计算机科学 ›› 2016, Vol. 43 ›› Issue (4): 106-110.doi: 10.11896/j.issn.1002-137X.2016.04.021
何倩,李佳,胡启伟,强保华
HE Qian, LI Jia, HU Qi-wei and QIANG Bao-hua
摘要： 发布订阅机制有利于实现对大规模Web服务的主动管理,提出了基于QoS的Web服务发布订阅模型和系统架构,设计了基于QoS和多级索引的Web服务匹配算法。Web服务的QoS属性和订阅的属性约束所形成相应的匹配关系构成模型的关键；将发布的Web服务及其QoS和服务订阅一起生成过滤矩阵,通过属性约束覆盖可以减少重复匹配；按QoS属性类型对发布的Web服务建立多级索引,生成属性到服务的映射,可以实现服务订阅的快速匹配。实验结果表明,该Web服务发布订阅系统比传统方法有较大提升,能够适应于大规模分布式Web服务管理。
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