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News/Detecting a Shift Is Not Enough: Exact Minimax Limits of Linear Representation Repair
arxiv
PublishedOctober 7, 2026 at 4:00 AM

Detecting a Shift Is Not Enough: Exact Minimax Limits of Linear Representation Repair

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arXiv:2610.08069v1 Announce Type: new Abstract: A mean shift between two data sources can be easy to detect but hard to remove without substantially changing their representations. We cast its removal as a statistical decision problem: from noisy differences between paired calibration measurements i

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