Robust Modified Policy Iteration
Robust Modified Policy Iteration
复制标题
稳健的修改策略迭代
DOI:
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复制
发表时间:
2013
影响因子:
2.1
通讯作者:
A. Schaefer
中科院分区:
文献类型:
--
作者:
David L. Kaufman;A. Schaefer
Robust dynamic programming robust DP mitigates the effects of ambiguity in transition probabilities on the solutions of Markov decision problems. We consider the computation of robust DP solutions for discrete-stage, infinite-horizon, discounted problems with finite state and action spaces. We present robust modified policy iteration RMPI and demonstrate its convergence. RMPI encompasses both of the previously known algorithms, robust value iteration and robust policy iteration. In addition to proposing exact RMPI, in which the “inner problem” is solved precisely, we propose inexact RMPI, in which the inner problem is solved to within a specified tolerance. We also introduce new stopping criteria based on the span seminorm. Finally, we demonstrate through some numerical studies that RMPI can significantly reduce computation time.