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传统的Web服务描述语言(WSDL)无法合理刻画数量不断增加且动态改变的传感网服务,导致具备相似输入输出接口的传感网服务不能被区分且服务存储与搜索负担日益加重,对此,提出在WSDL语法框架上扩展基于逻辑表达式的服务输入输出关系,融合Google语义距离和Levenshtein编辑距离计算服务相似度,并在此基础上定义服务输入输出匹配等级.实验结果表明,通过对服务输入输出关系的语义扩展,能有效地提高传感网服务的检索和选取效率.
The traditional Web Services Description Language (WSDL) can not reasonably characterize an increasing number of dynamically changing sensor network services, which results in that the sensor network services with similar I / O interfaces can not be distinguished and service storage and search burden are aggravated. This paper proposes to extend the input and output of services based on logical expressions in the framework of WSDL syntax and calculate the service similarity by combining the Google semantic distance with the Levenshtein edit distance and define the matching level of service input and output based on the results.It shows that through the input of service input The semantic extension of the output relationship can effectively improve the retrieval and selection efficiency of WSN.