PhyB averages over the k worst dynamics models with entropy-weighted coefficients and uses Bregman-regularized policy iteration; it claims bounded pessimism, monotonic improvement, and top D4RL scores.
arXiv preprint arXiv:2104.13877 , year=
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Regularized Offline Policy Optimization with Posterior Hybrid Bayesian Belief
PhyB averages over the k worst dynamics models with entropy-weighted coefficients and uses Bregman-regularized policy iteration; it claims bounded pessimism, monotonic improvement, and top D4RL scores.