The Design of Semantic Retrieval System Based on Ontology

Digital library has so huge of information, and people eager to a kind of information retrieval system which can fast, accurately and economically discover the certain topic information. How to help users discover information scientific and efficient from huge information in database and how to provide users with satisfied recall and precision of retrieval are the research aim of semantic retrieval system. However, traditional tool used can make useless information many or use information less, so it can't satisfy the desire of people. Semantic web on ontology-based provides a new guidance way for information retrieval, and recall and precision can be improved greatly. Under which this paper designs a semantic retrieval system based on ontology. The developed system consists of four main components: ontologies building, formal processing, semantic retrieval and user interface.