BibSonomy publications for /user/stumme/web2.0Mon Jun 09 21:10:50 CEST 2008Proc. of the Fourth International Workshop on Adversarial Information Retrieval on the WebThe Anti-Social Tagger - Detecting Spam in Social Bookmarking Systems20082008 systems bookmarking myown web tagger 2.0 social web2.0 folksonomy folksonomies tagorapub spam Mon Jun 09 14:05:11 CEST 2008Patras, GreeceProceedings of the 3rd Workshop on Ontology Learning and Population (OLP3)JulySemantic Analysis of Tag Similarity Measures in Collaborative Tagging Systems2008systems 2008 collaborative tagging web2.0 semantic web myown folksonomy folksonomies 2.0 Social bookmarking systems allow users to organise collections of resources on the Web in a collaborative fashion. The increasing popularity of these systems as well as first insights into their emergent semantics have made them relevant to disciplines like knowledge extraction and ontology learning. The problem of devising methods to measure the semantic relatedness between tags and characterizing it semantically is still largely open. Here we analyze three measures of tag relatedness: tag co-occurrence, cosine similarity of co-occurrence distributions, and FolkRank, an adaptation of the PageRank algorithm to folksonomies. Each measure is computed on tags from a large-scale dataset crawled from the social bookmarking system del.icio.us. To provide a semantic grounding of our findings, a connection to WordNet (a semantic lexicon for the English language) is established by mapping tags into synonym sets of WordNet, and applying there well-known metrics of semantic similarity. Our results clearly expose different characteristics of the selected measures of relatedness, making them applicable to different subtasks of knowledge extraction such as synonym detection or discovery of concept hierarchies.Wed Dec 12 19:04:22 CET 2007New York, NY, USACHI '06: Proceedings of the SIGCHI conference on Human Factors in computing systems111--120Dogear: Social bookmarking in the enterprise2006wissensmanagement intranet knowledge bookmarking wm dogear web2.0 management Social km Tue Jun 13 11:13:58 CEST 2006ESWCDBLP:conf/esws/2006560-574Interactive Ontology-Based User Knowledge Acquisition: A Case Study.2006mining 2006 european personalisation web2.0 eswc proceedings semantic conference and Thu Mar 30 19:13:14 CEST 2006International Semantic Web Conference522-536LNCSOntologies Are Us: A Unified Model of Social Networks and Semantics2005seminar2006 tagging web2.0 folksonomies socialnetworks socialsoftware