Question about the author of the activation function leaky tanh

[Junshuai1024]

I would like to ask you who came up with the activation function leaky tanh. I used the larq framework to experiment with binary networks and found it very effective. I have not found its author on the web and would like your help.

[CNugteren]

Pinging @koenhelwegen as he has added this activation function to Larq in 2019 in #78.

[koenhelwegen]

I thought this came from either the original STE paper or XNOR-net, but I don't see it there... Will have another look through the papers we were reading back then when I've time. In the meantime, perhaps @lgeiger do you have any recollection of where we came up with this?