一种基于命名空间过滤的服务语义匹配算法

Semantic Matching Algorithm Based on Namespace Filtration

针对目前语义匹配算法的服务查全率较低、查询时间过长等问题,提出了一种基于空间命名过滤的语义匹配算法。该方法利用请求服务的空间命名描述对注册服务集进行过滤,在此基础上,引入语义匹配度,给出了结合语义匹配度和QoS指标值的Web服务匹配算法,分别从服务的功能与质量上对注册服务集实现最优匹配。实验结果表明,改进算法减少了服务选择时间,提高了选择的正确性。

In order to solve the deficiencies in the matching algorithm base on semantic, it raises a matching method based on namespace filtration. The method filtrates services which registered to UDDI by using namespace, introduces semantic matching degree, and proposes Web service matching algorithm which combines semantic matching and QoS index value. It achieves optimal matching on service functions and qualities. The experiment shows that the algorithm shortens the service selection time, improves the accuracy of selection and enhance its efficiency.