具有多种复合机制的信息传播模型研究

发布时间：2018-05-03 22:37

本文选题：社交网络 + 谣言传播　；参考：《昆明理工大学》2017年硕士论文

【摘要】：近几年以来人们对社交网络信息的获取和传递越来越依赖于网络,这其中的改变离不开社交网络的迅猛发展。大到国外最大的社交网站Facebook、MySpace等,小到国内时下最流行的微博,微信等,通过这种主流的网络媒体平台,用户之间可以相互实现转发、分享信息。社交网络正以其独特的传播优势和强大的影响力,成为了时下拥有巨大社会影响力和舆论号召力的最流行的重要传播工具。社交网络在方便人类的同时,也产生了一些社会问题,一些虚假的信息通过网络传播更加肆意猖獗,这不仅严重威胁着社会的稳定而且影响着人类正常的市场经济发展。因此,研究谣言信息在社交网络中的传播规律是一大热点。本文分析了社交网络中的信息传播特点并介绍了常见的信息传播模型与网络模型。研究谣言传递,其中传统的传染病动力模型是重要方法之一,但是在前期研究的过程中大多都是对单个因素对谣言传播的影响研究,但实际谣言的传递会受到多个因素共同的影响。基于此本文在传统的病毒SIR信息传播模型的基础上进行修正,引入了一个潜伏状态节点,并且在谣言传播状态节点转变到潜伏状态节点过程中引入两个函数,一个是兴趣衰减机制函数,一个是社会加强机制函数。最终构建了一个ISPR谣言信息传播模型。然后对构建的ISPR模型推导出动力学演化方程组,接着使用Matlab和Python内的网络包对其进行仿真,分析这两个机制对谣言信息传播范围的影响。最终得出谣言传播与兴趣衰减呈现负反馈的关系,而与社交加强机制呈现正反馈的关系,并且发现谣言的传播范围大小并不是单调递增的,而是呈现先增后减的趋势。
[Abstract]:In recent years, people rely more and more on the network to obtain and transmit the information of social network, which can not be changed without the rapid development of social network. From Facebook MySpace, the largest social networking site abroad, to Weibo and WeChat, the most popular social networking sites in China, users can share information with each other through this mainstream network media platform. With its unique communication advantage and powerful influence, social network has become the most popular and important communication tool with great social influence and public opinion appeal. Social network not only facilitates human beings, but also produces some social problems, some false information spread through the network more rampant, which not only seriously threatens the stability of society but also affects the normal development of human market economy. Therefore, it is a hot topic to study the spreading rule of rumour information in social network. This paper analyzes the characteristics of information transmission in social networks and introduces common information dissemination models and network models. The traditional infectious disease dynamic model is one of the important methods to study rumor transmission, but in the process of previous research, it is mostly about the influence of single factor on rumor transmission. But the transmission of actual rumors will be affected by a number of factors. Based on this, a latent state node is introduced based on the traditional virus SIR information transmission model, and two functions are introduced in the process of transferring the rumour spreading state node to the latent state node. One is the interest attenuation mechanism function, the other is the social strengthening mechanism function. Finally, a ISPR rumor information dissemination model is constructed. Then the dynamic evolution equations are derived from the constructed ISPR model. Then the network packets in Matlab and Python are simulated to analyze the influence of these two mechanisms on the spread range of rumor information. Finally, it is concluded that the relationship between rumor spread and interest attenuation is negative, and that with social strengthening mechanism is positive feedback, and it is found that the spread range of rumor is not monotonous increasing, but showing a trend of first increasing and then decreasing.
【学位授予单位】：昆明理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：G206;TP393.09

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