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Jasmine Nguyen

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Preprint Aug 2026

The Price of Decentralization in Top-$K$ Arm Identification

Change-of-measure lower bounds show that shared-reward identification is optimal up to one universal logarithmic factor, and that the entire statistical price of removing communication is a multiplicative $\rho^2$ in sample complexity.

Larissa Xu, Jasmine Nguyen, William Chang · 0 citations

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