中文摘要：

实现语义Web服务的关键是对Web服务进行语义描述及其在语义捡索摸型中的应用。国外学术界提出的语义web服务的OWL—S框架并没有充分考虑检索请求的中西语言表达的差异，因此该框架的实际应用必须对中文查询请求进行中文分词处理。语义Web服务的OWL—S检索模型，首先对中文检索请求语句进行中文分词，然后通过本体进行语义标注生成Web服务请求的OWL-S文档，继而在OWL—S语义扩展后的UDDI中实施语义检索匹配。该模型在中文分词的基础上，结合语义Web服务技术实现Web服务的动态查找与组合，可提高Web服务的查全率和查准率。

英文摘要：

The semantic description of Web service and its applications in the semantic retrieval model are the key to realize the semantic Web service. The OWL- S framework of semantic Web service proposed by foreign scholars does not take the differences of the retrieval request expressed by Chinese or western languages into full consideration, so Chinese word segmentation should be done in actual applications. In the OWL -S retrieval model of semantic Web service, the Chinese retrieval request needs Chinese word segmenting firstly, semantic annotating though ontology secondly, then generating the OWL-S documents of Web service request, moreover, doing the semantic retrieval matching in the UDDI after semantic expansion by OWL- S. In the model, combining the septic Web services technology on the basis of Chinese word segmentation, the dynamical searching and composition of Web services is implemented, so that the precision ratio and the recall ratio of Web services are inereassed.