title: Memory boosts turn taking in evolutionary dilemma games.
abstract: Spontaneous turn taking phenomenon can be observed in many self-organized systems, and the mechanism is unclear. This paper tries to model it by evolutionary dilemma games with memory mechanism. Prisoner's dilemma, Snowdrift (including Leader and Hero) and Stag-hunt games are unified on an extended S-T plane. Agents play game with all the others and make decision by the last game histories. The experiments find that when agents remember last 2-step histories or more, a kind of cooperative turn taking (CAD) bursts at the area of Snowdrift game with restriction of S + T > 2R and S ≠ T, while the consistent strategy (DorC) gathers on the line of S + T > 2R and S = T. We also find that the system's fitness ratio greatly improved with 2-step memory.
authors.affiliation: College of Computer Science and Electronic Engineering, Hunan University, Changsha 410082, China. Electronic address: wangtao1999@foxmail.com.
authors.forename: Tao
authors.initials: T
authors.lastname: Wang
authors.affiliation: School of Software, Central South University, Changsha 410083, China.
authors.forename: Zhigang
authors.initials: Z
authors.lastname: Chen
authors.affiliation: College of Computer Science and Electronic Engineering, Hunan University, Changsha 410082, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Yang
authors.affiliation: High Performance Computing Center, Central South University, Changsha 410083, China.
authors.forename: You
authors.initials: Y
authors.lastname: Zou
authors.affiliation: College of Computer Science and Electronic Engineering, Hunan University, Changsha 410082, China.
authors.forename: Juan
authors.initials: J
authors.lastname: Luo
mesh_terms: D005075:Biological Evolution; D003299:Cooperative Behavior; D005716:Game Theory; D005717:Games, Experimental; D006801:Humans; D008568:Memory; D008962:Models, Theoretical; D049490:Systems Biology
keywords: Cooperation; P reciprocity; R reciprocity; ST reciprocity; TFT; WSLS