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Gumbel trick error #1

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maestrojeong opened this issue Nov 2, 2018 · 1 comment

maestrojeong commented Nov 2, 2018

https://github.com/vithursant/VAE-Gumbel-Softmax/blob/master/vae_gumbel_softmax.py#L55
You use the logits, however we have to use log(logits) to perform gumbel max trick as stated in https://timvieira.github.io/blog/post/2014/07/31/gumbel-max-trick/

j314erre commented Sep 30, 2024

gumbel softmax((log(pi)+g)/tau), where pi are class probabilities, therefore softmax((logits + g)/tau) will suffice.
https://arxiv.org/pdf/1611.01144

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