卷积神经网络模型代码
时间: 2023-10-31 18:07:03 浏览: 114
当然,我可以提供一个简单的卷积神经网络(Convolutional Neural Network,CNN)模型的代码示例。以下是一个使用Python和PyTorch库编写的基本CNN模型:
```python
import torch
import torch.nn as nn
class CNN(nn.Module):
def __init__(self):
super(CNN, self).__init__()
# 定义卷积层
self.conv1 = nn.Conv2d(3, 16, kernel_size=3, stride=1, padding=1)
self.relu1 = nn.ReLU()
self.pool1 = nn.MaxPool2d(kernel_size=2, stride=2)
self.conv2 = nn.Conv2d(16, 32, kernel_size=3, stride=1, padding=1)
self.relu2 = nn.ReLU()
self.pool2 = nn.MaxPool2d(kernel_size=2, stride=2)
# 定义全连接层
self.fc1 = nn.Linear(32 * 8 * 8, 128)
self.relu3 = nn.ReLU()
self.fc2 = nn.Linear(128, 10)
def forward(self, x):
x = self.pool1(self.relu1(self.conv1(x)))
x = self.pool2(self.relu2(self.conv2(x)))
x = x.view(-1, 32 * 8 * 8)
x = self.relu3(self.fc1(x))
x = self.fc2(x)
return x
# 创建CNN模型的实例
model = CNN()
```
这个示例中,我们定义了一个简单的CNN模型,包含两个卷积层和两个全连接层。每个卷积层都由卷积操作、ReLU激活函数和最大池化层组成。最后的全连接层用于分类任务。你可以根据具体的应用场景和数据集,调整模型的结构和超参数来满足你的需求。
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