Finding similar pages in a social tagging repository

Social tagging describes a community of users labeling web content with tags. It is a simple activity that enriches our knowledge about resources on the web. For a computer to help users search the tagged repository, it must know when tags are good or bad. We describe TagScore, a scoring function that rates the goodness of tags. The tags and their ratings give us a succinct synopsis for a page. We `find similar' pages in Del.icio.us by comparing synopses. Our approach gives good correlation to the full cosine similarity but is hundreds of times faster. Categories and Subject Descriptors: H.3.5 [Information Retrieval]: Online Services--Web-based services General Terms: Algorithms, Experimentation

• Type: Conference
• Year: 2008
• Where: WWW
• Authors: Alex Penev, Raymond K. Wong
• Keywords: Cosine Similarity, Internet Technology, Services General Terms, Users Labeling Web, WWW 2008