312 citations · 1.9k across the 52 of their papers we have counts for
56 papers
An evolutionary origin of collective decision making in humans and machines
Guocheng Wang, Qi Su, Joshua B. Plotkin
Groups of individuals can solve collective problems more accurately than any single member, by aggregating their opinions. Recent theoretical work has identified individual-level r…
Prevalence and the rate of antigenic evolution are jointly determined in an eco-evolutionary SIR model
Daniel Gomez, Joshua B. Plotkin
Influenza A persists by continually changing the antigens that its host population recognizes. How fast it evolves and how many hosts it infects are not independent, because the im…
Competition drives excessive recruitment in collective search
Hyunjoong Kim, Gayashan Jayavilal, Joshua B Plotkin
Groups that search collectively often exploit what they find by recruiting: one member directs others to a site it has found. Recruitment raises the number of members foraging at a…
A model of local and global reciprocity
Mari Kawakatsu, Yohsuke Murase, Taylor A. Kessinger +1
We often decide how to treat friends based on observations of their past behavior, whereas actions toward strangers are typically guided by their public reputations. These two kind…
Hyperedge approximation for stochastic processes on higher-order networks
Anzhi Sheng, Alex McAvoy, Ye Tian +3
Graphs are a standard framework for describing dynamical processes shaped by pairwise interactions among agents. But many systems involve interactions in groups of three or more ag…
Generative artificial intelligence reduces social welfare through model collapse
Fabian Baumann, Erol Akçay, Joshua B. Plotkin
Generative artificial intelligence (genAI) is rapidly reshaping how knowledge and culture are produced and consumed. Yet generative models are vulnerable to model collapse: when tr…