Semantic Retrieval Model Based On The Framework Web Ontology

Traditional information retrieval methods are lack of semantic understanding and organization to information; results in computer hardly understand the semantic inherent meaning and relationship between information resources and can not meet the needs of the user's information retrieval. Semantic Web expands the human-readable information to the contents which the computer can understand, and Ontology determines the precise meaning by the strict definitions of concepts and the relationship between concepts, which represent the common recognized and shared knowledge. If Ontology is applied in information retrieval, it can make up the deficiencies of traditional search methods take advantage of the unified description and given semantic to information resource and users' retrieval requests by the concepts of Ontology. Therefore, ontology-based semantic retrieval is to one of the hot focus in retrieve areas.By researching the progress of the theory and applications of semantic information retrieval based on Ontology in domestic and international, and against existent defects in traditional information retrieval, semantic retrieval model based on Framenet Web Ontology which seems ontology as core is proposed. The paper firstly introduces the basic theory of Framenet Web Ontology, such as its characteristic, structure and so on, and the achieved objectives of semantic search is analyzed from the current study degree to Framenet Web Ontology, according to which semantic retrieval model based on Framenet Web Ontology is designed, at the same time each functions and work processes of this model are described in detail. Then two key technologies of the realization of this semantic retrieval which are lemma expedition technology and the reasoning technology based on Jena, at last the paper illustrates how to extend its terms through example, and how to realize the information reasoning of this ontology. The innovations of this paper are to expand the lemma of Framenet Web Ontology, and have established the custom inference rules on the extension of the capacity of semantic information expression and processing about this ontology, and then the design of semantic retrieval model based on Framenet Web Ontology has finished in the existent OWL documents of the Framenet Web Ontology.