为以下每句代码做注释：class Bottleneck(nn.Module): expansion = 4 def init(self, in_channel, out_channel, stride=1, downsample=None): super(Bottleneck, self).init() self.conv1 = nn.Conv2d(in_channels=in_channel, out_channels=out_channel, kernel_size=1, stride=1, bias=False) # squeeze channels self.bn1 = nn.BatchNorm2d(out_channel) self.conv2 = nn.Conv2d(in_channels=out_channel, out_channels=out_channel, kernel_size=3, stride=stride, bias=False, padding=1) self.bn2 = nn.BatchNorm2d(out_channel) self.conv3 = nn.Conv2d(in_channels=out_channel, out_channels=out_channel * self.expansion, kernel_size=1, stride=1, bias=False) # unsqueeze channels self.bn3 = nn.BatchNorm2d(out_channel * self.expansion) self.relu = nn.ReLU(inplace=True) self.downsample = downsample def forward(self, x): identity = x if self.downsample is not None: identity = self.downsample(x) out = self.conv1(x) out = self.bn1(out) out = self.relu(out) out = self.conv2(out) out = self.bn2(out) out = self.relu(out) out = self.conv3(out) out = self.bn3(out) out += identity out = self.relu(out) return out

时间: 2023-06-27 22:02:49 浏览: 208
这段代码定义了一个名为 Bottleneck 的类，继承自 nn.Module。Bottleneck 是 ResNet 中的一种基础块，由三个卷积层组成。 - expansion = 4：用于扩展通道数，即输出通道数是输入通道数的 expansion 倍。 - def __init__(self, in_channel, out_channel, stride=1, downsample=None)：构造函数，传入参数为输入通道数、输出通道数、步幅和下采样。 - super(Bottleneck, self).__init__()：调用父类的构造函数。 - self.conv1 = nn.Conv2d(in_channels=in_channel, out_channels=out_channel, kernel_size=1, stride=1, bias=False)：第一个卷积层，使用 1x1 的卷积核进行降维，减少通道数。 - self.bn1 = nn.BatchNorm2d(out_channel)：第一个 BatchNormalization 层。 - self.conv2 = nn.Conv2d(in_channels=out_channel, out_channels=out_channel, kernel_size=3, stride=stride, bias=False, padding=1)：第二个卷积层，使用 3x3 的卷积核进行特征提取。 - self.bn2 = nn.BatchNorm2d(out_channel)：第二个 BatchNormalization 层。 - self.conv3 = nn.Conv2d(in_channels=out_channel, out_channels=out_channel * self.expansion, kernel_size=1, stride=1, bias=False)：第三个卷积层，使用 1x1 的卷积核进行升维，扩展通道数。 - self.bn3 = nn.BatchNorm2d(out_channel * self.expansion)：第三个 BatchNormalization 层。 - self.relu = nn.ReLU(inplace=True)：ReLU 激活函数。 - self.downsample = downsample：下采样函数，用于调整输入和输出的维度。 - def forward(self, x)：前向传播函数，传入参数为输入数据 x。 - identity = x：将输入数据保存下来。 - if self.downsample is not None: identity = self.downsample(x)：如果下采样函数不为空，则使用下采样函数调整输入数据。 - out = self.conv1(x)：第一个卷积层的前向传播。 - out = self.bn1(out)：第一个 BatchNormalization 层的前向传播。 - out = self.relu(out)：ReLU 激活函数的前向传播。 - out = self.conv2(out)：第二个卷积层的前向传播。 - out = self.bn2(out)：第二个 BatchNormalization 层的前向传播。 - out = self.relu(out)：ReLU 激活函数的前向传播。 - out = self.conv3(out)：第三个卷积层的前向传播。 - out = self.bn3(out)：第三个 BatchNormalization 层的前向传播。 - out += identity：将输入数据和经过卷积后的数据相加，实现残差连接。 - out = self.relu(out)：ReLU 激活函数的前向传播。 - return out：返回经过 Bottleneck 块处理后的数据。

相关推荐

rar

4-NEP.rar_expansion planning_network planning

Network expansion planning example
zip

dc_line1.zip_dc power flow_expansion planning_operation

Power flow or load-flow studies are important for planning future expansion of power systems as well as in determining the best operation of existing systems.
zip

