Empirical analysis of collective human behavior for extraordinary events in blogosphere

Details Empirical analysis of collective human behavior for extraordinary events in blogosphere Empirical analysis of collective human behavior for extraordinary events in blogosphere

2011-07-24

arxiv.org/abs/1107.4730v2

Physics

Physics and Society

11 pages, 18 figures

Scientific paper

To explain collective human behavior in blogosphere, we survey more than 1.8 billion entries and observe statistical properties of word appearance. We first estimate the basic properties of number fluctuation of ordinary words that appear almost uniformly. Then, we focus on those words that show dynamic growth with a tendency to diverge on a certain day, and also news words, that are typical keywords for natural disasters, grow suddenly with the occurrence of events and decay gradually with time. In both cases, the functional forms of growth and decay are generally approximated by power laws with exponents around -1 for a period of about 80 days. Our empirical analysis can be applied for the prediction of word frequency in blogosphere.

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