社會網絡上的觀點傳播:建模與分析
發(fā)布時間:2021-08-03 02:31
傳播過程的建模與分析,由于其在生物學、經濟學和社會科學等領域的廣泛應用受到眾多研究者的關注與青睞。目前,大多數傳播問題的研究主要集中在只具有合作交互關系的網絡上。通常,觀點的傳播會受到個體之間交互形式的影響。本文著重研究觀點在符號網絡上傳播的建模與分析。符號網絡可以有效地刻畫社會網絡中個體之間的合作(信任的/友好的)與對抗(不信任的/敵對的)交互。主要研究內容如下:1.研究了多個相互競爭的觀點在符號網絡上的傳播問題。網絡中的個體改變自己觀點的方式是以一定概率堅持自己前一時刻的觀點或隨機選擇他/她的一個鄰居來確定自己的觀點。如果個體所選擇的鄰居是以合作方式與其交互的,他/她將采納這個鄰居的觀點;如果鄰居與其是對抗交互的,個體則以非均勻概率或均勻概率從多個相互競爭的觀點中選擇一個與其鄰居不同的觀點。根據上述更新規(guī)則,我們提出了兩個傳播模型。為了分析非均勻概率情形下的傳播模型,我們構造了一個新的網絡,并說明了它與符號網絡之間的聯系。利用兩個網絡之間的聯系,給出了該傳播模型收斂的充分條件。對于均勻概率情形下的傳播模型,我們給出了在網絡拓撲方面該模型收斂的充分必要條件。另外,如果符號網絡是結構平...
【文章來源】:西安電子科技大學陜西省 211工程院校 教育部直屬院校
【文章頁數】:102 頁
【學位級別】:博士
【文章目錄】:
ABSTRACT
摘要
Chapter 1 Introduction
1.1 Background
1.2 Motivation
1.3 Literature Review
1.3.1 Propagation Problem
1.3.2 Competitive Diffusion Problem
1.4 Organization and Contribution of the Thesis
Chapter 2 Preliminaries
2.1 Notation and Special Matrices
2.2 Matrix Theory
2.3 Graph Theory
2.3.1 Signed Graph
2.3.2 Main Lemmas
Chapter 3 Competing Opinion Propagation over Signed Networks: Convergence Analysis
3.1 Introduction
3.2 Model Description
3.3 Main Results
3.3.1 Convergence Analysis of the Propagation Models
3.3.2 Further Results over Structurally Balanced Networks
3.4 Simulations
3.5 Summary
Chapter 4 Competitive Diffusion in Signed Networks: A Game-Theoretic Perspective
4.1 Introduction
4.2 Problem Statement
4.2.1 Propagation Model with Stubborn Individuals
4.2.2 Game Model
4.3 Main Results
4.3.1 Nash Equilibrium of the Game
4.3.2 Structurally Balanced Networks
4.4 Simulations
4.5 Summary
Chapter 5 Binary Opinion Propagation over Signed Networks: Equilibrium Analysis
5.1 Introduction
5.2 Model Description
5.2.1 An Approximation to the Discrete SIS Model
5.2.2 The Propagation Model
5.3 Main Results
5.3.1 The Analysis on Zero Equilibrium of Propagation Model
5.3.2 The Analysis on Nonzero Equilibrium of Propagation Model
5.4 Simulations
5.5 Summary
Chapter 6 Conclusions and Future Research
6.1 Conclusions
6.2 Future Work
Reference
Acknowledgement
Biography
本文編號:3318745
【文章來源】:西安電子科技大學陜西省 211工程院校 教育部直屬院校
【文章頁數】:102 頁
【學位級別】:博士
【文章目錄】:
ABSTRACT
摘要
Chapter 1 Introduction
1.1 Background
1.2 Motivation
1.3 Literature Review
1.3.1 Propagation Problem
1.3.2 Competitive Diffusion Problem
1.4 Organization and Contribution of the Thesis
Chapter 2 Preliminaries
2.1 Notation and Special Matrices
2.2 Matrix Theory
2.3 Graph Theory
2.3.1 Signed Graph
2.3.2 Main Lemmas
Chapter 3 Competing Opinion Propagation over Signed Networks: Convergence Analysis
3.1 Introduction
3.2 Model Description
3.3 Main Results
3.3.1 Convergence Analysis of the Propagation Models
3.3.2 Further Results over Structurally Balanced Networks
3.4 Simulations
3.5 Summary
Chapter 4 Competitive Diffusion in Signed Networks: A Game-Theoretic Perspective
4.1 Introduction
4.2 Problem Statement
4.2.1 Propagation Model with Stubborn Individuals
4.2.2 Game Model
4.3 Main Results
4.3.1 Nash Equilibrium of the Game
4.3.2 Structurally Balanced Networks
4.4 Simulations
4.5 Summary
Chapter 5 Binary Opinion Propagation over Signed Networks: Equilibrium Analysis
5.1 Introduction
5.2 Model Description
5.2.1 An Approximation to the Discrete SIS Model
5.2.2 The Propagation Model
5.3 Main Results
5.3.1 The Analysis on Zero Equilibrium of Propagation Model
5.3.2 The Analysis on Nonzero Equilibrium of Propagation Model
5.4 Simulations
5.5 Summary
Chapter 6 Conclusions and Future Research
6.1 Conclusions
6.2 Future Work
Reference
Acknowledgement
Biography
本文編號:3318745
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