DP-SkGD adds calibrated Gaussian noise to sketched block coordinate descent, recovers DP-SGD and DP-CD as special cases, and gets faster rates via importance sampling.
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Differentially Private Random Block Coordinate Descent
DP-SkGD adds calibrated Gaussian noise to sketched block coordinate descent, recovers DP-SGD and DP-CD as special cases, and gets faster rates via importance sampling.