Pure-circuit: Strong inapproximability for PPAD

A Deligkas, J Fearnley, A Hollender… - 2022 IEEE 63rd …, 2022 - ieeexplore.ieee.org
The current state-of-the-art methods for showing inapproximability in PPAD arise from the ε-
Generalized-Circuit (ε-GCIRCUIT) problem. Rubinstein (2018) showed that there exists a …

Pure-circuit: Tight inapproximability for PPAD

A Deligkas, J Fearnley, A Hollender… - Journal of the ACM, 2024 - dl.acm.org
The current state-of-the-art methods for showing inapproximability in PPAD arise from the ɛ-
Generalized-Circuit (ɛ-GCircuit) problem. Rubinstein (2018) showed that there exists a …

Empirical Policy Optimization for n-Player Markov Games

Y Zhu, W Li, M Zhao, J Hao… - IEEE transactions on …, 2022 - ieeexplore.ieee.org
In single-agent Markov decision processes, an agent can optimize its policy based on the
interaction with the environment. In multiplayer Markov games (MGs), however, the …

Tight inapproximability for graphical games

A Deligkas, J Fearnley, A Hollender… - Proceedings of the AAAI …, 2023 - ojs.aaai.org
We provide a complete characterization for the computational complexity of finding
approximate equilibria in two-action graphical games. We consider the two most well …

[HTML][HTML] PPAD-complete approximate pure Nash equilibria in Lipschitz games

PW Goldberg, M Katzman - Theoretical Computer Science, 2023 - Elsevier
Lipschitz games, in which there is a limit λ (the Lipschitz value of the game) on how much a
player's payoffs may change when some other player deviates, were introduced about 10 …

PPAD-complete pure approximate Nash equilibria in Lipschitz games

PW Goldberg, M Katzman - International Symposium on Algorithmic Game …, 2022 - Springer
Lipschitz games, in which there is a limit λ (the Lipschitz value of the game) on how much a
player's payoffs may change when some other player deviates, were introduced about 10 …

Playing Coopetitive Polymatrix Games with Small Manipulation Cost

S Mahesh, N Bishop, LC Dinh, L Tran-Thanh - arXiv preprint arXiv …, 2021 - arxiv.org
Iterated coopetitive games capture the situation when one must efficiently balance between
cooperation and competition with the other agents over time in order to win the game (eg, to …