This paper presented the state-of-the-art of semantic Web service from various aspects. First of all,this paper explained the basic concepts and character of semantic Web service. And then,it summarized and analyzed several kinds of service description languages which were the base of service discovery. Moreover, it comprehensively summarized and discussed service matching as the key problem of service discovery from two aspects—single service matching and service composition matching. In the end,this paper proposed the challenge and the future work of the study on semantic Web service discovery.%从不同方面对语义Web服务发现相关技术进行综述.阐述了语义Web服务的基本概念和特点,总结和分析了语义服务发现的基础——语义服务描述语言,重点从单服务匹配和服务组合匹配两个方面对语义Web服务发现的关键问题——语义Web服务匹配近年来的研究,进行了全面的总结和讨论,并指出了语义Web服务发现研究领域的挑战和未来的研究方向.
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