位深度扩展：位深度扩展的实现（http://ihome.ust.hk/~spjaiswal/Bit_Depth_Expansion.html）-matlab开发

Matlab 使用基于最小风险的分类实现位深度扩展“Visual Communications and Image Processing (VCIP)”，2012 IEEE，vol.，no.，pp.1,5，... 详情请访问：： http://ihome.ust.hk/~spjaiswal/Bit_Depth_Expansion.html

为以下的每句代码做注释：class ResNet(nn.Module): def init(self, block, blocks_num, num_classes=1000, include_top=True): super(ResNet, self).init() self.include_top = include_top self.in_channel = 64 self.conv1 = nn.Conv2d(3, self.in_channel, kernel_size=7, stride=2, padding=3, bias=False) self.bn1 = nn.BatchNorm2d(self.in_channel) self.relu = nn.ReLU(inplace=True) self.maxpool = nn.MaxPool2d(kernel_size=3, stride=2, padding=1) self.layer1 = self._make_layer(block, 64, blocks_num[0]) self.layer2 = self._make_layer(block, 128, blocks_num[1], stride=2) self.layer3 = self._make_layer(block, 256, blocks_num[2], stride=2) self.layer4 = self.make_layer(block, 512, blocks_num[3], stride=2) if self.include_top: self.avgpool = nn.AdaptiveAvgPool2d((1, 1)) # output size = (1, 1) self.fc = nn.Linear(512 * block.expansion, num_classes) for m in self.modules(): if isinstance(m, nn.Conv2d): nn.init.kaiming_normal(m.weight, mode='fan_out', nonlinearity='relu') def _make_layer(self, block, channel, block_num, stride=1): downsample = None if stride != 1 or self.in_channel != channel * block.expansion: downsample = nn.Sequential( nn.Conv2d(self.in_channel, channel * block.expansion, kernel_size=1, stride=stride, bias=False), nn.BatchNorm2d(channel * block.expansion)) layers = [] layers.append(block(self.in_channel, channel, downsample=downsample, stride=stride)) self.in_channel = channel * block.expansion for _ in range(1, block_num): layers.append(block(self.in_channel, channel)) return nn.Sequential(*layers) def forward(self, x): x = self.conv1(x) x = self.bn1(x) x = self.relu(x) x = self.maxpool(x) x = self.layer1(x) x = self.layer2(x) x = self.layer3(x) x = self.layer4(x) if self.include_top: x = self.avgpool(x) x = torch.flatten(x, 1) x = self.fc(x) return x

- self.conv1 = nn.Conv2d(3, self.in_channel, kernel_size=7, stride=2, padding=3, bias=False) 定义第一个卷积层，输入通道数为 3，输出通道数为 self.in_channel，卷积核大小为 7x7，步长为 2，填充为 3，不...

为以下的每句代码做注释：class ResNet(nn.Module): def __init__(self, block, blocks_num, num_classes=1000, include_top=True): super(ResNet, self).__init__() self.include_top = include_top self.in_channel = 64 self.conv1 = nn.Conv2d(3, self.in_channel, kernel_size=7, stride=2, padding=3, bias=False) self.bn1 = nn.BatchNorm2d(self.in_channel) self.relu = nn.ReLU(inplace=True) self.maxpool = nn.MaxPool2d(kernel_size=3, stride=2, padding=1) self.layer1 = self._make_layer(block, 64, blocks_num[0]) self.layer2 = self._make_layer(block, 128, blocks_num[1], stride=2) self.layer3 = self._make_layer(block, 256, blocks_num[2], stride=2) self.layer4 = self._make_layer(block, 512, blocks_num[3], stride=2) if self.include_top: self.avgpool = nn.AdaptiveAvgPool2d((1, 1)) # output size = (1, 1) self.fc = nn.Linear(512 * block.expansion, num_classes) for m in self.modules(): if isinstance(m, nn.Conv2d): nn.init.kaiming_normal_(m.weight, mode='fan_out', nonlinearity='relu') def _make_layer(self, block, channel, block_num, stride=1): downsample = None if stride != 1 or self.in_channel != channel * block.expansion: downsample = nn.Sequential( nn.Conv2d(self.in_channel, channel * block.expansion, kernel_size=1, stride=stride, bias=False), nn.BatchNorm2d(channel * block.expansion)) layers = [] layers.append(block(self.in_channel, channel, downsample=downsample, stride=stride)) self.in_channel = channel * block.expansion for _ in range(1, block_num): layers.append(block(self.in_channel, channel)) return nn.Sequential(*layers) def forward(self, x): x = self.conv1(x) x = self.bn1(x) x = self.relu(x) x = self.maxpool(x) x = self.layer1(x) x = self.layer2(x) x = self.layer3(x) x = self.layer4(x) if self.include_top: x = self.avgpool(x) x = torch.flatten(x, 1) x = self.fc(x) return x

