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Legacy autograd function error #118

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Legacy autograd function error #118

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aa0b22e
Legacy autograd function error
etemtezcan Apr 8, 2021
1354a0d
Update nin.py
etemtezcan Apr 9, 2021
9a0f368
Created using Colaboratory
etemtezcan Apr 15, 2021
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8 changes: 3 additions & 5 deletions CIFAR_10/models/nin.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3,16 +3,14 @@
import torch.nn.functional as F

class BinActive(torch.autograd.Function):
'''
Binarize the input activations and calculate the mean across channel dimension.
'''
@staticmethod
def forward(self, input):
self.save_for_backward(input)
size = input.size()
mean = torch.mean(input.abs(), 1, keepdim=True)
input = input.sign()
return input, mean

@staticmethod
def backward(self, grad_output, grad_output_mean):
input, = self.saved_tensors
grad_input = grad_output.clone()
Expand Down Expand Up @@ -40,7 +38,7 @@ def __init__(self, input_channels, output_channels,

def forward(self, x):
x = self.bn(x)
x, mean = BinActive()(x)
x, mean = BinActive.apply(x)
if self.dropout_ratio!=0:
x = self.dropout(x)
x = self.conv(x)
Expand Down
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