| With the constant popularizing of the network technologies and updating of the relevant Internet applications, various Internet-based applications and services are emerging endlessly. The advent of Micro blog symbolizes the arrival of individual-Internet era. The feature of plebification and real-time make Micro blog become the most powerful lethality media which could release news far ahead of traditional media and governments. In face of the thoroughly new network environment as well as complex volatile net-mediated public sentiment, it has great theoretical value and practical significance to master the communication tools and its characteristics and study how to control and guide public opinion through analyzing the structure of the Internet in this new media era. This thesis mainly researched on the growing network modal of net-mediated public sentiment and the characteristics of its network structure in Micro blog network. By using complex network analysis tools, drew a Micro blog network diagram of net-mediated public sentiment; proposed a strategy for controlling negative public sentiment information disseminateand gave some suggestions about leading the development of the net-mediated public sentiment and validated the modal with practice cases.At first, this thesis reviewed overseas and domestic researches about the control of net-mediated public sentiment in networks gave some statements about relevant theory of BA scale-free networks’research and some main analysis indexes of the complex network. After compared and analyzed the growing modal of BBS and Micro blog, this thesis demonstrated the growing regulation of the complex network as well as the techniques and tools used in analyzing and stimulating complex network and net-mediated public sentiment in Micro blog.Furthermore, theoretically based one growing modal of BA scale-free networks, Began with analyzing Micro blog users’ behavior characteristic, this thesis introduced three behavior features of Micro blog users and three main features of public sentiment transmission in Micro blog. According to the growing characteristics of BA scale-free networks combined with the features of public sentiment transmission and the user’s behavior characteristics, this complex network growing models of net-mediated public sentiment in Micro blog was built, from three aspects of growth, bordered and randomly bordered. Then by running Matlab simulation model, the scale-free characteristics of this Micro blog network growth model were verified.At last, taking net-mediated public sentiment hot topic data that randomly extracted from a particular Micro blog, as sample, this thesis abstracted, analyzed, cleaned and compiled the data, finally obtained the related data which reflect the user’s comment and forwarding information in reality. By taking advantage of complex network analyzing tools "Gephi", this thesis built a network diagram of Micro blog net-mediated public sentiment, from this diagram the Micro blog user’s relationship constitution and the network construction under one particular hot topic could be intuitively observed. Also, according to the above results, some strategies and suggestions were proposed to guide and control the transmission of net-mediated public sentiment in Micro blog. Finally this thesis tests the consistency of practical database with the theoretical analysis method of simulating model by using Matlab. |
