James P. Gleeson, Davide Cellai, Jukka-Pekka Onnela, Mason A. Porter, Felix Reed-Tsochas
Published online before print July 7, 2014 doi: 10.1073/pnas.1313895111 PNAS July 7, 2014
View Journal Article / Working PaperHuman activities increasingly take place in online environments, providing novel opportunities for relating individual behaviors to population-level outcomes. This paper introduces a simple generative model for the collective behavior of millions of social networking site users who are deciding between different software applications.