新浪微博中的话题突变识别与分析研究
关键词 新浪微博 话题识别 话题演化 话题突变
毕业论文外文摘要
Title Research on the mutation identification and analysis of the topic in Sina Weibo
Abstract
Because of its openness and convenience, micro blog is popular in the public, and has gradually developed into a very important platform for the evolution of Internet public opinion.But at the same time because the micro blog contains a lot of information and spread quickly, the information collection and management of the network public opinion of the microblog platform is often difficult.. And the related research on the sudden issue of micro blog has become a hot topic.. In general, currently in the network public opinion research field for topic detection and topic evolution and the topic mutation research actually has made the certain results, but for the micro Bo special short text topic mutation recognition research is still lacking. This paper is an overview of the topic mutation and the study actuality of microblogging, and on this basis, put forward microblogging statistical features and microblogging topic sentiment analysis based on mutation identification method based on, combined with relevant analysis tools, experiments were carried out, eventually can basically achieve the microblogging mutation of topic detection.
Keywords Sina Weibo Topic recognition Topic evolution Topic mutation
目 次
1 引言 1
1.1 研究背景 1
1.2 研究意义 1
1.3 研究内容 1
2 国内外研究现状 2
2.1 话题识别与追踪 2
2.1.1 基本概念解释 2
2.1.2 话题识别与追踪的任务 3
2.1.3 话题识别与追踪的关键技术 3
2.1.4 话题识别与追踪的技术应用及发展趋势 4
2.2 话题演化 4
2.2.1 话题演化概念 4
2.2.2 话题演化模型 5
2.3话题突变及识别方法 5
2.3.1 话题突变定义及特征 5
2.3.2 基于聚类的话题突变识别 6
2.3.3 基于特征序列的的话题突变识别 6
2.4 新浪微博概述 8
2.4.1 微博的发展状况 8
2.4.2 新浪微博的定义及特征 9
2.4.3 新浪微博的基本功能 11
3 基于微博统计特征项的微博话题突变识别 13
3.1 话题突变识别方法 13
3.1.1 研究思路及方法 13
3.1.2 话题演化中微博统计特征项的变化 13
3.1.3 话题突变识别指标及方法 14
3.2 实验分析 15
3.2.1 工具介绍—北京大学 PKUVIS 微博可视分析工具 15
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