面向文本流的分布式主题聚类技术研究与实现.pdf

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1、分类号TP393学号UDC004.75密级公开工程硕士学位论文面向文本流的分布式主题聚类技术研究与实现硕士生姓名唐黎哲学科专业计算机技术研究方向分布计算技术指导教师刘锋副研究员国防科学技术大学研究生院二〇一七年七月ResearchandImplementationofDistributedTopicClusteringTechnologyforTextFlowCandidate:TangLizheAdvisor:LiuFengAdissertationSubmittedinpartialfulfillmentoftherequirementsforthedegreeofMasterofE

2、ngineeringinComputerTechnologyGraduateSchoolofNationalUniversityofDefenseTechnologyChangsha,Hunan,P.R.ChinaJuly4,2017国防科学技术大学研究生院工程硕士学位论文目录摘要........................................................................................................................iABSTRACT...........................

3、....................................................................................iii第一章绪论............................................................................................................11.1研究背景.........................................................................................

4、..........11.1.1主题模型........................................................................................11.1.2文本流主题聚类............................................................................21.1.3分布式计算....................................................................................31.2研

5、究现状...................................................................................................51.3主要问题...................................................................................................81.3.1流式计算场景下主题动态演变和模型增量更新........................81.3.2主题模型分布式并行.......................

6、.............................................91.4本文工作...................................................................................................91.5论文结构...................................................................................................10第二章主题模型简介...........................

7、.................................................................132.1LDA主题模型..........................................................................................132.1.1术语定义........................................