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Understanding Polarization: Meanings, Measures, and Model Evaluation
Polarization is a topic of intense interest among social scientists, but there is significant disagreement regarding the character of the phenomenon and little understanding of underlying mechanics.… Expand
Evolution of communication with a spatialized genetic algorithm
We extend previous work by modeling evolution of communication using a spatialized genetic algorithm which recombines strategies purely locally. Here cellular automata are used as a spatialized… Expand
The Limits of Influence: Psychokinesis and the Philosophy Of Science
Levitations, materializations, healings, earthquake-like rocking. The evidence of large scale spontaneous psychokinesis through history is a neglected and unjustly maligned aspect of the science of… Expand
Spatialization and greater generosity in the stochastic Prisoner's Dilemma.
- P. Grim
- Bio Systems
The iterated Prisoner's Dilemma has become the standard model for the evolution of cooperative behavior within a community of egoistic agents, frequently cited for implications in both sociology and… Expand
The greater generosity of the spatialized prisoner’s dilemma
- P. Grim
- 21 April 1995
Abstract The iterated Prisoner’s Dilemma is the standard model for the evolution of cooperative behavior in a community of egoistic agents. Within that model, a strategy of “tit-for-tat” has… Expand
Disambiguation of social polarization concepts and measures
ABSTRACT This article distinguishes nine senses of polarization and provides formal measures for each one to refine the methodology used to describe polarization in distributions of attitudes. Each… Expand
Scientific Networks on Data Landscapes: Question Difficulty, Epistemic Success, and Convergence.
A scientific community can be modeled as a collection of epistemic agents attempting to answer questions, in part by communicating about their hypotheses and results. Expand
Diversity, Ability, and Expertise in Epistemic Communities
- P. Grim, Daniel J. Singer, Aaron Bramson, B. Holman, Sean Mcgeehan, W. Berger
- Philosophy of Science
- 1 January 2019
The Hong and Page ‘diversity trumps ability’ result has been used to argue for the more general claim that a diverse set of agents is epistemically superior to a comparable group of experts. Here we… Expand