Title :
Enriching Ontologies from Folksonomies for eLearning: DBpedia Case
Author :
Hamdi, Sana ; Gancarski, Alda Lopes ; Bouzeghoub, Amel ; Ben Yahia, Sadok
Author_Institution :
Dept. of Comput. Sci., Fac. of Sci. of Tunis, Tunis, Tunisia
Abstract :
In this paper, we address the problem of how toexploit folksonomy systems and social bookmarking tools toenrich DBpedia ontology while unifying the formal knowledgerepresented by DBpedia ontology with the informal knowledge emerging from tagging. Our approach taps into external tools such as the sense inventory WordNet to correct mistakes resulted from the free tagging and takes advantage from semantic relationships between tags to recognize resources´context. We performed evaluations with focus on the particularly challenging problem of resources´ ambiguity to prove that not all resources shared in folksonomies are relevant resources for DBpedia ontology and to show that our pre-processing step increases precision values.
Keywords :
computer aided instruction; ontologies (artificial intelligence); social networking (online); DBpedia case; DBpedia ontology; WordNet; eLearning folksonomies; formal knowledge; free tagging; informal knowledge; resource context; sense inventory; social bookmarking tools; Conferences; Context; Google; Knowledge based systems; Ontologies; Semantics; Tagging; enrichment; folksonomy; ontology;
Conference_Titel :
Advanced Learning Technologies (ICALT), 2012 IEEE 12th International Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4673-1642-2
DOI :
10.1109/ICALT.2012.197