The structured backbone of temporal social ties

Teruyoshi Kobayashi, Taro Takaguchi and Alain Barrat ()
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Taro Takaguchi: Toda
Alain Barrat: Aix Marseille Univ, Université de Toulon, CNRS, CPT

Nature Communications, 2019, vol. 10, issue 1, 1-11

Abstract: Abstract In many data sets, information on the structure and temporality of a system coexists with noise and non-essential elements. In networked systems for instance, some edges might be non-essential or exist only by chance. Filtering them out and extracting a set of relevant connections is a non-trivial task. Moreover, mehods put forward until now do not deal with time-resolved network data, which have become increasingly available. Here we develop a method for filtering temporal network data, by defining an adequate temporal null model that allows us to identify pairs of nodes having more interactions than expected given their activities: the significant ties. Moreover, our method can assign a significance to complex structures such as triads of simultaneous interactions, an impossible task for methods based on static representations. Our results hint at ways to represent temporal networks for use in data-driven models.

Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-018-08160-3

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DOI: 10.1038/s41467-018-08160-3

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