目录摘要.......................................................................................1ABSTRACT....................................................................................2第一章绪论.........................................................................31.1研究背景...........................................................................31.2知识图谱...........................................................................31.3基于知识图谱问答系统........................................................41.3本文组织结构.....................................................................4第二章自动问答研究概述.........................................................52.1研究现状...........................................................................52.2知识库问答的主流方法........................................................62.3本章小结...........................................................................7第三章KBQA系统框架设计.........................................................83.1系统中的知识库..................................................................83.2预处理............................................................................103.3主题实体链接...................................................................113.4关系链推理......................................................................123.5重排序............................................................................133.6本章小结.........................................................................13第四章KBQA系统实现.............................................................144.1数据处理.........................................................................144.1.1数据过滤及清洗..........................................................144.1.2知识库拓展.................................................................144.1.3加载知识库.................................................................154.2中文分词.........................................................................164.3主题实体链接...................................................................164.3.1算法描述....................................................................164.3.2词汇特征....................................................................184.3.3基于序列标注模型的特征..............................................194.3.4实体链接最终得分.......................................................214.4关系链推理......................................................................214.4.1算法描述....................................................................224.4.2基于字粒度的匹配度....................................................234.4.3基于词粒度的匹配度....................................................254.4.4遇到的问题.................................................................264.5问句输入输出...................................................................264.6实验结果.........................................................................274.7本章小结.........................................................................28第五章总结与展望...................................................................295.1本文总结.........................................................................295.2展望.........................................................
