Top-k查询处理优化技术研究

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1、分类号TP393学号14060084ＵＤＣ密级公开工学硕士学位论文Top-k查询处理优化技术研究硕士生姓名江宇学科专业计算机科学与技术研究方向信息检索指导教师杨岳湘研究员国防科学技术大学研究生院二〇一六年十月StudyonTop-kQuryQrocessingOptimizationCandidate：JiangYuAdvisor：Prof.YangYuexiangAthesisSubmittedinpartialfulfillmentoftherequirementsforthedegreeofMasterofEngineeringinComputerSciencea

2、ndTechnologyGraduateSchoolofNationalUniversityofDefenseTechnologyChangsha，Hunan，P.R.ChinaOctober，2016国防科学技术大学研究生院工学硕士学位论文目录摘要................................................................................................................................iABSTRACT..........................

3、............................................................................................ii第一章绪论..................................................................................................................11.1研究背景和意义................................................................

4、..............................11.2本文的主要工作..............................................................................................21.3本文的组织结构..............................................................................................41.4本章小结........................................

5、..................................................................4第二章搜索引擎查询处理相关技术..........................................................................52.1查询处理基础..................................................................................................52.1.1相关性模型.............

6、.............................................................................52.1.2倒排索引..............................................................................................52.1.3自索引结构..........................................................................................82.1.4

7、布尔查询..............................................................................................92.1.5两种基本的查询处理方式................................................................102.2Top-k查询处理算法研究现状.......................................................................11