fix default for intermediate quadratic layers in ICNN #587
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The current diag-quadratic part of ICNN at intermediate layers is not producing expected effect. Essentially all
diag
terms are initialized and stay at 0.This simple fix changes two things:
diag
to-2.
rectifier_fun
tojax.nn.softplus
to have differentiability everywhere.jax.nn.softplus(-2.0)
is roughly0.1
as well as its derivative