A Method for Building the Index Dictionary Files on Domain-specific Search Engine

Aiming at the characteristic that most search terms of domain-specific search engine are vocabularies relevant to the preconcerted subject, based on the profound analysis and research of index dictionary structure file of Lucene, this paper designs an index dictionary file structure which is appropriate for domain-specific search engine. By classifying the terms according to whether relevant to the preconcerted subject or not and storing them in two index dictionary files, we can effectively improve the response speed of retrieving the information relevant to the preconcerted subject. Experimental results show that, compared to Lucene default structure, the method proposed in this paper is more suitable to the needs of domain-specific search engine.