Folksonomy expansion process using soft techniques

The use of folksonomies involves several problems due to its lack of semantics associated with them. The nature of these structures makes difficult the process to enrich them semantically by the association of meaningful terms of the Semantic Web. This task implies a phase of disambiguation and another of expansion of the initial tagset, returning an increased contextualised set where synonyms, hyperonyms, gloss terms, etc. are part of it. In this novel proposal a technique based on confidence and similarity degrees is applied to weight this extended tagset in order to allow the user to obtain a customised resulting tagset. Moreover a comparision between the two main thesaurus, WordNet and Wikipedia, are presented due to their great influence in the disambiguation and expansion process.