Fang Wu and Bernardo A. Huberman
Information Dynamics Laboratory, HP Labs
The subject of collective attention is central to an
information age where millions of people are inundated with daily
messages. It is thus of interest to understand how attention to
novel items propagates and eventually fades among large populations.
We have analyzed the dynamics of collective attention among one
million users of an interactive website –digg.com- devoted to
thousands of novel news stories. The observations can be described
by a dynamical model characterized by a single novelty factor. Our
measurements indicate that novelty within groups decays with a
stretched-exponential law, suggesting the existence of a natural
time scale over which attention fades.
Proc. Natl. Acad. Sci. (USA), Vol. 105, 17599 (2007)
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