摘要： 介绍一种针对特定领域的智能搜索引擎。它采用一种新型的概念背景网络来组织领域背景知识；然后在背景网上对领域概念进行概念扩展和相关性比较。与其他搜索引擎相比，该智能搜索引擎能对自然语言进行某种程度的语义理解；利用领域知识来提高搜索的查准率和查全率。

关键词: 概念背景网, 概念层次网络理论, 句型分类树

Abstract: This article introduces a new kind of intelligent search engine oriented at special domain. It organizes its background information with a new type of concept background net, on which concept extension and corelation comparison are carried out. This search engine can understand natural language in semantic to certain extent. High accuracy and integrality are achieved by using domain knowledge.

中图分类号: 

• TP391.3