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Problems about meta_backward #11

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jiangxingxian opened this issue Nov 8, 2023 · 0 comments

jiangxingxian commented Nov 8, 2023

I have the following problem with the function meta_backward:

X = X+g.mul(a[0].mul(-lr)+a[1]).sum() why should i use -lr?(https://github.com/alinlab/L2T-ww/blob/master/train/meta_optimizers.py#L134)

a_new = (a[0].mul(1-lrwd).add_(wd, a[1]).add_(p.grad.data),
a[1].mul(momentum).add_(-lrmomentum, a[0])) what does this function mean?(https://github.com/alinlab/L2T-ww/blob/master/train/meta_optimizers.py#L142-L143)

I would be very appreciated if you can help me:)

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