Semantic Grounding of Tag Relatedness in Social Bookmarking Systems. In Amit P. Sheth, Steffen Staab, Mike Dean, Massimo Paolucci, Diana Maynard, Timothy W. Finin, и Krishnaprasad Thirunarayan (Ред.), The Semantic Web -- ISWC 2008, Proc.Intl. Semantic Web Conference 2008, (5318):615--631, Springer, Heidelberg, 2008. [PUMA: 2008 grounding iswc2008 itegpub myown relatedness semantic similarity sw tag tagging tagorapub ol_web2.0 methods_concepts methods_concepthierarchy semantic_relatedness] URL