这段代码定义了一个名为 ResNet 的类，继承自 nn.Module 类。ResNet 是一个深度卷积神经网络模型，常用于图像分类任务。 在 __init__ 方法中，首先定义了一些基本参数： - block：指定 ResNet 中的基本块类型，如 ...

class Bottleneck(nn.Module): expansion = 4 def __init__(self, inplanes, planes, stride=1, downsample=None, rate=1): super(Bottleneck, self).__init__() self.conv1 = nn.Conv2d(inplanes, planes, kernel_size=1, bias=False) self.bn1 = nn.BatchNorm2d(planes) self.conv2 = nn.Conv2d(planes, planes, kernel_size=3, stride=stride, padding=rate, dilation=rate, bias=False) self.bn2 = nn.BatchNorm2d(planes) self.conv3 = nn.Conv2d(planes, planes * self.expansion, kernel_size=1, bias=False) self.bn3 = nn.BatchNorm2d(planes * self.expansion) self.relu = nn.ReLU(inplace=True) self.downsample = downsample self.stride = stride解释

这段代码定义了一个 ResNet 中的 Bottleneck 模块，它是由三个卷积层组成的。第一个卷积层使用 1x1 的卷积核将输入通道数 inplanes 转换为 planes，第二个卷积层使用 3x3 的卷积核进行卷积操作，并且可能会进行下...

class BasicBlock(nn.Module): expansion = 1 def __init__(self, in_channels, out_channels, stride=1, downsample=None): super(BasicBlock, self).__init__() self.conv1 = nn.Conv2d(in_channels=in_channels, out_channels=out_channels , kernel_size=3, stride=stride, padding=1, bias=False) self.bn1 = nn.BatchNorm2d(out_channels) self.relu = nn.ReLU() self.conv2 = nn.Conv2d(out_channels, out_channels, kernel_size=3, stride=1, padding=1, bias=False) self.bn2 = nn.BatchNorm2d(out_channels) self.downsample = downsample

这是一个PyTorch中定义ResNet的BasicBlock的代码。BasicBlock是ResNet中的基本残差块，包含两个卷...在ResNet中还有Bottleneck残差块，它的输出通道数是输入通道数的4倍，expansion=4。 希望这可以帮助回答你的问题。

class BasicBlock1(layers.Layer): expansion = 1 def __init__(self, in_channels, out_channels, stride=1): super(BasicBlock, self).__init__() g\对不对

def __init__(self, in_channels, out_channels, stride=1): super(BasicBlock1, self).__init__() # rest of the code 这样，super() 函数将会调用 BasicBlock1 的父类的构造函数，而不是 BasicBlock...

解释这段代码class Bottleneck(nn.Module): expansion = 4 def __init__(self, inplanes, planes, stride=1, downsample=None, groups=1, base_width=64, dilation=1, norm_layer=None): super(Bottleneck, self).__init__() if norm_layer is None: norm_layer = nn.BatchNorm2d width = int(planes * (base_width / 64.)) * groups # Both self.conv2 and self.downsample layers downsample the input when stride != 1 self.conv1 = conv1x1(inplanes, width) self.bn1 = norm_layer(width) self.conv2 = conv3x3(width, width, stride, groups, dilation) self.bn2 = norm_layer(width) self.conv3 = conv1x1(width, planes * self.expansion) self.bn3 = norm_layer(planes * self.expansion) self.relu = nn.ReLU(inplace=True) self.downsample = downsample self.stride = stride def forward(self, x): identity = x out = self.conv1(x) out = self.bn1(out) out = self.relu(out) out = self.conv2(out) out = self.bn2(out) out = self.relu(out) out = self.conv3(out) out = self.bn3(out) if self.downsample is not None: identity = self.downsample(x) out += identity out = self.relu(out) return out

这段代码定义了一个名为Bottleneck的类，它继承自nn.Module类，用于实现一个残差块。在深度残差网络中，残差块是构建网络的基本单元之一。 该类中的expansion变量被设置为4，表示在最后一个卷积层之前的维度扩展...

