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Multi-view collaborative modeling method for complex system

International Journal of modeling, Simulation, and Scientific Computing 2016年第3期7卷 307-318页

作者： Xiaodong Huang Li Zhang Jing Zhou Yaofei Ma Department of Scientific Research Naval Aeronautical and Astronautical University Yantai 264001 P.R.China School of Information Yunnan University Kunming 650091 P.R.China School of Automations Beihang University Beijing 100191 P.R.China

It is hard to model a complex system by simply combining its partial *** paper presents a multi-view collaborative modeling method for complex *** users,multi subjects,multi granularities and multi models in complex system modeling are unified to multi *** principles and schemes for the decomposition of complex systems are *** to the principle of separation of concerns,a complex system can be decomposed to a variety of model *** modeling means that the views can be associated and integrated to form complete system model through their *** to the form of representation,the models are generalizes to three kinds,i.e.,view models,semantic models and storage models,which provides a unified framework for conversion and mapping between the *** the guidance of the method,a tool for the modeling of warship C2 system is *** show that the tool can support collaborative modeling and design for C2 system outstandingly.

关键词： Complex system multi views collaborative modeling modeling tool

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A virtual learning environment of the Chinese University of Hong Kong

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International Journal of Digital Earth 2011年第2期4卷 171-182页

作者： Mingyuan Hu Hui Lin Bin Chen Min Chen Weitao Che Fengru Huang Institute of Space and Earth Information Science Fok Ying Tung Remote Sensing Science BuildingChinese University of Hong KongShatinN.T.Hong KongChina Institute of Remote Sensing and Geographic Information System Peking UniversityBeijingChina

This paper introduces a scalable virtual learning environment of the ChineseUniversity of Hong Kong;an explicitly geographical, immersive, and sharable 3Dlearning space with comprehensive social elements. It is characterized by multiuser collaborative modeling, group learning approaches of geo-collaboration,social space-oriented hierarchical avatars, and knowledge exchanging and sharingbased on virtual geographic experiments. Applications for the purpose of publiceducation and virtual geographic experiment, and indicated future works provethe possibility to offer a greater opportunity to foster interdisciplinary collaborations, revitalize teaching patterns and learning contents, improve learners’cognitive abilities to solve problems, and enhance their understanding of scientificconcepts and processes.

关键词： virtual learning environment collaborative modeling hierarchical avatars virtual geographic experiments digital earth

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Dynamic Virtual Prototype of Soldier System

Dynamic Virtual Prototype of Soldier System

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第二十七届中国控制会议

作者： Li Feng,Li Shuguang 2,Zheng Lei 3,Lou Li 1,Xu Cheng 1 1.School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,P.R.China2.Institute of Chemical Defense and Technology,Beijing 102205,P.R.China 3.School of Transportation,LuDong University,Yantai 264025,P.R.China

The development of soldier system is customarily based on intuition and experience,however,the costs of this process without simulation is quite *** this,the soldier simulation system should be *** on the multi-body dynamics principle,the definition of dynamic virtual prototype（DVP） of soldier system is *** topological structure of soldier system is constructed and the strategy of realizing the DVP for soldier system is put *** methodology of virtual prototype modeling is laid *** main portion of the paper is followed along with a discussion of four aspects of DVP:the collaborative simulation environment and hardware configuration are established,the information architecture of DVP is presented,and the module modeling methods of DVP are studied in detail including interior/exterior ballistic trajectory,weapon system,human-weapon system,computer/communication system,and defence *** an example of soldier system was simulated to validate this *** discussion of this paper can forecast and correct mistakes which may appear in the design before the prototype is manufactured to assure the feasibility of design scheme,shorten the period of product design and reduce the costs of production.

关键词： System simulation Virtual prototype collaborative modeling Soldier system

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工作流协同建模中基于树形结构的多粒度并发控制算法

工作流协同建模中基于树形结构的多粒度并发控制算法

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第二十一届中国数据库学术会议

作者：周小平王茜于玮萍张祖红东南大学计算机科学与工程系

1引言工作流模型是工作流执行的前提和基础,它用一种形式化的,计算机可处理的方式来表示业务过程。传统的工作流系统中,一般只支持单用户集中建模,这要求建模人员全面了解业务过程,然而,随着虚拟企业的发展,企业间的分工和合作越来越紧... 详细信息

1引言工作流模型是工作流执行的前提和基础,它用一种形式化的,计算机可处理的方式来表示业务过程。传统的工作流系统中,一般只支持单用户集中建模,这要求建模人员全面了解业务过程,然而,随着虚拟企业的发展,企业间的分工和合作越来越紧密,业务过程变得复杂灵活,这对模型专业人员提出更高的要求。传统的单用户建模的方式显现弊端,这种情况下如何使得分布于异地的具有不同业务专长的人员进行协同建模,就成为一个需要研究的课题。其中,在多用户异地协同建模时如何保证群组人员间工作流内部描述模型的一致性是系统实现的一个关键问题。本文结合已经实现的一个支持协同建模的工作流管理系统,着重探讨了工作流协同建模工具中的并发控制和模型一致性维护问题。

关键词： Multi-granularity Concurrency control collaborative modeling WfMS

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