基于语义相似度的Web服务发现研究

Research on Web Service Discovery Based on Semantic Similarity

Web服务的大量涌现对服务发现提出了挑战,UDDI上基于关键词和简单分类的服务发现机制已经不能很好满足需要。文中在分析现有相关研究的基础上,给出了一种基于语义相似度的Web服务发现方法。该方法充分利用服务中存在的语义信息,针对服务请求和广告服务中描述的功能进行匹配,并通过语义相似度来衡量两者匹配的程度。文中具体给出了服务间语义相似度的计算方法并通过示例说明了服务匹配的过程。

Current infrastructure of Web services discovery such as UDDI provides text and taxonomy based search capabilities. With the large growth of Web services, the current discovery mechanism becomes inefficient. Ontology and semantic based discovery of services is a promising approach to address this challenge. Proposes a semantic similarity based service discovery approach which makes good use of semantic information and concentrates on the matching of services on the basis of the capabilites in terms of inputs,outputs, preconditions and effects. The method to measure semantic similarity among services is discussed in this paper in detail.