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Epidemics and dimensionality in hierarchical networks

Zheng, Da-Fang; Hui, P.M.; Trimper, Steffen; Zheng, Bo - In: Physica A: Statistical Mechanics and its Applications 352 (2005) 2, pp. 659-668

H>1, global spreading results regardless of the degree of homophily of the individuals forming a social circle. For H=1 …

Persistent link: https://www.econbiz.de/10010590520

Ordered community structure in networks

Gregory, Steve - In: Physica A: Statistical Mechanics and its Applications 391 (2012) 8, pp. 2752-2763

Community structure in networks is often a consequence of homophily, or assortative mixing, based on some attribute of …

Persistent link: https://www.econbiz.de/10010591520

What are Chinese talking about in hot weibos?

Li, Yuan; Gao, Haoyu; Yang, Mingmin; Guan, Wanqiu; Ma, … - In: Physica A: Statistical Mechanics and its Applications 419 (2015) C, pp. 546-557

show distinct posting and reposting behaviors, which partially reflect their indigenous cultures. Finally, homophily is …

Persistent link: https://www.econbiz.de/10011117816

Whether information network supplements friendship network

Miao, Lili; Zhang, Qian-Ming; Nie, Da-Cheng; Cai, Shi-Min - In: Physica A: Statistical Mechanics and its Applications 419 (2015) C, pp. 301-306

Homophily is a significant mechanism for link prediction in complex network, of which principle describes that people … has been utilized to reinforce similarity of taste for recommendation system whose basic idea is similar to homophily, yet … homophily. It can be found that the creation of friendship tightly associates with personal taste. Especially, the behavioral …

Persistent link: https://www.econbiz.de/10011117830

A spatial model for social networks

Wong, Ling Heng; Pattison, Philippa; Robins, Garry - In: Physica A: Statistical Mechanics and its Applications 360 (2006) 1, pp. 99-120

We study spatial embeddings of random graphs in which nodes are randomly distributed in geographical space. We let the edge probability between any two nodes to be dependent on the spatial distance between them and demonstrate that this model captures many generic properties of social networks,...

Persistent link: https://www.econbiz.de/10011063356

Cooperative networks overcoming defectors by social influence

Gomez Portillo, Ignacio - In: Physica A: Statistical Mechanics and its Applications 394 (2014) C, pp. 198-210

We address the cooperation problem in structured populations by considering the prisoner’s dilemma game as a metaphor of the social interactions between individuals with imitation capacity. We present a new strategy update rule called democratic weighted update where the individual’s...

Persistent link: https://www.econbiz.de/10010873822

Social influence promotes cooperation in the public goods game

Wu, Te; Fu, Feng; Dou, Puxuan; Wang, Long - In: Physica A: Statistical Mechanics and its Applications 413 (2014) C, pp. 86-93

Previous studies mainly consider the random selection pattern in which individuals randomly choose reference models from their neighbors for strategy updating. However, the random selection pattern is unable to capture all real world circumstances. We institute a spatial model to investigate the...

Persistent link: https://www.econbiz.de/10010906950

A novel opinion dynamics model based on expanded observation ranges and individuals’ social influences in social networks

Diao, Su-Meng; Liu, Yun; Zeng, Qing-An; Luo, Gui-Xun; … - In: Physica A: Statistical Mechanics and its Applications 415 (2014) C, pp. 220-228

In this paper, we propose an opinion dynamics model in order to investigate opinion evolution and interactions and the behavior of individuals. By introducing social influence and its feedback mechanism, the proposed model can highlight the heterogeneity of individuals and reproduce realistic...

Persistent link: https://www.econbiz.de/10010939932

Cultural evolution: The case of babies’ first names

Xi, Ning; Zhang, Zi-Ke; Zhang, Yi-Cheng; Ge, Zehui; She, Li - In: Physica A: Statistical Mechanics and its Applications 406 (2014) C, pp. 139-144

In social sciences, there is currently rare consensus on the underlying mechanism for cultural evolution, partially due to lack of suitable data. The evolution of first names of newborn babies offers a remarkable example for such researches. In this paper, we employ the historical data on baby...

Persistent link: https://www.econbiz.de/10010871954

The existence of negative absolute temperatures in Axelrod’s social influence model

Villegas-Febres, J.C.; Olivares-Rivas, W. - In: Physica A: Statistical Mechanics and its Applications 387 (2008) 14, pp. 3701-3707

We introduce the concept of temperature as an order parameter in the standard Axelrod’s social influence model. It is defined as the relation between suitably defined entropy and energy functions, T=(∂S/∂E)−1. We show that at the critical point, where the order/disorder transition...

Persistent link: https://www.econbiz.de/10011059238