Elementary Superexpressive Activations
Dmitry Yarotsky 1
Abstract (i.e., for d = 1). The key idea here is to use the separability
We call a finite family of activation functions su- of the space C([0, 1]), and construct a (quite complicated)
perexpressive if any multivariate continuous func- activation by joining all the functions from some dense
tion can be approximated by a neural network that countable subset. In ...


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