基于社会网络分析的气象灾害微博信息传播研究(论文18000字)
摘要：在移动互联网快速发展的时代背景下，微博在信息传播方面扮演着越加重要的角色，已经成为很多人了解社会热点、娱乐等各类信息的重要媒介，因此对微博上的信息传播特征进行深入研究非常必要。目前针对微博信息传播的研究中，大部分以复杂网络理论为基础，利用大量的微博信息传播数据建立传播模型为研究方法，还有部分以社会网络分析的方法来研究微博上的信息传播特点，具体针对气象灾害信息的传播研究相对较少。
本文选取气象灾害信息作为研究对象，通过爬虫技术从新浪微博上采集相关微博的传播数据，利用社会网络分析法和基本统计分析相结合的方式对微博传播数据进行处理分析。目的在于研究气象灾害信息在新浪微博上的传播特征，为气象灾害舆情在微博上的传播控制提供一个参考。在整个分析过程中所用的工具有用来采集微博数据的集搜客网络爬虫，还有统计分析工具SPSS和数据可视化处理工具Gephi。主要研究内容是基于社会网络分析知识与基本统计知识，从点度中心性、中间中心性、接近中心性等指标得出了气象灾害信息在微博上传播网络的节点特征及传播特点，同时揭示了气象灾害信息在微博上传播的时间规律。最后，本文验证了社会网络分析法在研究在线信息传播上的有效性，并且为微博上信息传播研究提供了新的研究视角。
关键词：微博；数据分析；气象灾害信息；信息传播网络；社会网络分析法；
Research on Information Dissemination of Meteorological Disaster Based on Social Network Analysis
Abstract:With the rapid development of the mobile Internet era, micro-blog plays a more important role in the dissemination of information, media has become a method for the public to get all kinds of information like entertainment and other social hot spots. Therefore, further study on the characteristics of micro-blog is necessary for the understanding of information dissemination. At present, in the research of micro-blog information communication, most of them are based on the complex network theory, and use a large number of micro-blog information dissemination data to establish the communication model as the research method, There are also part of the social network analysis methods to analyze the characteristics of information dissemination on micro-blog, There is relatively little research on the dissemination of meteorological disaster information.
This paper chooses the meteorological disaster information as the research object, and collects the disseminated data of the related microblogging from the Sina microblogs through the reptile technology, and uses the social network analysis method and the basic statistical analysis to analyze the microblogging data. The purpose of this study is to study the characteristics of meteorological disaster information transmission on Sina microblogging, and provide a reference for the communication control of meteorological disaster on microblogging. The tools used throughout the analysis process are used to collect microblogging data collection search network crawler, as well as statistical analysis tools SPSS and data visualization processing tools Gephi. The main research contents are based on the analysis of knowledge and basic statistical knowledge of social network, and the characteristics of the nodes and the characteristics of the spread of the meteorological disaster information on the microblogs are derived from the aspects of degree center, intermediate center and close center. The regularity of the spread of meteorological disaster information on microblogging. Finally, this paper verifies the effectiveness of social network analysis in the study of online information dissemination, and provides a new research perspective for information dissemination research on microblogging.
Key words：Micro-blog; data analysis; meteorological disaster information;Social network analysi
目 录
1 绪论 1
1.1 研究背景 1
1.2 选题背景和意义 1
1.2.1选题背景 1
1.2.2选题意义 2
1.3 国内外研究现状 2
1.3.1 国外研究现状 2
1.3.2 国内研究现状 3
1.4 研究思路与框架 4
2 相关理论与工具介绍 6
2.1 社会网络分析法 6
2.1.1 中心性 6
2.1.2 点度中心性 6
2.1.3 中间中心性 7
2.1.4 接近中心性 7
2.2 Gephi介绍 7
3 数据采集与处理 8
3.1 数据源选择 8
3.2 数据采集 8
3.3 数据处理 9
3.4 数据导入描述 12
3.5 传播云图特征对比 13
4 数据分析与讨论 16
4.1 点度中心性对比分析 16
4.2 中间中心性对比分析 17
4.3 接近中心性对比分析 18
4.4 传播演进对比分析 19
4.4.1 “七问雾霾”传播演进分析 20
4.4.2 “邢台暴雨”传播演进分析 21
4.4.3 对比分析 23
4.5 本章小结 24
5 结论与展望 25
5.1 结论 25
5.2 展望 26
参考文献 27
致谢 29
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