本文選題：復(fù)雜網(wǎng)絡(luò)理論 + 人類活動模式��； 參考：《北京郵電大學(xué)》2012年博士論文

【摘要】：本文的主要工作是研究基于復(fù)雜網(wǎng)絡(luò)的人類活動模式和意見動力學(xué)對傳播過程的影響。本文的傳播過程包含了兩種傳播過程,傳染病傳播過程和手機(jī)短信息傳播過程。無論是傳染病動力學(xué)還是信息動力學(xué),都是國家極為重視的科研課題。這兩種傳播過程都已經(jīng)不再是單個(gè)學(xué)科的研究對象而是擴(kuò)展為多學(xué)科交叉研究的對象。而復(fù)雜網(wǎng)絡(luò)理論在這種多學(xué)科交叉研究中擁有極大的優(yōu)越性。更重要的是,相比經(jīng)典的傳播模型中的均勻混合人群的假設(shè),復(fù)雜網(wǎng)絡(luò)能夠更好地體現(xiàn)出真實(shí)社會網(wǎng)絡(luò)所擁有的統(tǒng)計(jì)特性。因此,把復(fù)雜網(wǎng)絡(luò)理論和傳播模型相結(jié)合已經(jīng)成為研究傳播過程的主流趨勢。有鑒于此,本文從理論和仿真兩個(gè)方面在人類活動模式和意見動力學(xué)對傳播過程的影響方面進(jìn)行了探索性研究。 本文的主要內(nèi)容為：1)考慮如艾滋病和乙型病毒性肝炎等傳染病的無癥狀感染特性進(jìn)而提出了一個(gè)新的傳染病模型——A-SIS模型。由于此類無癥狀感染特性的存在,很多感染個(gè)體認(rèn)為他們是健康的,而實(shí)際上他們已經(jīng)無癥狀地感染了某種傳染病。因此,在這種情況下,就需要對個(gè)體的感染意識狀態(tài)和物理狀態(tài)進(jìn)行區(qū)分,而經(jīng)典傳染病模型中并未考慮。所以我們提出這個(gè)模型來研究泊松分布和胖尾分布這兩種人類行為模式傳染病傳播過程的影響。研究發(fā)現(xiàn),當(dāng)這兩種人類體檢行為模式具有相同的體檢頻率時(shí),泊松分布的體檢模式比胖尾分布的體檢模式在控制和消除傳染病的傳播上更為有效。2)把A-SIS模型和一個(gè)基于社會影響理論的意見動力學(xué)模型結(jié)合在一起,研究與傳染病相關(guān)的意見動力學(xué)對傳染病傳播的影響。意見動力學(xué)的產(chǎn)物對那些已經(jīng)知道自己感染狀態(tài)的無癥狀感染個(gè)體的影響可能不僅僅只是降低他們的傳播概率,同樣也可以增加他們的傳播概率。這個(gè)假設(shè)在傳染病動力學(xué)、意見動力學(xué)和人類行為變化的交互作用的建模研究中很少被考慮到。研究發(fā)現(xiàn),當(dāng)存在與傳染病相關(guān)的意見動力學(xué)時(shí),較高的個(gè)體行為隨機(jī)性在增加傳染病流行程度感的同時(shí)也會讓感染者面臨較低的社會歧視。而且,如果正而的外界的全局影響超過一個(gè)臨界值時(shí),通過意見動力學(xué)可以完全消除傳染病。3)比較了短信息在無標(biāo)度網(wǎng)絡(luò)、小世界網(wǎng)絡(luò)和實(shí)際的短信息網(wǎng)絡(luò)三種網(wǎng)絡(luò)中的傳播過程,尋找影響短信息傳播的因素。發(fā)現(xiàn)網(wǎng)絡(luò)拓?fù)浣Y(jié)構(gòu)和手機(jī)用戶的轉(zhuǎn)發(fā)短信行為均會影響短信息傳播過程。在無標(biāo)度網(wǎng)絡(luò)中短信息傳播速率快于小世界網(wǎng)絡(luò)和實(shí)際的短信息網(wǎng)絡(luò),而無標(biāo)度網(wǎng)絡(luò)的短信息壽命較小世界網(wǎng)絡(luò)和實(shí)際的短信息網(wǎng)絡(luò)短；網(wǎng)絡(luò)中手機(jī)用戶的轉(zhuǎn)發(fā)短信行為明顯影響短信息的傳播過程；同時(shí)還發(fā)現(xiàn)短信息壽命與網(wǎng)絡(luò)直徑有關(guān)。
[Abstract]:The main work of this paper is to study the influence of human activity model and opinion dynamics on the propagation process based on complex networks. The transmission process of this paper includes two transmission processes, infectious disease transmission and mobile phone short message transmission. Whether it is infectious disease dynamics or information dynamics, it is a scientific research subject that the country attaches great importance to. These two communication processes are no longer the research object of a single discipline, but are expanded to a multidisciplinary research object. The theory of complex network has great superiority in this interdisciplinary research. More importantly, compared with the hypothesis of homogeneous mixed population in the classical propagation model, the complex network can better reflect the statistical characteristics of the real social network. Therefore, the combination of complex network theory and propagation model has become the main trend in the research of communication process. In view of this, this paper makes an exploratory study on the influence of human activity mode and opinion dynamics on the propagation process from the aspects of theory and simulation. The main content of this paper is: (1) considering the asymptomatic infection characteristics of infectious diseases such as AIDS and hepatitis B, a new infectious disease model, A-SIS model, is proposed. Because of the nature of such asymptomatic infections, many infected individuals think they are healthy when in fact they are asymptomatic infected with some infectious disease. Therefore, in this case, it is necessary to distinguish the infection consciousness state and the physical state of the individual, but the classical infectious disease model is not considered. So we propose this model to study the effects of Poisson distribution and fat-tailed distribution on the transmission of infectious diseases. The study found that when the two human physical examination behavior patterns have the same frequency of physical examination, The physical examination model of Poisson distribution is more effective in controlling and eliminating the spread of infectious diseases than that of fat-tailed distribution. It combines A-SIS model with an opinion dynamics model based on social impact theory. To study the influence of opinion dynamics related to infectious diseases on the transmission of infectious diseases. The effect of the product of opinion dynamics on asymptomatic infected individuals who already know their infection status may not only reduce their transmission probability, but also increase their transmission probability. This hypothesis is rarely taken into account in modeling the interactions of infectious disease dynamics, opinion dynamics and human behavior changes. The study found that when there is a dynamics of opinion related to infectious diseases, the higher randomness of individual behavior not only increases the prevalence of infectious diseases, but also makes the infected people face lower social discrimination. Moreover, if the positive external global influence exceeds a critical value, the infectious disease. 3 can be eliminated completely by means of opinion dynamics.) the comparison of short messages in scale-free networks is made. The propagation process of small world network and actual short message network is discussed to find the factors that affect short message transmission. It is found that both the network topology and the forwarding behavior of mobile phone users will affect the process of short message transmission. The propagation rate of short message in scale-free network is faster than that in small world network and actual short message network, while the short message life of scale free network is shorter than that of small world network and actual short message network. The behavior of transmitting short messages by mobile phone users in the network obviously affects the transmission process of short messages, and it is also found that the lifetime of short messages is related to the diameter of the network.
【學(xué)位授予單位】：北京郵電大學(xué)
【學(xué)位級別】：博士
【學(xué)位授予年份】：2012
【分類號】：R312;O157.5

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