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The Metabolism and Growth of Web Forums
1,2,3 4 1
Lingfei Wu , Jiang Zhang *, Min Zhao
1 Baidu Inc., Baidu Campus, Haidian District, Beijing, P. R. China, 2 School of Human Evolution and Social Change, Arizona State University, Tempe, Arizona, United States
of America, 3 Center for the Study of Institutional Diversity, Arizona State University, Tempe, Arizona, United States of America, 4 School of Systems Science, Beijing
Normal University, Beijing, P. R. China
Abstract
We view web forums as virtual living organisms feeding on user’s clicks and investigate how they grow at the expense of
clickstreams. We find that PV (the number of page views in a given time period) and UV (the number of unique visitors in
t t
the time period) of the studied forums satisfy the law of the allometric growth, i.e., PV h
t *UV . We construct clickstream
t
networks and explain the observed temporal dynamics of networks by the interactions between nodes. We describe the
transportation of clickstreams using the function D c
i *T , in which Ti is the total amount of clickstreams passing through
i
node i and Di is the amount of the clickstreams dissipated from i to the environment. It turns out that c, an indicator for the
efficiency of network di
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