تحلیل شبکه‌های پیچیده ساختار انجمن بازار سیاه دارک‌نت

Introduction 7 Darknet black markets 7 Black market community as a network 7 Physical analysis of networks 8 Data extraction 9 Market crawling 9 Forum overview 9 Data extraction 11 Communication networks 11 Expertise networks 12 Basic complex network properties 15 Network types 15 Degree 15 Power-law degree distributions 16 Assortativity 18 Clustering 21 Undirected case 21 Directed case 21 Time stamps 22 Pattern detection methods 23 Analytical maximum-likelihood method 23 Undirected networks 23 Directed networks 24 Bipartite networks 24 Unbiased sampling method 25 Results 27 Analytical approach 27 Nearest neighbour degree 27 Clustering coefficient 32 Sampling approach 36 Nearest neighbour degree 36 Clustering coefficient 38 Network growth analysis 38 Directed graphs 38 Bipartite graphs 40 Conclusions and Discussion 43 Conclusions 43 Conclusions from the analytical approach 44 Conclusions from the sampling approach 44 Discussion 45