Boosting with List-Decodable Codes
Boosting is a fundamental technique for generically improving the accuracy of learning algorithms (Schapire 1989). Existing boosting algorithms construct a strong learner using $O(\log(\frac{1}ε)/γ^2)$ calls to a $γ$-advantage weak learner, and this round complexity is known to be optimal for generic boosters that succeed on all concept classes (Freund 1995). We show that this lower bound can be circumvented for concept classes that satisfy a mild closure property. Specifically, we present a new boosting algorithm that, for any class $\mathcal{F}$ closed under $O(\log \frac{1}γ)$-XOR, strong learns $\mathcal{F}$ using $O(\log \frac{1}ε)$ calls to a $γ$-advantage weak learner and a single ...
| Authors | Addison Prairie, Li-Yang Tan |
|---|---|
| Primary category | stat.ML |
| Published | 7 July 2026 |
| Last updated at source | 7 July 2026 |
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