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The effects of local and global link creation mechanisms on contagion processes unfolding on time-varying networks

The effects of local and global link creation mechanisms on contagion processes unfolding on time-varying networks

Sun, Kaiyuan, Ubaldi, Enrico, Zhang, Jie, Karsai, Marton and Perra, Nicola (2019) The effects of local and global link creation mechanisms on contagion processes unfolding on time-varying networks. In: Holme, Petter and Saramaki, Jari, (eds.) Temporal Network Theory. Computational Social Sciences . Springer, Cham, Switzerland, pp. 305-324. ISBN 978-3030234959 (doi:https://doi.org/10.1007/978-3-030-23495-9_16)

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25924 PERRA_Effects_Of_Local_And_Global_Link_Creation_Mechanisms_On_Contagion_Processes_(AAM)_2019.pdf - Accepted Version
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Abstract

Social closeness and popularity are key ingredients that shape the emergence and evolution of social connections over time. Social closeness captures local reinforcement mechanisms which are behind the formation of strong ties and communities. Popularity, on the other hand, describes global link formation dynamics which drive, among other things, hubs, weak ties and bridges between groups. In this chapter, we characterize how these mechanisms affect spreading processes taking place on time-varying networks. We study contagion phenomena unfolding on a family of artificial temporal networks. In particular, we revise four different variations of activity-driven networks that capture i) heterogeneity of activation patterns ii) popularity iii) the emergence of strong and weak ties iv) community structure. By means of analytical and numerical analyses we uncover a rich and process dependent phenomenology where the interplay between spreading phenomena and link formation mechanisms might either speed up or slow down the spreading

Item Type: Book Section
Uncontrolled Keywords: activity driven networks, epidemic modeling, dynamical processes on time-varying networks, time-varying networks models, popularity, social closeness
Subjects: H Social Sciences > H Social Sciences (General)
Faculty / Department / Research Group: Faculty of Business
Faculty of Business > Department of International Business & Economics
Faculty of Business > Networks and Urban Systems Centre (NUSC)
Faculty of Business > Networks and Urban Systems Centre (NUSC) > Centre for Business Network Analysis (CBNA)
Last Modified: 05 Nov 2019 10:12
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
Selected for GREAT 2019: None
URI: http://gala.gre.ac.uk/id/eprint/25924

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