From 7ae1f8f9654dcea0a9a22310ac0665a5d3202f0f Mon Sep 17 00:00:00 2001 From: Gustaf Rydholm Date: Mon, 26 Apr 2021 22:04:47 +0200 Subject: Reformatting transformer (work in progress) --- text_recognizer/networks/transformer/norm.py | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 text_recognizer/networks/transformer/norm.py (limited to 'text_recognizer/networks/transformer/norm.py') diff --git a/text_recognizer/networks/transformer/norm.py b/text_recognizer/networks/transformer/norm.py new file mode 100644 index 0000000..99a5291 --- /dev/null +++ b/text_recognizer/networks/transformer/norm.py @@ -0,0 +1,22 @@ +"""Normalization layers for transfromers. + +Copied from lucidrains: + https://github.com/lucidrains/x-transformers/blob/main/x_transformers/x_transformers.py + +""" +from typing import Callable, Dict + +import torch +from torch import nn +from torch import Tensor + + +class Rezero(nn.Module): + def __init__(self, fn: Callable) -> None: + super().__init__() + self.fn = fn + self.g = nn.Parameter(torch.zeros(1)) + + def forward(self, x: Tensor, **kwargs: Dict) -> Tensor: + x, *rest = self.fn(x, **kwargs) + return (x * self.g, *rest) -- cgit v1.2.3-70-g09d2