Research And Application Of Service Discovery Based On Service Access Log

Web Service discovery is the important part in the web service structure, which is the premise for web service application, and the important guarantee to integrate and share the web resource. As the related technological standards of web service and enterprise application platform of web service is gradually improved, the quantity of web service in the internet increases geometrically. In this case, how to discovery web services from mass web services which meet users'needs efficiently and accurately is one hotspots of the current research.Service discovery is difficult because the express of the query isn't accurate and the descriptions of web services can't fully show the information of the service, which cause the low precision. The main solution for web service discovery is concerned on web service description, such as adding semantics, which use ontology to describe, discovery, compose the web services, or mining the execution file of web service. The method proposed in this paper is concerned on the inaccurate and incomplete query in web service mechanism, aiming to improve the express of the query and make the expression more precise.The paper introduces the concept of the query expansion in traditional service discovery, constructs the service access log, applies the statistical result of service access log in the service discovery,extends the query, then improves the precision.This paper mainly accomplished the following tasks:①Based on the comparative study of web service, web service discovery and query expansion, in view of the inaccurate and incomplete query, constructed service access log.②Studied the immanent connection between the query and web service and the immanent connection between the query words, composed the correlation algorithm between the query word and service and the similarity algorithm between the query words.③Designed the web service discovery mechanism based on the service access log, applied it in service discovery process, and improved the precision of the traditional service discovery.④Designed and implemented a service discovery prototype system bases on service access log, and described the function modules in detail . ⑤Applied the service discovery prototype system bases on service access log for stock investment. The application effect verified the availability of the proposed mechanism in this paper.