基于服务质量反馈的语义Web服务匹配算法

摘要

传统Web服务框架不支持基于服务质量(QoS)的查询,不能满足用户对服务性能的要求.针对该问题,通过建立QoS本体,提出基于服务功能和QoS的两阶段服务匹配算法.在此基础上设计一种基于用户反馈的服务质量算法,根据发布和反馈的QoS,综合评价服务的质量.实验结果表明,该算法能提高查准率,改善服务发现的性能.%The traditional Web services framework does not support Quality of Service(QoS)-based queries, and can not meet the performance requirements of service users. Based on ontology, this paper establishes the QoS ontology, proposes a two-stage service matching algorithm that based on function and QoS, and an algorithm of QoS-feedback which integrally computes the release and feedback QoS of the service. Experimental results show that the new approach can enhance the precision rate, and improve the performance of service discovery.