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基于异构消息匹配QoS全局最优E-workflow组合研究

Study on E-workflow composition with QoS global optimum based on heterogeneous messages match
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摘要 提出了一种分布消息匹配的工作流组合方法。移动agent代理E-service,构成一个自治的感知单元,移动agent通过语义的协商确认匹配关系,E-workflow组合可以通过移动agent的演化完成。通过接口消息对应匹配的方法,完成了服务之间关系的确定,建立工作流组合的全局结构,将E-workflow的QoS全局优化转化为一个多目标的优化问题,通过基于快速排序算法改进的NSGA-Ⅱ算法进行求解。通过仿真表明方法实现了分布自组织和全局适应性的功能。 A distributed messages match method of E-workflow composition is proposed.The mobile agent represents E-service and constitutes an autonomic unit.The E-workflow composition is achieved by the evolution of the mobile agent based on the semantic negotiation.By understanding properties of messages,the mobile agent uses projection-join closure to capture such message situations,the optimization of the E-workflow composition is translated into dynamic services selection with QoS global optimization.We propose an improved algorithm based on quick sort and NSGA-Ⅱ to resolve it.The simulation results show that the approach can significantly improve the E-workflow performance.It adapts well to the changes of dynamic environments.
作者 孙宏彬 丁永生
机构地区 长春工程学院 东华大学信息科学与技术学院
出处 《计算机工程与应用》 CSCD 北大核心 2008年第28期32-36,共5页 Computer Engineering and Applications
基金 国家自然科学基金No.60534020) 国家教育部新世纪优秀人才支持计划No.NCET-04-415) 教育部科技创新工程重大项目培育资金项目( No.706024) 上海市国际科技合作基金项目( No.061307041)~~
关键词 移动AGENT 约束优化 E—workflow组合 消息 mobile agent constrained optimization E-workflow composition message
分类号 TP391 [自动化与计算机技术—计算机应用技术]
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参考文献19

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计算机工程与应用
2008年 第28期

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