Author

Jiachen Hu

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Preprint Aug 2026

Interaction Is Not Necessary for Order-Optimal 1-Bit Mean Estimation

A randomized fully non-adaptive protocol is constructed that fixes all queries before observing the data and matches the optimal adaptive sample complexity, giving a negative answer to the COLT 2026 open problem asking whether interaction is necessary for order-optimal one-bit mean estimation.

Jiachen Hu, Han Zhong · 0 citations