Study On The Practice Of Ontology-based Knowledge Organization For Medical Digital Information

The particularity of medical digital information resource increases the difficulty of knowledge organization, so there is a need to continuously innovate knowledge organization tool to improve knowledge acquisition efficiency. The research on the application of ontology cannot but improve knowledge service level in this field. Based on analyses of the status in quo of oversea and domestic research on medical ontology and based on knowledge organization of medical digital information resources, the researcher analyzed characteristics of information organization and knowledge organization, compared 7 knowledge organization tools, deeply discussed relations and differences among medical ontology, MeSH and UMLS Semantic Network, proposed that MeSH should be used in standard expression of concepts, Semantic network should be used in network structure organization of semantic types, and functions and axioms of ontology in reasoning. At last the researcher constructed a Chinese hepatitis ontology model, researched application principles, mechanisms and methods of ontology from shallow to deep level, revealing how the ontology is applied and how it experts effects in the knowledge organization of digital information resources in certain field.