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Sparsity Preserving DP-SGD in TF Privacy [2 of 4]
Sparsity Preserving DP-SGD in TF Privacy [2 of 4]
Adds sparse noise utilities to privately select sparse indices from and add sparse noise to gradients.
See https://research.google/blog/sparsity-preserving-differentially-private-training/ for more details on the algorithm.