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Fix for AdaDelta (#603)

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- state was being read from parameter "s"
- but being stored in parameter "u"
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David Koski 2024-02-01 09:56:27 -08:00 committed by GitHub
parent ba8d6bf365
commit 601c6d6aa8
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python/mlx/optimizers.py
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@ -284,7 +284,7 @@ class AdaDelta(Optimizer):
eps = self.eps
v = state.get("v", mx.zeros_like(gradient))
u = state.get("s", mx.zeros_like(gradient))
u = state.get("u", mx.zeros_like(gradient))
v = rho * v + (1 - rho) * mx.square(gradient)
d = mx.sqrt(u + eps) / mx.sqrt(v + eps) * gradient