class BasicBlock2D(nn.Module): expansion = 1 def __init__(self, in_channels, out_channels, stride=1): super(BasicBlock2D, self).__init__() self.conv1 = nn.Conv2d(in_channels, out_channels, kernel_size=3, stride=stride, padding=1, bias=False) self.bn1 = nn.BatchNorm2d(out_channels) self.conv2 = nn.Conv2d(out_channels, out_channels, kernel_size=3, stride=1, padding=1, bias=False) self.bn2 = nn.BatchNorm2d(out_channels) self.shortcut = nn.Sequential() if stride != 1 or in_channels != self.expansion * out_channels: self.shortcut = nn.Sequential( nn.Conv2d(in_channels, self.expansion * out_channels, kernel_size=1, stride=stride, bias=False), nn.BatchNorm2d(self.expansion * out_channels) ) def forward(self, x): out = F.relu(self.bn1(self.conv1(x))) out = self.bn2(self.conv2(out)) out += self.shortcut(x) out = F.relu(out) return out # 定义二维ResNet-18模型 class ResNet18_2D(nn.Module): def __init__(self, num_classes=1000): super(ResNet18_2D, self).__init__() self.in_channels = 64 self.conv1 = nn.Conv2d(1, 64, kernel_size=7, stride=2, padding=3, bias=False) self.bn1 = nn.BatchNorm2d(64) self.maxpool = nn.MaxPool2d(kernel_size=3, stride=2, padding=1) self.layer1 = self._make_layer(BasicBlock2D, 64, 2, stride=1) self.layer2 = self._make_layer(BasicBlock2D, 128, 2, stride=2) self.layer3 = self._make_layer(BasicBlock2D, 256, 2, stride=2) self.layer4 = self._make_layer(BasicBlock2D, 512, 2, stride=2) self.avgpool = nn.AdaptiveAvgPool2d((1, 1)) self.fc = nn.Linear(512 , 512) def _make_layer(self, block, out_channels, num_blocks, stride): layers = [] layers.append(block(self.in_channels, out_channels, stride)) self.in_channels = out_channels * block.expansion for _ in range(1, num_blocks): layers.append(block(self.in_channels, out_channels)) return nn.Sequential(*layers) def forward(self, x): out = F.relu(self.bn1(self.conv1(x))) out = self.maxpool(out) out = self.layer1(out) out = self.layer2(out) out = self.layer3(out) out = self.layer4(out) out = self.avgpool(out) # print(out.shape) out = out.view(out.size(0), -1) out = self.fc(out) return out改为用稀疏表示替换全连接层

self.in_channels = out_channels * block.expansion for _ in range(1, num_blocks): layers.append(block(self.in_channels, out_channels)) return nn.Sequential(*layers) def forward(self, x): out = F...

def init(self, in_channel, out_channel, stride=1, downsample=None, groups=1, width_per_group=64): super(Bottleneck, self).init() width = int(out_channel * (width_per_group / 64.)) * groups self.conv1 = nn.Conv2d(in_channels=in_channel, out_channels=width, kernel_size=1, stride=1, bias=False) # squeeze channels self.bn1 = nn.BatchNorm2d(width) self.conv2 = nn.Conv2d(in_channels=width, out_channels=width, groups=groups, kernel_size=3, stride=stride, bias=False, padding=1) self.bn2 = nn.BatchNorm2d(width) self.conv3 = nn.Conv2d(in_channels=width, out_channels=out_channelself.expansion, kernel_size=1, stride=1, bias=False) # unsqueeze channels self.bn3 = nn.BatchNorm2d(out_channelself.expansion) self.relu = nn.ReLU(inplace=True) self.downsample = downsample

该模块的输出通道数是 out_channel*self.expansion，其中 self.expansion 是一个常量，用于保持输入和输出通道数的一致性。需要注意的是，该段代码的 init 函数应该是 __init__ 函数的拼写错误，应该修改为 __init__...

