Heterogenous human dynamics in intra- and inter-day time scales

Wang, Peng; Lei, Ting; Yeung, Chi Ho; Wang, Bing-Hong

doi:10.1209/0295-5075/94/18005

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Journal article

Heterogenous human dynamics in intra- and inter-day time scales

Wang, Peng Department of Modern Physics, University of Science and Technology of China, Hefei, China - Department of Physics, University of Fribourg, Switzerland
Lei, Ting Department of Physics, University of Fribourg, Switzerland
Yeung, Chi Ho Department of Physics, University of Fribourg, Switzerland
Wang, Bing-Hong Department of Modern Physics, University of Science and Technology of China, Hefei, China - The Research Center for Complex System Science, University of Shanghai for Science and Technology, China

05.04.2011

Published in:

Europhysics Letters. - 2011, vol. 94, no. 1, p. 18005

English In this paper, we study two large data sets containing the information of two different human behaviors: blog-posting and wiki-revising. In both cases, the interevent time distributions decay as power laws at both individual and population level. Unlike previous studies, we put emphasis on time scales and obtain heterogeneous decay exponents in the intra- and inter-day range for the same dataset. Moreover, we observe opposite trend of exponents in relation to individual Activity. Further investigations show that the presence of intra-day activities mask the correlation between consecutive inter-day activities and lead to an underestimate of Memory, which explain the contradicting results in recent empirical studies. Removal of data in intra-day range reveals the high values of Memory and lead us to convergent results between wiki-revising and blog-posting.

Faculty

Faculté des sciences et de médecine

Department

Département de Physique

Language