systems (SoS), and computer simulation technology is an effective means to resolving optimization problem. This paper makes further exploration of SoS description and optimization problem, simulation optimization and its development direction. The multilayer optimization to resolving optimization problem of system and hybrid optimization algorithm based on sensitivity analysis and genetic algorithm has proposed. They are used to offer a technological support for SoS optimization problem.

关键词： Sensitivity analysis

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A grain level model for deformation and failure of ultrafine-grained tungsten

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science China(Technological sciences) 2019年第5期62卷 755-761页

作者： REN Ke CHEN LiRong CHENG YangYang WANG JianXiang DUAN HuiLing State Key Laboratory for Turbulence and Complex Systems Department of Mechanics and Engineering Science College of EngineeringPeking University Key Laboratory of High Energy Density Physics Simulation Center of Applied Physics and Technology BIC-ESAT and IFSA Collaborative Innovation Center of MoE Peking University

Ultrafine-grained tungsten(UFG W) produced by severe plastic deformation technology has many potential applications due to its high strength and ductility. To reveal the mechanism for the high ductility of UFG W, the deformation and failure behaviors of coarse-grained tungsten(CG W) and UFG W have been compared based on a three-dimensional crystal plastic finite element method(CPFEM) simulation. Cohesive element method has been utilized to model the behavior of grain boundaries(GBs). Both plastic deformation in grain interiors and grain boundary opening have been observed in different periods of deformation in UFG W. It is concluded that the high GB density and elongated microstructure in the UFG W suppress crack propagation, decrease the stress concentration and impurity concentration on GBs, therefore enhance the ductility of the material.

关键词： ultrafine grain(UFG) tungsten crystal plasticity interface failure

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Research on Technical Readiness Evaluation Method in Model Development

Research on Technical Readiness Evaluation Method in Model D...

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International Symposium on Computational Intelligence and Design, ISCID

作者： Junyan Zhao Yufei Jia Lichen Shi Xinjun Zhao Lingjie Kong Science and Technology on Complex Land Systems Simulation Laboratory Beijing China

ISBN: (纸本)9781467395885

Current situation of foreign technical readiness development is introduced. On the basis, technical readiness levels corresponding to model product whole-life cycle process in China are given. Evaluation flow of technical readiness is proposed according to features of model project development process in China. Technical readiness evaluation level evaluation standard criteria conditions are refined from three aspects of technology, manufacturing and management. Technical readiness level judgment process is given, thereby guiding technical readiness evaluation in model development process.

关键词： Procurement Manufacturing Standards Prototypes Production Computational modeling Adaptation models

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