基于本体的Web服务发现方法研究

Study on approach for web service discovery based on ontology

针对传统Web服务发现准确率低下的问题,提出一种基于本体的服务发现方法。该方法首先基于领域本体构建了Web服务描述模型,并应用OWL-S描述Web服务增强了Web服务的语义信息,然后从基本信息语义相似度、功能语义相似度等方面综合计算Web服务相似度,最后基于Web服务相似度进行请求服务与目标服务的匹配。给出了基于本体的服务发现相关算法,并设计了基于三层架构的服务发现原型系统。实验结果表明,该方法可提高Web服务发现的查全率及查准率。

According to the traditional web services discovery accuracy was low,an approach for web service discovery based on ontology is presented.Firstly,it constructed the web service description model based on domain ontology and described the web service by using owl-s to strengthen semantic information,and then the similarity degree of web services is calculated from two aspects： the similarity degree of basic information and the similarity degree of functional semantics,at last the request service matched the target service by using the similarity degree.Relative algorithms and the web service discovery prototype system with three layers architecture are pre-sented.The experimental results show that the presented approach improved recall ratio and accurate ratio of web service discovery.