Search Results for author: Yohei Akimoto

Found 2 papers, 0 papers with code

Policy Iteration for Pareto-Optimal Policies in Stochastic Stackelberg Games

no code implementations7 May 2024 Mikoto Kudo, Yohei Akimoto

In general-sum stochastic games, a stationary Stackelberg equilibrium (SSE) does not always exist, in which the leader maximizes leader's return for all the initial states when the follower takes the best response against the leader's policy.

Stepwise Alignment for Constrained Language Model Policy Optimization

no code implementations17 Apr 2024 Akifumi Wachi, Thien Q Tran, Rei Sato, Takumi Tanabe, Yohei Akimoto

This paper formulates a human value alignment as a language model policy optimization problem to maximize reward under a safety constraint and then proposes an algorithm called Stepwise Alignment for Constrained Policy Optimization (SACPO).

Computational Efficiency Language Modelling

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