New lower bound shows limits of projection-free online learning with linear oracles
A new paper establishes an Ω(T^{3/4}) lower bound for projection-free online learning algorithms that use linear minimization oracles, covering methods such as Online Frank–Wolfe.
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- 2026-10-30 04:00 · arXiv stat.ML
An $\Omega(T^{3/4})$ lower bound for projection-free online learning with linear minimization oracles