Pitman sampling formula and an empirical study of choice behavior

Por • 26 jul, 2017 • Sección: Ambiente

Masato Hisakado, Fumiaki Sano, Shintaro Mori

Abstract: This study discusses choice behavior using a voting model in which voters can obtain information from a finite number r  of previous voters. Voters vote for a candidate with a probability proportional to the previous vote ratio, which is visible to the voters. We obtain Pitman sampling formula as the equilibrium distribution of r votes. We present the model as a process of making posts on a bulletin board system, 2ch.net, where users can choose one of many threads to create a post. We explore how this choice depends on the last r  posts and the distribution of r  posts across threads. We conclude that the posting process is described by our voting model for a small r  , which might correspond to the time horizon of users’ response.

arXiv:1707.07466v1 [physics.soc-ph]

Physics and Society (physics.soc-ph); Social and Information Networks (cs.SI); Data Analysis, Statistics and Probability (physics.data-an)

Post to Twitter

Escribe un comentario