Abstract: Clustering Web services would greatly boost the ability of Web service search engine to retrieve relevant ones. hhe ProgrammableWeb. com is a popular online social Mashup site. Mashup as a Wclrbased application is Web services that developers provide. We proposed a novel approach, in which both description documents and tags arc uti- lined for Web service clustering. Furthermore,we presented a tag recommendation strategy to improve the performance of this approach. The experimental results show that the accuracy of tag recommendation-based services clustering is higher than other two methods, which indicates that the tag recommended strategy effectively expands the number of tags of Mashup services with few tags,so introducing more tag information,thus the clustering effect is better.

Key words: Mashup, Tag, Recommendation, Clustering