For online l1-multicalibration, the paper achieves eO(T^{-1/3}) for finite group families and eO(T^{-1/4}) with an offline oracle, improving prior oracle-efficient rates.
Breaking the T ^ 2/3 barrier for sequential calibration
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Improved and Oracle-Efficient Online $\ell_1$-Multicalibration
For online l1-multicalibration, the paper achieves eO(T^{-1/3}) for finite group families and eO(T^{-1/4}) with an offline oracle, improving prior oracle-efficient rates.