Design and Implementation of a Literature Retrieval System Based on Concept Extension
In the literature retrieval system, the retrieval requirement is described by keyword, and the coverage of the retrieval requirement will de-termine whether the retrieval results can meet the needs of the search. In order to improve the extraction process and the coverage of re-trieval requirement, designs and implements a literature retrieval system based on concept extension. Compared with the traditional litera-ture retrieval system, the system has the ability to expand the keywords by using concept network. Aiming to improve the extraction pro-cess, the coverage of retrieval requirement as well as optimizing retrieval experience, the system can automatically construct the concept network based on the encyclopedias web page, extends keywords by selecting the concepts from concept network which are the most simi-lar to the keywords.
Literature RetrievalRetrieval OptimizationConcept NetworkConcept SimilarityConcept ExtensionSystem Design
NETL
NSTL
万方数据
