Semantic disambiguation and contextualisation of social tags

Authors:
Ignacio Fern$#225/ndez-Tobí/as;Iv$#225/n Cantador;Alejandro Bellogí/n
Affiliations:
Departamento de Ingenierí/a Inform$#225/tica, Universidad Autó/noma de Madrid, Madrid, Spain;Departamento de Ingenierí/a Inform$#225/tica, Universidad Autó/noma de Madrid, Madrid, Spain;Departamento de Ingenierí/a Inform$#225/tica, Universidad Autó/noma de Madrid, Madrid, Spain
Venue:
UMAP'11 Proceedings of the 19th international conference on Advances in User Modeling
Year:
2011

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Abstract

We present an algorithmic framework to accurately and efficiently identify the semantic meanings and contexts of social tags within a particular folksonomy. The framework is used for building contextualised tag-based user and item profiles. We also present its implementation in a system called cTag, with which we preliminary analyse semantic meanings and contexts of tags belonging to Delicious and MovieLens folksonomies. The analysis includes a comparison between semantic similarities obtained for pairs of tags in Delicious folksonomy, and their semantic distances in the whole Web, according to co-occurrence based metrics computed with results of a Web search engine.