conv1_more = [conv_block(hidden_chn, hidden_chn) for _ in range(block_num - 1)]

这行代码的作用是创建一个由多个卷积块组成的列表。具体来说，它使用了列表推导式，将一个名为`conv_block`的函数应用到`block_num - 1`次，生成一个包含多个卷积块的列表`conv1_more`。每个卷积块都有`hidden_chn`个隐藏通道。值得注意的是，这行代码只创建了一个列表，而没有对其进行任何操作。

相关问题

class AttU_Net(nn.Module): def __init__(self, img_ch=3, output_ch=1): super(AttU_Net, self).__init__() self.Maxpool = nn.MaxPool2d(kernel_size=2, stride=2) self.Conv1 = conv_block(ch_in=img_ch, ch_out=64) self.Conv2 = conv_block(ch_in=64, ch_out=128) self.Conv3 = conv_block(ch_in=128, ch_out=256) self.Conv4 = conv_block(ch_in=256, ch_out=512) self.Conv5 = conv_block(ch_in=512, ch_out=1024) self.Up5 = up_conv(ch_in=1024, ch_out=512) self.Att5 = Attention_block(F_g=512, F_l=512, F_int=256) self.Up_conv5 = conv_block(ch_in=1024, ch_out=512) self.Up4 = up_conv(ch_in=512, ch_out=256) self.Att4 = Attention_block(F_g=256, F_l=256, F_int=128) self.Up_conv4 = conv_block(ch_in=512, ch_out=256) self.Up3 = up_conv(ch_in=256, ch_out=128) self.Att3 = Attention_block(F_g=128, F_l=128, F_int=64) self.Up_conv3 = conv_block(ch_in=256, ch_out=128) self.Up2 = up_conv(ch_in=128, ch_out=64) self.Att2 = Attention_block(F_g=64, F_l=64, F_int=32) self.Up_conv2 = conv_block(ch_in=128, ch_out=64) self.Conv_1x1 = nn.Conv2d(64, output_ch, kernel_size=1, stride=1, padding=0) self.sigmoid = nn.Sigmoid()

这段代码定义了一个名为AttU_Net的PyTorch模型。它是一个基于U-Net的改进模型，用于图像分割任务。模型的输入通道数为img_ch，输出通道数为output_ch。

在初始化函数中，首先定义了一个MaxPool2d层，用于下采样操作。

接下来，通过conv_block函数定义了五个卷积块（self.Conv1到self.Conv5），每个卷积块包含一个卷积层和批归一化层。

然后，定义了四个上采样操作（self.Up5到self.Up2），每个上采样操作包含一个上采样层和一个卷积块。

在每个上采样操作后，使用Attention_block模块（self.Att5到self.Att2）对特征图进行注意力计算。

最后，通过一个1x1的卷积层（self.Conv_1x1）将通道数变为output_ch，并使用Sigmoid函数进行输出。

这个AttU_Net模型的设计主要是在U-Net的基础上添加了注意力机制，以提升分割性能。

def model(self): num_classes = self.config.get("CNN_training_rule", "num_classes") seq_length = self.config.get("CNN_training_rule", "seq_length") conv1_num_filters = self.config.get("CNN_training_rule", "conv1_num_filters") conv1_kernel_size = self.config.get("CNN_training_rule", "conv1_kernel_size") conv2_num_filters = self.config.get("CNN_training_rule", "conv2_num_filters") conv2_kernel_size = self.config.get("CNN_training_rule", "conv2_kernel_size") hidden_dim = self.config.get("CNN_training_rule", "hidden_dim") dropout_keep_prob = self.config.get("CNN_training_rule", "dropout_keep_prob") model_input = keras.layers.Input((seq_length,1), dtype='float64') # conv1形状[batch_size, seq_length, conv1_num_filters] conv_1 = keras.layers.Conv1D(conv1_num_filters, conv1_kernel_size, padding="SAME")(model_input) conv_2 = keras.layers.Conv1D(conv2_num_filters, conv2_kernel_size, padding="SAME")(conv_1) max_poolinged = keras.layers.GlobalMaxPool1D()(conv_2) full_connect = keras.layers.Dense(hidden_dim)(max_poolinged) droped = keras.layers.Dropout(dropout_keep_prob)(full_connect) relued = keras.layers.ReLU()(droped) model_output = keras.layers.Dense(num_classes, activation="softmax")(relued) model = keras.models.Model(inputs=model_input, outputs=model_output) # model.compile(loss="categorical_crossentropy", # optimizer="adam", # metrics=["accuracy"]) model.compile(loss='binary_crossentropy', optimizer='adam', metrics=['accuracy']) print(model.summary()) return model给这段代码每行加上注释

def model(self):
    # 获取配置文件中的参数
    num_classes = self.config.get("CNN_training_rule", "num_classes") #分类数
    seq_length = self.config.get("CNN_training_rule", "seq_length") #序列长度
    conv1_num_filters = self.config.get("CNN_training_rule", "conv1_num_filters") #第一层卷积核数量
    conv1_kernel_size = self.config.get("CNN_training_rule", "conv1_kernel_size") #第一层卷积核大小
    conv2_num_filters = self.config.get("CNN_training_rule", "conv2_num_filters") #第二层卷积核数量
    conv2_kernel_size = self.config.get("CNN_training_rule", "conv2_kernel_size") #第二层卷积核大小
    hidden_dim = self.config.get("CNN_training_rule", "hidden_dim") #全连接层隐藏层大小
    dropout_keep_prob = self.config.get("CNN_training_rule", "dropout_keep_prob") #dropout保留率

    # 定义模型输入
    model_input = keras.layers.Input((seq_length,1), dtype='float64')

    # 第一层卷积
    conv_1 = keras.layers.Conv1D(conv1_num_filters, conv1_kernel_size, padding="SAME")(model_input)

    # 第二层卷积
    conv_2 = keras.layers.Conv1D(conv2_num_filters, conv2_kernel_size, padding="SAME")(conv_1)

    # 全局最大池化
    max_poolinged = keras.layers.GlobalMaxPool1D()(conv_2)

    # 全连接层
    full_connect = keras.layers.Dense(hidden_dim)(max_poolinged)

    # dropout层
    droped = keras.layers.Dropout(dropout_keep_prob)(full_connect)

    # relu激活层
    relued = keras.layers.ReLU()(droped)

    # 输出层
    model_output = keras.layers.Dense(num_classes, activation="softmax")(relued)

    # 定义模型
    model = keras.models.Model(inputs=model_input, outputs=model_output)

    # 编译模型
    model.compile(loss='binary_crossentropy',
                  optimizer='adam',
                  metrics=['accuracy'])

    # 打印模型结构
    print(model.summary())

    return model