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corenel / pytorch-adda

A PyTorch implementation for Adversarial Discriminative Domain Adaptation
MIT License
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Questions about zero_grad() #19

Open omg777 opened 5 years ago

omg777 commented 5 years ago

In adapt.py ,81 line.

Why optimizer_critic.zero_grad() is needed ?

# zero gradients for optimizer
optimizer_critic.zero_grad()
optimizer_tgt.zero_grad()