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@jemoka / Jemoka Knowledge Base / wiki/concepts/pomdp_approximation.md
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--- title: "POMDP Approximation" type: concept related: [Point Based Value Iteration, Fast Informed Bound, Hsvi, Qmdp, Alpha Vector] source: https://www.jemoka.com/posts/kbhpomdp_approximation/ confidence: high status: active --- Upper bounds of alpha vectors QMDP and FIB represents an upper bound of the true optimal alpha vector values. QMDP Fast Informed Bound FIB is a generally lower bound than QMDP. Lower bounds of alpha vectors BAWS and blind lower bound represents Faster: best-action worst-state blind lower bound Slower: Point-Based Value Iteration “Perseus”: Randomized PBVI HSVI SARSOP point selection see point selection