基于服务质量反馈的语义Web服务匹配算法

Semantic Web Services Matching Algorithm Based on QoS-feedback

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.