Using f-divergence regularizers inside Fenchel-Young losses yields convex losses and fast f-softargmax operators, and the α=1.5 variant matches or beats cross-entropy in the tasks tested.
Bregman divergence of alpha-divergence, 2017
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Loss Functions and Operators Generated by f-Divergences
Using f-divergence regularizers inside Fenchel-Young losses yields convex losses and fast f-softargmax operators, and the α=1.5 variant matches or beats cross-entropy in the tasks tested.