TY  - CONF
AU  - Cattuto, Ciro
AU  - Benz, Dominik
AU  - Hotho, Andreas
AU  - Stumme, Gerd
A2  - Sheth, Amit P.
A2  - Staab, Steffen
A2  - Dean, Mike
A2  - Paolucci, Massimo
A2  - Maynard, Diana
A2  - Finin, Timothy W.
A2  - Thirunarayan, Krishnaprasad
T1  - Semantic Grounding of Tag Relatedness in Social Bookmarking Systems
T2  - The Semantic Web -- ISWC 2008, Proc.Intl. Semantic Web Conference 2008
PB  - Springer
CY  - Heidelberg
PY  - 2008/
M2  - 
VL  - 5318
IS  - 
SP  - 615
EP  - 631
UR  - http://www.kde.cs.uni-kassel.de/pub/pdf/cattuto2008semantica.pdf
M3  - http://dx.doi.org/10.1007/978-3-540-88564-1_39
KW  - 2008
KW  - grounding
KW  - iswc2008
KW  - itegpub
KW  - myown
KW  - relatedness
KW  - semantic
KW  - similarity
KW  - sw
KW  - tag
KW  - tagging
KW  - tagorapub
KW  - ol_web2.0
KW  - methods_concepts
KW  - methods_concepthierarchy
KW  - semantic_relatedness
L1  - 
SN  - 
N1  - 
N1  - 
AB  - Collaborative tagging systems have nowadays become important data sources for populating semantic web applications. For taskslike synonym detection and discovery of concept hierarchies, many researchers introduced measures of tag similarity. Eventhough most of these measures appear very natural, their design often seems to be rather ad hoc, and the underlying assumptionson the notion of similarity are not made explicit. A more systematic characterization and validation of tag similarity interms of formal representations of knowledge is still lacking. Here we address this issue and analyze several measures oftag similarity: Each measure is computed on data from the social bookmarking system del.icio.us and a semantic grounding isprovided by mapping pairs of similar tags in the folksonomy to pairs of synsets in Wordnet, where we use validated measuresof semantic distance to characterize the semantic relation between the mapped tags. This exposes important features of theinvestigated similarity measures and indicates which ones are better suited in the context of a given semantic application.
ER  -