关键词: 本体 信息检索 语义

Abstract:

The rapid growth and diversities of Web information bring a lot of difficulties to efficient information retrieval. The current information retrieval   tools just offer keyword-based searching, but ignore the semantic content of the keyword itself. The authors＇ library information retrieval system take    es advantage of ontology, which expands the requirements of users to a semantic word set,and provides a document analyzer to filter the Web pages return
  ed by the search agent according to a certain algorithm. Consequently it presents the most relavant documents to the users.

Key words: ontology, information retrieval, semantics