解释这段代码class BasicBlock(nn.Module): expansion = 1 def __init__(self, inplanes, planes, stride=1, downsample=None, groups=1, base_width=64, dilation=1, norm_layer=None): super(BasicBlock, self).__init__() if norm_layer is None: norm_layer = nn.BatchNorm2d if groups != 1 or base_width != 64: raise ValueError('BasicBlock only supports groups=1 and base_width=64') if dilation > 1: raise NotImplementedError("Dilation > 1 not supported in BasicBlock") # Both self.conv1 and self.downsample layers downsample the input when stride != 1 self.conv1 = conv3x3(inplanes, planes, stride) self.bn1 = norm_layer(planes) self.relu = nn.ReLU(inplace=True) self.conv2 = conv3x3(planes, planes) self.bn2 = norm_layer(planes) self.downsample = downsample self.stride = stride def forward(self, x): identity = x out = self.conv1(x) out = self.bn1(out) out = self.relu(out) out = self.conv2(out) out = self.bn2(out) if self.downsample is not None: identity = self.downsample(x) out += identity out = self.relu(out) return out

这段代码定义了一个名为BasicBlock的类，它也是一个继承自nn.Module类的残差块。与前面提到的Bottleneck类相比，BasicBlock类的扩展因子（expansion）为1，即不进行维度扩展。 在初始化方法中，定义了一系列的卷积...

class BasicBlock(layers.Layer): expansion = 1 def __init__(self, in_channels, out_channels, stride=1): super(BasicBlock, self).__init__() # 1. BasicBlock模块中的共有2个卷积;BasicBlock模块中的第1个卷积层; self.conv1 = regularized_padded_conv(out_channels, kernel_size=3, strides=stride) self.bn1 = layers.BatchNormalization() # 2. 第2个；第1个卷积如果做stride就会有一个下采样，在这个里面就不做下采样了。这一块始终保持size一致，把stride固定为1 self.conv2 = regularized_padded_conv(out_channels, kernel_size=3, strides=1) self.bn2 = layers.BatchNormalization() # 3. 判断stride是否等于1,如果为1就是没有降采样。 if stride != 1 or in_channels != self.expansion * out_channels: self.shortcut = Sequential([regularized_padded_conv(self.expansion * out_channels, kernel_size=1, strides=stride), layers.BatchNormalization()]) else: self.shortcut = lambda x, _: x self.max= layers.GlobalMaxPooling2D(kernel_size=2, stride=2) def call(self, inputs, training=False): out = self.conv1(inputs) out = self.bn1(out, training=training) out = tf.nn.relu(out) out = self.conv2(out) out = self.bn2(out, training=training) out = out + self.shortcut(inputs, training) out = self.pool(out) out = tf.nn.relu(out) return out有没有错

在 call 方法中，out = self.pool(out) 这一行应该改为 out = self.max(out)，因为该模块中定义的是一个全局最大池化层，而不是一个池化层。 因此，正确的代码应该是这样的： class BasicBlock(layers....

定义模块class BasicBlock(layers.Layer): expansion = 1 def __init__(self, in_channels, out_channels, stride=1): super(BasicBlock, self).__init__() # 1. BasicBlock模块中的共有2个卷积;BasicBlock模块中的第1个卷积层; self.conv1 = regularized_padded_conv(out_channels, kernel_size=3, strides=stride) self.bn1 = layers.BatchNormalization() # 2. 第2个；第1个卷积如果做stride就会有一个下采样，在这个里面就不做下采样了。这一块始终保持size一致，把stride固定为1 self.conv2 = regularized_padded_conv(out_channels, kernel_size=3, strides=1) self.bn2 = layers.BatchNormalization() # 3. 判断stride是否等于1,如果为1就是没有降采样。 if stride != 1 or in_channels != self.expansion * out_channels: self.shortcut = Sequential([regularized_padded_conv(self.expansion * out_channels, kernel_size=1, strides=stride), layers.BatchNormalization()]) else: self.shortcut = lambda x, _: x self.max= layers.GlobalMaxPooling2D(kernel_size=2, stride=2) def call(self, inputs, training=False): out = self.conv1(inputs) out = self.bn1(out, training=training) out = tf.nn.relu(out) out = self.conv2(out) out = self.bn2(out, training=training) out = out + self.shortcut(inputs, training) out = self.pool(out) out = tf.nn.relu(out) return out后，如何嗲用

def __init__(self, in_channels, out_channels, stride=1): super(BasicBlock, self).__init__() # 1. BasicBlock模块中的共有2个卷积;BasicBlock模块中的第1个卷积层; self.conv1 = layers.Conv2D(out_...

