Modeling peer influence in time-varying networks

Matthias Wölbitsch, Simon Walk, Denis Helic

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Abstract

Recently, networks of user interactions in online systems gained a lot of interest from our research community. Such networks are characterized by complex bursty patterns of human user behavior. A lot of models for such networks are based on the activity-driven time-varying network framework, which was introduced in an effort to model human interaction networks more accurately. Mostly, these models rely on intrinsic activity patterns of individuals and disregard external influences. However, such external influences are important factors in more complex interaction scenarios. In this paper, we propose an activity-driven network model by introducing a peer influence mechanism into the network dynamics. In particular, we allow for active individuals to motivate their peers to become active as well. We examine the ramifications of this mechanism on the topological and activity-related properties of synthetically generated networks and reveal its complex influence on the underlying dynamics. As expected, our results show that peer influence has positive effects on formation of network communities. At the same time the changes in activity patterns suggest a complex response of the system to the peer influence mechanism. This interesting preliminary result opens interesting avenues for further research in the future. Our main contributions are (i) the specification of peer influence for an activity-driven network generator, and (ii) the analysis and discussion of the added peer influence mechanism on synthetic networks.

LanguageEnglish
Title of host publicationComplex Networks and Their Applications VI - Proceedings of Complex Networks 2017 (The 6th International Conference on Complex Networks and Their Applications)
PublisherSpringer Verlag Heidelberg
Pages353-364
Number of pages12
ISBN (Print)9783319721491
DOIs
StatusPublished - 1 Jan 2018
Event6th International Conference on Complex Networks and Their Applications, Complex Networks 2017 - Lyon, France
Duration: 29 Nov 20171 Dec 2017

Publication series

NameStudies in Computational Intelligence
Volume689
ISSN (Print)1860-949X

Conference

Conference6th International Conference on Complex Networks and Their Applications, Complex Networks 2017
CountryFrance
CityLyon
Period29/11/171/12/17

Fingerprint

Time varying networks
Online systems
Specifications

ASJC Scopus subject areas

  • Artificial Intelligence

Cite this

Wölbitsch, M., Walk, S., & Helic, D. (2018). Modeling peer influence in time-varying networks. In Complex Networks and Their Applications VI - Proceedings of Complex Networks 2017 (The 6th International Conference on Complex Networks and Their Applications) (pp. 353-364). (Studies in Computational Intelligence; Vol. 689). Springer Verlag Heidelberg. https://doi.org/10.1007/978-3-319-72150-7_29

Modeling peer influence in time-varying networks. / Wölbitsch, Matthias; Walk, Simon; Helic, Denis.

Complex Networks and Their Applications VI - Proceedings of Complex Networks 2017 (The 6th International Conference on Complex Networks and Their Applications). Springer Verlag Heidelberg, 2018. p. 353-364 (Studies in Computational Intelligence; Vol. 689).

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Wölbitsch, M, Walk, S & Helic, D 2018, Modeling peer influence in time-varying networks. in Complex Networks and Their Applications VI - Proceedings of Complex Networks 2017 (The 6th International Conference on Complex Networks and Their Applications). Studies in Computational Intelligence, vol. 689, Springer Verlag Heidelberg, pp. 353-364, 6th International Conference on Complex Networks and Their Applications, Complex Networks 2017, Lyon, France, 29/11/17. https://doi.org/10.1007/978-3-319-72150-7_29
Wölbitsch M, Walk S, Helic D. Modeling peer influence in time-varying networks. In Complex Networks and Their Applications VI - Proceedings of Complex Networks 2017 (The 6th International Conference on Complex Networks and Their Applications). Springer Verlag Heidelberg. 2018. p. 353-364. (Studies in Computational Intelligence). https://doi.org/10.1007/978-3-319-72150-7_29
Wölbitsch, Matthias ; Walk, Simon ; Helic, Denis. / Modeling peer influence in time-varying networks. Complex Networks and Their Applications VI - Proceedings of Complex Networks 2017 (The 6th International Conference on Complex Networks and Their Applications). Springer Verlag Heidelberg, 2018. pp. 353-364 (Studies in Computational Intelligence).
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