关键词: Web服务, 统一描述、发现和集成协议（UDDI）, 本体, 本体相似度

Abstract: With Web services’ rapid increase in the Internet，it is already an important and key problem how customer discovers the needed Web services.In view of sparse data in the specification of Web services on the UDDI（Universal Description Discovery and Integration） registration center，traditional keywords-based Web services match mechanism UDDI lacks semantic information and has low searching efficiency.In order to improve Web services match’s precision and recall on the UDDI registration center that is based on WSDL（Web Services Description Language） at present and on semantic ontology in the future，this paper proposes a new ontology similarity match that makes Web services match improved in the aspects of precision and recall.

Key words: Web service, Universal Description Discovery and Integration（UDDI）, ontology, ontology similarity