class ResNet18_2D(nn.Module): def __init__(self, num_classes=1000): super(ResNet18_2D, self).__init__() self.in_channels = 64 self.conv1 = nn.Conv2d(1, 64, kernel_size=7, stride=2, padding=3, bias=False) self.bn1 = nn.BatchNorm2d(64) self.LeakyReLU = nn.LeakyReLU(negative_slope=0.1) self.relu = nn.ReLU(inplace=True) self.elu = nn.ELU(inplace=True) self.maxpool = nn.MaxPool2d(kernel_size=3, stride=2, padding=1) self.layer1 = self._make_layer(BasicBlock2D, 64, 2, stride=1) self.layer2 = self._make_layer(BasicBlock2D, 128, 2, stride=2) self.layer3 = self._make_layer(BasicBlock2D, 256, 2, stride=2) self.layer4 = self._make_layer(BasicBlock2D, 512, 2, stride=2) self.avgpool = nn.AdaptiveAvgPool2d((1, 1)) self.fc = nn.Linear(512 , 512) def _make_layer(self, block, out_channels, num_blocks, stride): layers = [] layers.append(block(self.in_channels, out_channels, stride)) self.in_channels = out_channels * block.expansion for _ in range(1, num_blocks): layers.append(block(self.in_channels, out_channels)) return nn.Sequential(*layers) def forward(self, x): # out = F.ReLU(self.bn1(self.conv1(x))) out = self.conv1(x) out = self.bn1(out) out = self.relu(out) out = self.maxpool(out) out = self.layer1(out) out = self.layer2(out) out = self.layer3(out) out = self.layer4(out) out = self.avgpool(out) out = out.view(out.size(0), -1) return out 在self.layer4(out)和 self.avgpool(out)之间加CBAM

要在 self.layer4(out) 和 self.avgpool(out) 之间CBAM模块，可以按照以下步骤进行修改： 首先，导入CBAM模块的相关库： python from cbam import CBAM 然后，在ResNet18_2D类中添加CBAM模块： ...

class Block(nn.Module): def __init__(self, in_planes, out_planes, expansion, stride): super(Block, self).__init__() self.stride = stride planes = expansion * in_planes self.conv1 = nn.Conv2d(in_planes, planes, kernel_size=1, bias=False) self.bn1 = nn.BatchNorm2d(planes) self.conv2 = nn.Conv2d(planes, planes, kernel_size=3, stride=stride, padding=1, groups=planes, bias=False) self.bn2 = nn.BatchNorm2d(planes) self.conv3 = nn.Conv2d(planes, out_planes, kernel_size=1, bias=False) self.bn3 = nn.BatchNorm2d(out_planes) self.shortcut = nn.Sequential() if stride == 1 and in_planes != out_planes: self.shortcut = nn.Sequential( nn.Conv2d(in_planes, out_planes, kernel_size=1, stride=stride, bias=False), nn.BatchNorm2d(out_planes) )

在初始化函数中，它接收输入通道数（in_planes）、输出通道数（out_planes）、扩展倍数（expansion）和步长（stride）作为参数。在初始化过程中，它定义了一系列的卷积层和批归一化层。 具体来说，它包含以下几个层...

def __init__(self, in_channel, out_channel, stride=1, downsample=None, groups=1, width_per_group=64): super(Bottleneck, self).__init__() width = int(out_channel * (width_per_group / 64.)) * groups self.conv1 = nn.Conv2d(in_channels=in_channel, out_channels=width, kernel_size=1, stride=1, bias=False) # squeeze channels self.bn1 = nn.BatchNorm2d(width) # ----------------------------------------- self.conv2 = nn.Conv2d(in_channels=width, out_channels=width, groups=groups, kernel_size=3, stride=stride, bias=False, padding=1) self.bn2 = nn.BatchNorm2d(width) # ----------------------------------------- self.conv3 = nn.Conv2d(in_channels=width, out_channels=out_channel*self.expansion, kernel_size=1, stride=1, bias=False) # unsqueeze channels self.bn3 = nn.BatchNorm2d(out_channel*self.expansion) self.relu = nn.ReLU(inplace=True) self.downsample = downsample

