wgan.train(data_loader) AttributeError:'WGAN'object has no attribute 'train'
时间: 2023-10-16 21:33:00 浏览: 32
这个错误可能是因为你的WGAN类没有定义'train'方法。请确保你的WGAN类中定义了'train'方法并且接受参数'data_loader'。例如:
```
class WGAN:
def __init__(self):
# 初始化
...
def train(self, data_loader):
# 训练代码
...
```
如果你已经定义了'train'方法,那么请检查是否有拼写错误或者其他语法错误。
相关问题
model = keras.models.load_model('C:/Users/刘子源/Desktop/Anime-Colorization-master/WGAN-GP/WGANGP_model.py')
这段代码有问题,`load_model` 方法需要传入已经保存的模型文件路径,而你传入的是一个 Python 文件的路径。你需要先使用 `model.save('model.h5')` 方法将模型保存到一个 H5 文件中,然后再使用 `load_model` 方法加载 H5 文件。具体代码如下:
```python
from tensorflow import keras
# 先保存模型到 H5 文件
model.save('model.h5')
# 加载模型
loaded_model = keras.models.load_model('model.h5')
```
基于pytorch,编写一段WGAN的代码
当然可以!以下是一个用PyTorch编写的简单WGAN代码示例:
```python
import torch
import torch.nn as nn
import torch.optim as optim
from torch.autograd import grad
from torch.utils.data import DataLoader
# Generator Model
class Generator(nn.Module):
def __init__(self, input_dim, output_dim):
super(Generator, self).__init__()
self.fc = nn.Linear(input_dim, 128)
self.relu = nn.ReLU()
self.fc2 = nn.Linear(128, output_dim)
def forward(self, x):
x = self.fc(x)
x = self.relu(x)
x = self.fc2(x)
return x
# Critic Model
class Critic(nn.Module):
def __init__(self, input_dim):
super(Critic, self).__init__()
self.fc = nn.Linear(input_dim, 128)
self.relu = nn.ReLU()
self.fc2 = nn.Linear(128, 1)
def forward(self, x):
x = self.fc(x)
x = self.relu(x)
x = self.fc2(x)
return x
# WGAN Trainer
class WGAN:
def __init__(self, input_dim, output_dim, critic_iterations=5, batch_size=64, learning_rate=0.0001):
self.generator = Generator(input_dim, output_dim)
self.critic = Critic(output_dim)
self.critic_iterations = critic_iterations
self.batch_size = batch_size
self.device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
self.generator.to(self.device)
self.critic.to(self.device)
self.generator_optimizer = optim.RMSprop(self.generator.parameters(), lr=learning_rate)
self.critic_optimizer = optim.RMSprop(self.critic.parameters(), lr=learning_rate)
def train(self, data_loader, num_epochs):
for epoch in range(num_epochs):
for i, real_data in enumerate(data_loader):
real_data = real_data.to(self.device)
# Critic Training
for _ in range(self.critic_iterations):
self.critic_optimizer.zero_grad()
noise = torch.randn(self.batch_size, input_dim).to(self.device)
fake_data = self.generator(noise)
critic_loss = self.critic(fake_data).mean() - self.critic(real_data).mean()
critic_loss.backward()
self.critic_optimizer.step()
# Clip critic weights
for p in self.critic.parameters():
p.data.clamp_(-0.01, 0.01)
# Generator Training
self.generator_optimizer.zero_grad()
noise = torch.randn(self.batch_size, input_dim).to(self.device)
fake_data = self.generator(noise)
generator_loss = -self.critic(fake_data).mean()
generator_loss.backward()
self.generator_optimizer.step()
# Print losses
if i % 100 == 0:
print("[Epoch %d/%d] [Batch %d/%d] Critic Loss: %.4f Generator Loss: %.4f" %
(epoch, num_epochs, i, len(data_loader), critic_loss.item(), generator_loss.item()))
# Usage example
input_dim = 100
output_dim = 784
# Load your dataset and create a DataLoader
dataset = ...
data_loader = DataLoader(dataset, batch_size=64, shuffle=True)
wgan = WGAN(input_dim, output_dim)
wgan.train(data_loader, num_epochs=10)
```
请注意,这只是一个简单的WGAN实现示例,你可能需要根据你的具体任务进行适当的修改和调整。同时,确保你的数据集已经正确加载和预处理,并用适当的损失函数和优化器进行训练。