Unsolved
Remove the Polylogarithmic Gap to Exact Minimax Optimality
Sourced from the work of Kaizheng Wang
§ Problem Statement
Setup
Unsolved Problem
§ Discussion
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§ Significance & Implications
§ Known Partial Results
§ References
[1]
Pseudo-Labeling for Kernel Ridge Regression under Covariate Shift
Kaizheng Wang (2023)
Annals of Statistics (to appear)
📍 Section 7 (Discussion), unnumbered open-direction paragraph immediately after the minimax-up-to-polylog results (no numbered conjecture/remark).
Source paper where this problem appears.