Ontologies and Social Tagging: Relationships and Applications

Ontology and social tagging, despite the differences they have with each other, are the new ways of organizing, representing and sharing knowledge in the electronic environment and can help promote each other. The aim of this research is to describe the relationships and applications of these two in conjunction with each other. The present study is written with a library and conceptual approach. Necessary information was gathered using the study of printed and electronic information resources available in libraries, the Internet, and Persian and English databases. Although the position of tags is in Web 2.0 and the ontology position is in Semantic Web 2.0, but we can use tags in the semantic web and ontologies in Web 2.0. The use of ontology in Web 2.0 causes creation of semantic structure and fixes its defects and weaknesses in organizing and retrieving that resulting from difficulties related to users, vocabulary as well as system weaknesses in the tagging in Web 2.0. The use of tags in ontology, also, causes updating, making them more functional and accepting them in the user community. The lack or deficiency of these is due to the lack of attention paid to end users by ontology and also the literature and resources used to create ontologies are not up to date