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News/Exact Global Minimax Risk near Nonidentification
arxiv
PublishedOctober 27, 2026 at 4:00 AM

Exact Global Minimax Risk near Nonidentification

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arXiv:2610.32546v1 Announce Type: cross Abstract: We study squared-error estimation when a nuisance parameter is unidentified on a submodel but affects a target that vanishes there. For models with higher-order profile expansions, we give sufficient conditions under which the largest critical-path m

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