目 录
摘要
ABSTRACT
第一章 绪 论.................................................................................................1
§1.1信息检索的现状和发展.......................................................................1
§1.1.1信息检索概述............................................................................1
§1.1.2传统的信息检索的工作原理....................................................1
§1.1.3传统的信息检索的分类............................................................2
§1.1.4传统信息检索的不足................................................................3
§1.1.5语义信息检索的发展现状........................................................4
§1.2本文的工作...........................................................................................5
§1.3本文结构...............................................................................................5
第二章 基础理论知识.....................................................................................6
§2.1本体.......................................................................................................6
§2.1.1本体的定义................................................................................6
§2.1.2本体的作用................................................................................6
§2.1.3 Ontology的描述语言...............................................................7
§2.1.4 本体开发工具...........................................................................8
§2.2本体的构建...........................................................................................9
§2.2.1构建领域本体的方法................................................................9
§2.2.2定义类和分类的等级体系的原则..........................................11
§2.2.3属性定义..................................................................................13
§2.2.4命名..........................................................................................14
§2.3本体的推理.........................................................................................14
§2.3.1本体推理机的分类..................................................................14
§2.3.2本体推理机的基本任务..........................................................15
§2.4本章小结.............................................................................................15
第三章 基于本体的语义扩展.......................................................................16
§3.1查询扩展概述.....................................................................................16
§3. 2查询扩展方法分析............................................................................17
§3.2.1基于全局和局部分析的查询扩展..........................................17
§3.2.2基于词表的查询扩展..............................................................17
§3.2.3基于语义的查询扩展..............................................................18
§3.3基于本体的语义相似度.....................................................................19
§3.3.1本体的语义..............................................................................19
§3.3.2本体的结构..............................................................................20