The Knowledge Organization of Digital Libraries Based on Ontology

With the knowledge resource becoming more and more abundant,the organizing manner of some traditional knowledge meets the new difficulties facing its new applications.Now the knowledge organization based on Ontology becomes an updated research and application field of digital library knowledge organization,and many researches in digital library and computer pay much attention on it.In this paper,the definition,classification of Ontology and the relations between Ontology and subject thesauri and metadata are introduced,and the applications and functions about ontology are expatiated at the digital library,the foundational framework and method of the constructing of Ontology in digital library and utilizing Ontology to realize the knowledge organization of digital library are investigated in detailed.