摘要
服务发现是Web服务应用中极其重要的环节。随着Web服务数目的增长,提供相同功能的服务越来越多,现有的基于服务功能描述的服务发现机制越来越难以满足实际需求,于是向Web服务描述内部加入非功能性描述的成为Web服务应用的一个新研究方向。提出了一种基于反馈信息的QoS量化的Web服务发现和选择模型,采用了反馈机制对注册服务QoS进行量化,通过引入概念相近权重,实现了服务质量动态排序,满足了用户的个性化需求,提高服务的查准率。
Service discovery plays a very important role in web service applications. Current web service discovery mechanism mainly depends on the functional web services description. Large growth in number of web services as well as the growth in the number of re- gistries makes this replication impractical. Web services discovery mechanism with unfunctional description is put forward. A model for web service discovery and selection based on QoS constraints is proposed, furthermore, a feedback mechanism is used to support dynamic evaluation of web services. By using a new concept weight, this model realizes the dynamic sorting of web services which meets the personal requirements of consumers, and improves the precision of selection.
出处
《计算机工程与设计》
CSCD
北大核心
2007年第16期3860-3863,共4页
Computer Engineering and Design
基金
石油大学基金项目(y040703)
