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import math
import torch
import torch.nn as nn
import torch.nn.functional as F
def conv7x7(in_planes, out_planes, stride=1, groups=1, dilation=1):
"""7x7 convolution with padding"""
return nn.Conv2d(
in_planes,
out_planes,
kernel_size=7,
stride=stride,
padding=3 * dilation,
groups=groups,
bias=False,
dilation=dilation,
)
def conv5x5(in_planes, out_planes, stride=1, groups=1, dilation=1):
"""5x5 convolution with padding"""
return nn.Conv2d(
in_planes,
out_planes,
kernel_size=5,
stride=stride,
padding=2 * dilation,
groups=groups,
bias=False,
dilation=dilation,
)
def conv3x3(in_planes, out_planes, stride=1, groups=1, dilation=1):
"""3x3 convolution with padding"""
return nn.Conv2d(
in_planes,
out_planes,
kernel_size=3,
stride=stride,
padding=dilation,
groups=groups,
bias=False,
dilation=dilation,
)
def conv1x1(in_planes, out_planes, stride=1):
"""1x1 convolution"""
return nn.Conv2d(in_planes, out_planes, kernel_size=1, stride=stride, bias=False)
def maxpool(**kwargs):
return nn.MaxPool2d(kernel_size=3, stride=2, padding=1)
def avgpool(**kwargs):
return nn.AvgPool2d(kernel_size=3, stride=2, padding=1)
def dropout(prob):
return nn.Dropout(prob)
conv3x3sep = lambda i, o, s=1: conv3x3(i, o, s, groups=i)
conv3x3g2 = lambda i, o, s=1: conv3x3(i, o, s, groups=2)
conv3x3g4 = lambda i, o, s=1: conv3x3(i, o, s, groups=4)
conv3x3g8 = lambda i, o, s=1: conv3x3(i, o, s, groups=8)
conv3x3dw = lambda i, o, s=1: conv3x3(i, o, s, groups=i)
conv3x3d2 = lambda i, o, s=1: conv3x3(i, o, s, dilation=2)
conv3x3d3 = lambda i, o, s=1: conv3x3(i, o, s, dilation=3)
conv3x3d4 = lambda i, o, s=1: conv3x3(i, o, s, dilation=4)
conv5x5sep = lambda i, o, s=1: conv5x5(i, o, s, groups=i)
conv5x5g2 = lambda i, o, s=1: conv5x5(i, o, s, groups=2)
conv5x5g4 = lambda i, o, s=1: conv5x5(i, o, s, groups=4)
conv5x5g8 = lambda i, o, s=1: conv5x5(i, o, s, groups=8)
conv5x5dw = lambda i, o, s=1: conv5x5(i, o, s, groups=i)
conv5x5d2 = lambda i, o, s=1: conv5x5(i, o, s, dilation=2)
conv5x5d3 = lambda i, o, s=1: conv5x5(i, o, s, dilation=3)
conv5x5d4 = lambda i, o, s=1: conv5x5(i, o, s, dilation=4)
conv7x7sep = lambda i, o, s=1: conv7x7(i, o, s, groups=i)
conv7x7g2 = lambda i, o, s=1: conv7x7(i, o, s, groups=2)
conv7x7g4 = lambda i, o, s=1: conv7x7(i, o, s, groups=4)
conv7x7g8 = lambda i, o, s=1: conv7x7(i, o, s, groups=8)
conv7x7dw = lambda i, o, s=1: conv7x7(i, o, s, groups=i)
conv7x7d2 = lambda i, o, s=1: conv7x7(i, o, s, dilation=2)
conv7x7d3 = lambda i, o, s=1: conv7x7(i, o, s, dilation=3)
conv7x7d4 = lambda i, o, s=1: conv7x7(i, o, s, dilation=4)
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