| 基于语义与QoS全局感知的web服务组合 |
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| 引用本文： | 张佩云,黄波,孙亚民.基于语义与QoS全局感知的web服务组合[J].东南大学学报,2008,24(3). |
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| 作者姓名： | 张佩云 黄波 孙亚民 |
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| 作者单位： | [1]南京理工大学计算机科学与技术学院,南京210094 [2]安徽师范大学数学计算机科学学院,芜湖241000 |
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| 基金项目： | 高等学校博士学科点专项科研项目，南京理工大学改革创新基金 |
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| 摘 要： | 针对服务组合流程,提出了语义与QoS全局感知的服务组合.在全局语义匹配过程中,既考虑了全局匹配,又考虑了从QoS角度进行匹配.当对服务组合有全局语义满足及QoS约束要求时,在全局范围里选择满足整个服务组合流程的QoS约束和语义匹配度要求的具体服务集,并实现服务组合的优化解.建立了全局匹配的QoS模型及其评价方法,基于该模型及评价方法,采用遗传算法实现全局语义匹配度最大化及满足用户的QoS指标需求.实验结果和分析表明,基于语义与QoS感知的服务匹配算法是可行和有效的.
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| 关 键 词： | 语义匹配 全局匹配 QoS模型 遗传算法 |
Web services composition based on global semantics and QoS-aware aspect |
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| Zhang Peiyun,Huang Bo,Sun Yamin.Web services composition based on global semantics and QoS-aware aspect[J].Journal of Southeast University(English Edition),2008,24(3). |
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| Authors: | Zhang Peiyun Huang Bo Sun Yamin |
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| Abstract: | A global semantics matching and QoS-awareness service selection are proposed when aimed at a web services composition process.Both QoS-aware matching and global semantic matching are considered during the global matching.When there are demands for global semantic matching and QoS of service composition,a concrete service set which meets the demands is selected for the whole service composition process and an optimal solution is also achieved.A QoS model is built and the corresponding evaluation method is given for the matching of the service composition process.Based on them,a genetic algorithm is proposed to achieve the maximal global semantic matching degree and fulfill the QoS requirements for the whole service composition process.Experimental results and analysis show that the algorithm is feasible and effective for semantics and QoS-aware service matching. |
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| Keywords: | semantic matching global matching QoS model genetic algorithm |
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