AdaBound's published O(sqrt(T)) regret guarantee is shown to be incorrect via a counterexample, a corrected guarantee is proved, and dampened SGDM is shown to match AdaBound on CIFAR.
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On the Convergence of AdaBound and its Connection to SGD
AdaBound's published O(sqrt(T)) regret guarantee is shown to be incorrect via a counterexample, a corrected guarantee is proved, and dampened SGDM is shown to match AdaBound on CIFAR.