这段代码是一个 Bottleneck 模块的初始化函数。Bottleneck 模块是 ResNet 中的一种基本模块...该模块的输出通道数是 out_channel*self.expansion，其中 self.expansion 是一个常量，用于保持输入和输出通道数的一致性。

class定义class BasicBlock(layers.Layer): expansion = 1 def init(self, in_channels, out_channels, stride=1): super(BasicBlock, self).init() # 1. BasicBlock模块中的共有2个卷积;BasicBlock模块中的第1个卷积层; self.conv1 = regularized_padded_conv(out_channels, kernel_size=3, strides=stride) self.bn1 = layers.BatchNormalization() # 2. 第2个；第1个卷积如果做stride就会有一个下采样，在这个里面就不做下采样了。这一块始终保持size一致，把stride固定为1 self.conv2 = regularized_padded_conv(out_channels, kernel_size=3, strides=1) self.bn2 = layers.BatchNormalization() # 3. 判断stride是否等于1,如果为1就是没有降采样。 if stride != 1 or in_channels != self.expansion * out_channels: self.shortcut = Sequential([regularized_padded_conv(self.expansion * out_channels, kernel_size=1, strides=stride), layers.BatchNormalization()]) else: self.shortcut = lambda x, _: x self.max= layers.GlobalMaxPooling2D(kernel_size=2, stride=2) def call(self, inputs, training=False): out = self.conv1(inputs) out = self.bn1(out, training=training) out = tf.nn.relu(out) out = self.conv2(out) out = self.bn2(out, training=training) out = out + self.shortcut(inputs, training) out = self.pool(out) out = tf.nn.relu(out) return out 后如何在一个def定义的卷积网络中调用该模块

在一个def定义的卷积网络中调用该模块，可以像这样： python class ConvNet(tf.keras.Model): def __init__(self): super(ConvNet, self).__init__() self.conv1 = tf.keras.layers.Conv2D(64, 3, activation...

class StrainNetF(nn.Module): expansion = 1 def __init__(self,batchNorm=True): super(StrainNetF,self).__init__() self.batchNorm = batchNorm self.conv1 = conv(self.batchNorm, 6, 64, kernel_size=7, stride=1) self.conv2 = conv(self.batchNorm, 64, 128, kernel_size=5, stride=1) self.conv3 = conv(self.batchNorm, 128, 256, kernel_size=5, stride=2) self.conv3_1 = conv(self.batchNorm, 256, 256) self.conv4 = conv(self.batchNorm, 256, 512, stride=2) self.conv4_1 = conv(self.batchNorm, 512, 512) self.conv5 = conv(self.batchNorm, 512, 512, stride=2) self.conv5_1 = conv(self.batchNorm, 512, 512) self.conv6 = conv(self.batchNorm, 512, 1024, stride=2) self.conv6_1 = conv(self.batchNorm,1024, 1024) self.deconv5 = deconv(1024,512) self.deconv4 = deconv(1026,256) self.deconv3 = deconv(770,128) self.deconv2 = deconv(386,64) self.predict_flow6 = predict_flow(1024) self.predict_flow5 = predict_flow(1026) self.predict_flow4 = predict_flow(770) self.predict_flow3 = predict_flow(386) self.predict_flow2 = predict_flow(194) self.upsampled_flow6_to_5 = nn.ConvTranspose2d(2, 2, 4, 2, 1, bias=False) self.upsampled_flow5_to_4 = nn.ConvTranspose2d(2, 2, 4, 2, 1, bias=False) self.upsampled_flow4_to_3 = nn.ConvTranspose2d(2, 2, 4, 2, 1, bias=False) self.upsampled_flow3_to_2 = nn.ConvTranspose2d(2, 2, 4, 2, 1, bias=False)

这段代码是一个名为StrainNetF的神经网络模型的定义。这个模型是基于PyTorch的nn.Module类构建的。 模型的构造函数__init__()接受一个布尔值batchNorm，用于指定是否应用批量归一化。模型的结构如下： - conv1是一...

最新推荐

recommend-type

Python源码-数学美之樱花.py

Python源码-数学美之樱花
recommend-type

蚁群算法（ACO）求解TSP问题，MATLAB源码，代码注释详细，可根据自身需求拓展应用

蚁群算法（ACO）求解TSP问题，MATLAB源码，代码注释详细，可根据自身需求拓展应用
recommend-type

2024年5月最新采集大众点评全国(内地)-学习培训大类-店铺基础信息，93余万家

2024年5月最新采集大众点评全国(内地)-学习培训大类-店铺基础信息，93余万家。此处仅展示1万家，全量也有。 2024年5月最新大众点评店铺基础信息采集。含美食、休闲娱乐、结婚、电影演出赛事、丽人、酒店、亲子、周边游、运动健身、购物、家装、学习培训、医疗健康、爱车、宠物等十几大类共几千万家店铺信息。
recommend-type

