64 citations · 452 across the 47 of their papers we have counts for
15 papers · 1 filter
Information cascade on networks and phase transitions
Masato Hisakado, Kazuaki Nakayama, Shintaro Mori
Herein, we consider a voting model for information cascades on several types of networks -- a random graph, the Barabási-Albert(BA) model, and lattice networks -- by using one para…
Optimal Learning Dynamics of Multi Agents in Restless Multiarmed Bandit Game
Kazuaki Nakayama, Ryuzo Nakamura, Masato Hisakado +1
Social learning is learning through the observation of or interaction with other individuals; it is critical in the understanding of the collective behaviors of humans in social ph…
A voter model on networks and multivariate beta distribution
Shintaro Mori, Masato Hisakado, Kazuaki Nakayama
In elections, the vote shares or turnout rates show a strong spatial correlation. The logarithmic decay with distance suggests that a 2D noisy diffusive equation describes the syst…
The Pitman-Yor process and an empirical study of choice behavior
Masato Hisakado, Fumiaki Sano, Shintaro Mori
This study discusses choice behavior using a voting model in which voters can obtain information from a finite number of previous voters. Voters vote for a candidate with a pro…
Mean Field Voter Model of Election to the House of Representatives in Japan
Fumiaki Sano, Masato Hisakado, Shintaro Mori
In this study, we propose a mechanical model of a plurality election based on a mean field voter model. We assume that there are three candidates in each electoral district, i.e.,…
Phase transition of social learning collectives and "Echo chamber"
Shintaro Mori, Kazuaki Nakayama, Masato Hisakado
An "Echo chamber" is the state of social learning agents whose performances are deteriorated by excessive observation of others. We understand this to be the collective behavior of…