output
19982026
most citedMemory Metamaterials

862 citations

Showing q-bio.PEShow all

15 papers · 1 filter

q-bio.PE2025

Threshold behavior of a social norm in response to error proneness

Quang Anh Le, Seung Ki Baek

A social norm defines what is good and what is bad in social contexts, as well as what to do based on such assessments. A stable social norm should be maintained against errors com…

q-bio.PE2022★ 15 cited

Evolution of direct reciprocity in group-structured populations

Yohsuke Murase, Christian Hilbe, Seung Ki Baek

People tend to have their social interactions with members of their own community. Such group-structured interactions can have a profound impact on the behaviors that evolve. Group…

q-bio.PE2021★ 26 cited

Social norms in indirect reciprocity with ternary reputations

Yohsuke Murase, Minjae Kim, Seung Ki Baek

Indirect reciprocity is a key mechanism that promotes cooperation in social dilemmas by means of reputation. Although it has been a common practice to represent reputations by bina…

q-bio.PE2021★ 14 cited

Local stability of cooperation in a continuous model of indirect reciprocity

Sanghun Lee, Yohsuke Murase, Seung Ki Baek

Reputation is a powerful mechanism to enforce cooperation among unrelated individuals through indirect reciprocity, but it suffers from disagreement originating from private assess…

q-bio.PE2021★ 3 cited

Assortative clustering in a one-dimensional population with replication strategies

Sunhee Chae, Nahyeon Lee, Seung Ki Baek +1

In a geographically distributed population, assortative clustering plays an important role in evolution by modifying local environments. To examine its effects in a linear habitat,…

q-bio.PE2021★ 12 cited

Win-Stay-Lose-Shift as a self-confirming equilibrium in the iterated Prisoner's Dilemma

Minjae Kim, Jung-Kyoo Choi, Seung Ki Baek

Evolutionary game theory assumes that players replicate a highly scored player's strategy through genetic inheritance. However, when learning occurs culturally, it is often difficu…

q-bio.PE2020★ 33 cited

Five rules for friendly rivalry in direct reciprocity

Yohsuke Murase, Seung Ki Baek

Direct reciprocity is one of the key mechanisms accounting for cooperation in our social life. According to recent understanding, most of classical strategies for direct reciprocit…

q-bio.PE2019★ 7 cited

Automata representation of successful strategies for social dilemmas

Yohsuke Murase, Seung Ki Baek

In a social dilemma, cooperation is collectively optimal, yet individually each group member prefers to defect. A class of successful strategies of direct reciprocity were recently…

q-bio.PE2019★ 6 cited

Sex-ratio bias induced by mutation

Minjae Kim, Hyeong-Chai Jeong, Seung Ki Baek

A question in evolutionary biology is why the number of males is approximately equal to that of females in many species, and Fisher's theory of equal investment answers that it is…

q-bio.PE2018★ 7 cited

Long-range prisoner's dilemma game on a cycle

Jiwon Bahk, Seung Ki Baek, Hyeong-Chai Jeong

We investigate evolutionary dynamics of altruism with long-range interaction on a cycle. The interaction between individuals is described by a simplified version of the prisoner's…

q-bio.PE2018★ 28 cited

Seven rules to avoid the tragedy of the commons

Yohsuke Murase, Seung Ki Baek

Cooperation among self-interested players in a social dilemma is fragile and easily interrupted by mistakes. In this work, we study the repeated -person public-goods game and se…

q-bio.PE2017★ 10 cited

Chaos and unpredictability in evolution of cooperation in continuous time

Taekho You, Minji Kwon, Hang-Hyun Jo +2

Cooperators benefit others with paying costs. Evolution of cooperation crucially depends on the cost-benefit ratio of cooperation, denoted as . In this work, we investigate the…

q-bio.PE2017★ 8 cited

Duality between cooperation and defection in the presence of tit-for-tat in replicator dynamics

Seung Ki Baek, Su Do Yi, Hyeong-Chai Jeong

The prisoner's dilemma describes a conflict between a pair of players, in which defection is a dominant strategy whereas cooperation is collectively optimal. The iterated version o…

q-bio.PE2016★ 36 cited

Combination with anti-tit-for-tat remedies problems of tit-for-tat

Su Do Yi, Seung Ki Baek, Jung-Kyoo Choi

One of the most important questions in game theory concerns how mutual cooperation can be achieved and maintained in a social dilemma. In Axelrod's tournaments of the iterated pris…

q-bio.PE2016★ 66 cited

Comparing reactive and memory-one strategies of direct reciprocity

Seung Ki Baek, Hyeong-Chai Jeong, Christian Hilbe +1

Direct reciprocity is a mechanism for the evolution of cooperation based on repeated interactions. When individuals meet repeatedly, they can use conditional strategies to enforce…