57 citations · 281 across the 23 of their papers we have counts for
23 papers
Momentum Accelerates Evolutionary Dynamics
Marc Harper, Joshua Safyan
We combine momentum from machine learning with evolutionary dynamics, where momentum can be viewed as a simple mechanism of intergenerational memory. Using information divergences…
Memory depth of finite state machine strategies for the iterated prisoner's dilemma
T. J. Gaffney, Marc Harper, Vincent A. Knight
We develop an efficient algorithm to determine the memory-depth of finite state machines and apply the algorithm to a collection of iterated prisoner's dilemma strategies. The calc…
User Sentiment as a Success Metric: Persistent Biases Under Full Randomization
Ercan Yildiz, Joshua Safyan, Marc Harper
We study user sentiment (reported via optional surveys) as a metric for fully randomized A/B tests. Both user-level covariates and treatment assignment can impact response propensi…
Recognising and evaluating the effectiveness of extortion in the Iterated Prisoner's Dilemma
Vincent A. Knight, Marc Harper, Nikoleta E. Glynatsi +1
Since the introduction of zero-determinant strategies, extortionate strategies have received considerable interest. While an interesting class of strategies, the definitions of ext…
Evolution Reinforces Cooperation with the Emergence of Self-Recognition Mechanisms: an empirical study of the Moran process for the iterated Prisoner's dilemma
Vincent Knight, Marc Harper, Nikoleta E. Glynatsi +1
We present insights and empirical results from an extensive numerical study of the evolutionary dynamics of the iterated prisoner's dilemma. Fixation probabilities for Moran proces…
Reinforcement Learning Produces Dominant Strategies for the Iterated Prisoner's Dilemma
Marc Harper, Vincent Knight, Martin Jones +3
We present tournament results and several powerful strategies for the Iterated Prisoner's Dilemma created using reinforcement learning techniques (evolutionary and particle swarm a…