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A stochastic model of tweet diffusion on the Twitter network

Kawamoto, Tatsuro - In: Physica A: Statistical Mechanics and its Applications 392 (2013) 16, pp. 3470-3475

We introduce a stochastic model which describes the information diffusion on the network of a popular web service, Twitter. Restricting our attention to the daily diffusion from a popular account, we model the information diffusion as a random multiplicative process. We justify our model by...

Persistent link: https://www.econbiz.de/10010873820

A network approach based on cliques

Fadigas, I.S.; Pereira, H.B.B. - In: Physica A: Statistical Mechanics and its Applications 392 (2013) 10, pp. 2576-2587

The characterization of complex networks is a procedure that is currently found in several research studies. Nevertheless, few studies present a discussion on networks in which the basic element is a clique. In this paper, we propose an approach based on a network of cliques. This approach...

Persistent link: https://www.econbiz.de/10010874035

Skeleton of weighted social network

Zhang, X.; Zhu, J. - In: Physica A: Statistical Mechanics and its Applications 392 (2013) 6, pp. 1547-1556

In the literature of social networks, understanding topological structure is an important scientific issue. In this paper, we construct a network from mobile phone call records and use the cumulative number of calls as a measure of the weight of a social tie. We extract skeletons from the...

Persistent link: https://www.econbiz.de/10010874053

Effects of density of infected population to the spreading of HIV epidemic in communities

Mukwembi, Simon - In: Physica A: Statistical Mechanics and its Applications 390 (2011) 21, pp. 3915-3921

We present a dynamical model for the spread of HIV in a finite discrete population of size n represented by the set V. The model takes into account the structure of the sexual network, the density of infected population in each individual’s sexual partners, and a reasonable amount of the...

Persistent link: https://www.econbiz.de/10010874153

Viral spreading of daily information in online social networks

Kawamoto, Tatsuro; Hatano, Naomichi - In: Physica A: Statistical Mechanics and its Applications 406 (2014) C, pp. 34-41

We explain a possible mechanism of an information spreading on a network which spreads extremely far from a seed node, namely the viral spreading. On the basis of a model of the information spreading in an online social network, in which the dynamics is expressed as a random multiplicative...

Persistent link: https://www.econbiz.de/10010874517

Causal Mechanism in Social Network Sites under Consideration of the Social Capital Theory

Sander, Tom; Teh, Phoey Lee - Keleti Károly Gazdasági Kar, Óbudai Egyetem

The paper gives a theoretical framework for social capital theory under the consideration of social media. Three components exist to explain the causal mechanism in social network sites under the consideration of the social capital theory, which is the technological design, institutional design...

Persistent link: https://www.econbiz.de/10010878324

(English) Notes for a research project on the relationship between teenagers and scientific information on the Internet (Italiano) Appunti per un progetto di ricerca sul rapporto f...

Castellani, Tommaso; Valente, Adriana - Istituto di Ricerca sulla Popolazione e le Politiche … - 2013

(English) In this working paper we have collected some working notes for the development of an interdisciplinary research on the interaction of Italian teenagers with the scientific information available on the Internet. Despite Internet results to be the main instrument of information of...

Persistent link: https://www.econbiz.de/10010878565

Spatial Patterns of Technology Diusion: The Case of Hybrid Rice in Bangladesh

Ward, Patrick S.; Pede, Valerien O. - Agricultural and Applied Economics Association - AAEA - 2013

In this paper we demonstrate a method for measuring the eect of spatial interactions on the adoption of hybrid rice using a unique, nationally-representative data set from Bangladesh. Based on resulst from a generalized spatial two-stage least squares estimation, we have shown that neighbor...

Persistent link: https://www.econbiz.de/10010880933

From fiction to fact: the impact of CEO social networks

Kirchmaier, Thomas; Stathopoulos, Konstantinos - London School of Economics (LSE) - 2008

This paper investigates the relationship between a CEO’s social network, firm identity, and firm performance. There are two competing theories that predict contradictory outcomes. Following social network theory, one would expect a positive relation between social networks and firm...

Persistent link: https://www.econbiz.de/10010884592

Self-employment Choices of Rural Migrants in China: Distance and Social Network

Zhou, Yexin; Chen, Mo; Ye, Jingyi - Stockholm China Economic Research Institute, … - 2014

In Chinese cities, rural migrants on average are less educated and poorer than the urban locals. Migration is costly …, especially for those who choose to move to provinces faraway from their hometowns. A larger fraction of the rural migrants are … self-employed than that of the urban locals. The social contacts of migrants in the host cities often help them to find …

Persistent link: https://www.econbiz.de/10010888622