面向在线问答系统的专家发现技术研究.pdf

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1、分类号TP391.1学号14063108UDC004.93密级公开工程硕士学位论文面向在线问答系统的专家发现技术研究硕士生姓名齐悦学科专业软件工程研究方向在线问答系统的专家发现指导教师李爱平研究员国防科技大学研究生院二〇一七年二月ResearchonthetechnologyofexpertfindingforonlinequestionansweringsystemCandidate：QiYueSupervisor：Prof.LiAipingAthesisSubmittedinpartialf

2、ulfillmentoftherequirementsfortheprofessionaldegreeofMasterofEngineeringinSoftwareEngineeringGraduateSchoolofNationalUniversityofDefenseTechnologyChangsha，Hunan，P.R.ChinaOctober，2017第1页目录摘要.............................................................

3、..................................................................1ABSTRACT......................................................................................................................2第一章绪论...................................................

4、................................................................31.1课题背景与意义................................................................................................31.2相关研究现状.....................................................................

5、...............................81.3主要研究内容....................................................................................................91.4论文结构.....................................................................................................

6、.....10第二章相关理论和技术.............................................................................................112.1在线问答系统..................................................................................................142.1.1在线问答系统概述................

7、................................................................142.1.2在线问答系统发展历程........................................................................122.2用户权威度计算方法...................................................................................

8、...142.2.1PageRank算法.......................................................................................142.2.2关于PageRank的改进算法..................................................................182.3主题模型..............................................