zigbee-cluster-library-specification

最新的zigbee-cluster-library-specification说明文档。
recommend-type

管理建模和仿真的文件

管理Boualem Benatallah引用此版本：布阿利姆·贝纳塔拉。管理建模和仿真。约瑟夫-傅立叶大学-格勒诺布尔第一大学，1996年。法语。NNT：电话：00345357HAL ID：电话：00345357https://theses.hal.science/tel-003453572008年12月9日提交HAL是一个多学科的开放存取档案馆，用于存放和传播科学研究论文，无论它们是否被公开。论文可以来自法国或国外的教学和研究机构，也可以来自公共或私人研究中心。L’archive ouverte pluridisciplinaire
recommend-type

实现实时数据湖架构：Kafka与Hive集成

![实现实时数据湖架构：Kafka与Hive集成](https://img-blog.csdnimg.cn/img_convert/10eb2e6972b3b6086286fc64c0b3ee41.jpeg) # 1. 实时数据湖架构概述** 实时数据湖是一种现代数据管理架构，它允许企业以低延迟的方式收集、存储和处理大量数据。与传统数据仓库不同，实时数据湖不依赖于预先定义的模式，而是采用灵活的架构，可以处理各种数据类型和格式。这种架构为企业提供了以下优势： - **实时洞察：**实时数据湖允许企业访问最新的数据，从而做出更明智的决策。 - **数据民主化：**实时数据湖使各种利益相关者都可
recommend-type

用matlab绘制高斯色噪声情况下的频率估计CRLB，其中w(n)是零均值高斯色噪声，w(n)=0.8*w(n-1)+e(n)，e(n)服从零均值方差为se的高斯分布

以下是用matlab绘制高斯色噪声情况下频率估计CRLB的代码： ```matlab % 参数设置 N = 100; % 信号长度 se = 0.5; % 噪声方差 w = zeros(N,1); % 高斯色噪声 w(1) = randn(1)*sqrt(se); for n = 2:N w(n) = 0.8*w(n-1) + randn(1)*sqrt(se); end % 计算频率估计CRLB fs = 1; % 采样频率 df = 0.01; % 频率分辨率 f = 0:df:fs/2; % 频率范围 M = length(f); CRLB = zeros(M,1); for
recommend-type

JSBSim Reference Manual

JSBSim参考手册，其中包含JSBSim简介，JSBSim配置文件xml的编写语法，编程手册以及一些应用实例等。其中有部分内容还没有写完，估计有生之年很难看到完整版了，但是内容还是很有参考价值的。
recommend-type

"互动学习：行动中的多样性与论文攻读经历"

多样性她- 事实上SCI NCES你的时间表ECOLEDO C Tora SC和NCESPOUR l’Ingén学习互动，互动学习以行动为中心的强化学习学会互动，互动学习，以行动为中心的强化学习计算机科学博士论文于2021年9月28日在Villeneuve d'Asq公开支持马修·瑟林评审团主席法布里斯·勒菲弗尔阿维尼翁大学教授论文指导奥利维尔·皮耶昆谷歌研究教授：智囊团论文联合主任菲利普·普雷教授，大学。里尔/CRISTAL/因里亚报告员奥利维耶·西格德索邦大学报告员卢多维奇·德诺耶教授，Facebook /索邦大学审查员越南圣迈IMT Atlantic高级讲师邀请弗洛里安·斯特鲁布博士，Deepmind对于那些及时看到自己错误的人...3谢谢你首先，我要感谢我的两位博士生导师Olivier和Philippe。奥利维尔，"站在巨人的肩膀上"这句话对你来说完全有意义了。从科学上讲，你知道在这篇论文的（许多）错误中，你是我可以依
recommend-type

实现实时监控告警系统：Kafka与Grafana整合

![实现实时监控告警系统：Kafka与Grafana整合](https://imgconvert.csdnimg.cn/aHR0cHM6Ly9tbWJpei5xcGljLmNuL21tYml6X2pwZy9BVldpY3ladXVDbEZpY1pLWmw2bUVaWXFUcEdLT1VDdkxRSmQxZXB5R1lxaWNlUjA2c0hFek5Qc3FyRktudFF1VDMxQVl3QTRXV2lhSWFRMEFRc0I1cW1ZOGcvNjQw?x-oss-process=image/format,png) # 1.1 Kafka集群架构 Kafka集群由多个称为代理的服务器组成，这