3 ms·
Slight update, more fancy initialization of DyT weights (instead of having them be ones) seems to help a lot in my case (although it's still not as good as just
by kouteiheika 2y ago
Slight update, more fancy initialization of DyT weights (instead of having them be ones) seems to help a lot in my case (although it's still not as good as just using RMSNorm). Do something like this on the very first training step (`x` is the input to the layer):
y = x.to(torch.float32)
y = y * torch.rsqrt(y.pow(2).mean(-1, keepdim=True) + 1e-6)
z = torch.tanh(self.alpha * x)
scale = (y / (z + 1e-6)).mean(dim = -2).flatten()
self.weight.detach().copy_(scale)
This basically tries to initialize the weights so that the output of DyT is closer to what RMSNorm would have outputted, and it seems to help.