Hybrid Chinese Information Retrieval Model Based on the Combination of Keyword and Concept

摘要

A hybrid model that is based on the combination of keywords and concept was put forward. The hybrid modelis built on vector space model and probabilistic reasoning network. It not only can exert the advantages of keywordsretrieval and concept retrieval but also can compensate for their shortcomings. Their parameters can be adjustedaccording to different usage in order to accept the best information retrieval result,and it has been proved by