Enrichment of ontology by exploiting collaborative tagging systems: A contextual semantic approach

The scale of the social web has integrated users in order to organize shared resources. Users freely associate keywords (tags) to resources. This collection of tags creates a folksonomy. Folksonomy is a collaborative tagging system, which has grown popular with its simplicity of free tagging. However, it rises up a number of issues such as ambiguous and redundant tags. So as to achieve an optimal organized web contents, it's important to challenge the effectiveness of folksonomy to enrich ontology. Indeed, this article represents a folks-Ontology semantic enrichment approach based on a contextual mapping between tags and concepts of the ontology. Thus, the act of tagging resources can improve to make relevant recommendations. The analysis of the reconciliation between conceptual ontology models with folksonomy leads us to establish new challenges for our future research to enhance recommender systems.