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physics.soc-ph2010★ 13 cited
The Interacting Branching Process as a Simple Model of Innovation
Vishal Sood, Myléne Mathieu, Amer Shreim +2
We describe innovation in terms of a generalized branching process. Each new invention pairs with any existing one to produce a number of offspring, which is Poisson distributed wi…
physics.soc-ph2007★ 392 cited
Voter Models on Heterogeneous Networks
V. Sood, Tibor Antal, S. Redner
We study simple interacting particle systems on heterogeneous networks, including the voter model and the invasion process. These are both two-state models in which in an update ev…