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Research On Phase Transition In The Process Of Information Dissemination

Posted on:2022-08-18Degree:MasterType:Thesis
Country:ChinaCandidate:X L WeiFull Text:PDF
GTID:2518306515464224Subject:Computer application technology
Abstract/Summary:PDF Full Text Request
The phenomenon of liquid solidification and magnetization is a physical phase transition that can be found everywhere in reality,and these two typical examples represent the transition from disordered to ordered states.Such phase transitions do not occur only in physical systems,but also in a series of complex systems,such as biological systems and social systems.In the present "hyperlinked" society of human-machine bonding,disordered individuals emerge order phenomena that become the focus of a range of scientific investigations in the present sociological,economic,as well as complex sciences.In social systems,when the social belief consensus is formed,people come together to complete a huge event on the Internet because of the influence of the common belief.For example,human meat search events versus crowdsourcing events,among others.Not only that,when people's common interests are violated,large March events are elicited,such as the occurrence of countless March demonstrations in other countries.In this process,the dissemination of information plays a crucial role.Information carries not only the content of the information,but also the emotional tendencies of the information providers.Information contains a lot of factors that influence people's behavior,that is,the transmission of information induces various phase transitions in social systems.The study of phase transformation in social systems from the perspective of information dissemination is an entry point for the research presented in this paper.In this paper,the work done mainly contains the following four parts: first,to construct a new network model based on the properties of BA scale-free network,and the features between human and human relationships;second,to introduce new individual states and propose new information transmission model based on the classical transmission model;third,to propose two kinds of information transformation processes from a global to individual perspective;forth,The phenomenon of group emotional transformation has been studied based on the idea that people make decisions more often than relying on their own rationality and more from the perspective of the state of the percept through the affective factors carried in the message.The specific situation is as follows.(1)From the viewpoint of information propagation,two kinds of information transformation processes based on global network information density threshold and individual information entropy threshold are proposed.Social cumulative effects and individual forgetting properties were introduced,and two different stage information transmission models were constructed;three different types of closeness relationships were introduced,and higher-order networks with these three relationships were constructed.Based on such a network,the state phenomenon of scale is discussed when information spreads on different networks then different networks of intimacy are activated,and information is propagated in such networks after breaking through the threshold of global network information density or individual information entropy.From the theoretical analysis,the thresholds of information propagation in different closeness networks were obtained.The simulated experimental results and the real events are compared,and it is found that some information exists when the propagation scale exhibits a phasic phenomenon,and this study is verified.The experimental results further point out that the information phase change will cause the phenomenon of the phase change of the network structure,that is,the information propagation space is enlarged with the continuous expansion of the scale of information propagation.(2)Based on the hypothesis that information carries an affective predisposition,it is proposed that there is an inter-individual attraction based on affective resonance among individuals.Based on the groups in the March demonstrations without obvious network structure,a group without network structure is constructed.According to the groups in the human meat search event show obvious network structure,a group in which emotion and network structure co evolved was constructed.For the group without network structure,the group emotional transition threshold was analyzed to verify the phenomenon of group emotional polarization.For the group in which emotion co evolved with the network structure,a model of network evolution based on node attractiveness was established,and the process and conditions of phase change of group emotion were obtained based on network evolution analysis.By contrasting the simulation results with the real data,the phase transition of group emotions is verified,and further validation of the group phenomenon of " Birds of a feather flock together",which verifies the co evolution of group emotions and group network structure.
Keywords/Search Tags:High-order network, Co-evolutionary network, The phase transition of information, The phase transition of group emotion
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