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A Multiscale Survival Process for Modeling Human Activity Patterns.


ABSTRACT: Human activity plays a central role in understanding large-scale social dynamics. It is well documented that individual activity pattern follows bursty dynamics characterized by heavy-tailed interevent time distributions. Here we study a large-scale online chatting dataset consisting of 5,549,570 users, finding that individual activity pattern varies with timescales whereas existing models only approximate empirical observations within a limited timescale. We propose a novel approach that models the intensity rate of an individual triggering an activity. We demonstrate that the model precisely captures corresponding human dynamics across multiple timescales over five orders of magnitudes. Our model also allows extracting the population heterogeneity of activity patterns, characterized by a set of individual-specific ingredients. Integrating our approach with social interactions leads to a wide range of implications.

SUBMITTER: Zhang T 

PROVIDER: S-EPMC4811539 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature

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A Multiscale Survival Process for Modeling Human Activity Patterns.

Zhang Tianyang T   Cui Peng P   Song Chaoming C   Zhu Wenwu W   Yang Shiqiang S  

PloS one 20160329 3


Human activity plays a central role in understanding large-scale social dynamics. It is well documented that individual activity pattern follows bursty dynamics characterized by heavy-tailed interevent time distributions. Here we study a large-scale online chatting dataset consisting of 5,549,570 users, finding that individual activity pattern varies with timescales whereas existing models only approximate empirical observations within a limited timescale. We propose a novel approach that models  ...[more]

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