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New method analyzes fair two-player zero-sum games with bandit feedback

Researchers have developed a new method to analyze two-player zero-sum games with bandit feedback under fairness constraints. Their approach re-parametrizes the game to transform it into a standard zero-sum game, simplifying the analysis of mixed equilibria. This allows for the derivation of fair minimax values and a dual representation that quantifies the price of fairness, showing it is at most $\alpha(1-1/m)$ and vanishes if the unconstrained equilibrium already has full support. The proposed algorithm achieves an $\widetilde{O}(T^{2/3})$ regret bound for general mixed fair equilibria. AI

IMPACT Introduces a novel theoretical framework for analyzing fair game equilibria, potentially impacting AI agents in competitive or resource-constrained environments.

RANK_REASON This is a research paper published on arXiv detailing a new theoretical approach to game theory. [lever_c_demoted from research: ic=1 ai=1.0]

Read on arXiv cs.LG →

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COVERAGE [1]

  1. arXiv cs.LG TIER_1 English(EN) · S Akash, Pratik Gajane ·

    Fairness in two-player zero-sum games with bandit feedback

    arXiv:2606.01159v1 Announce Type: new Abstract: We study two-player zero-sum games (TPZSGs) with bandit feedback under fairness constraints requiring every action to be played with probability at least $\alpha/m$. Existing instance-dependent results target $\textit{pure}$ Nash eq…