Construction and Presentation of Ontology on Semantic Web Based on Formal Concept
Xu Hong · 2007
As the foundation of the semantic web,ontology is a formal,explicit specification of a shared conceptual model and provides a way for computers to exchange,search and identify characteristics.It becomes an important problem on ontology application to build and present ontology.However,there are some defects between several kinds of existing ontology construction methods in many aspects.After analyzing and comparing,this paper makes up these defects by applying formal concept analysis theory to construct concept hierarchies of ontology,and expresses the relevancy of concepts and documents in combination with probabilistic model for ontology presentation.Users can easily search for the most relevant information using the order of the related documents and concepts,so that search efficiency is improved.A case is given to demonstrate how to construct and present ontologies.