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Gated unit formulation #30

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ngimel opened this issue Feb 18, 2018 · 1 comment

ngimel commented Feb 18, 2018

Original PixelCNN paper (https://arxiv.org/pdf/1606.05328.pdf) uses gated unit defined as tanh(a) * sigmoid(b). Same formulation of gated unit is used in the wavenet paper. Yet here you switched to gated unit defined as a*sigmoid(b) https://github.com/openai/pixel-cnn/blob/master/pixel_cnn_pp/nn.py#L286-L287. Is there a reason for this? Does it train better with this nonlinearity?

mcdavid109 commented Mar 9, 2019

You can view Dauphin et al 2017 work that described Gated Linear Unit

ngimel closed this as completed

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