self.optimizer.minimize
时间: 2023-05-03 10:01:44
浏览: 63
b'self.optimizer.minimize' 是指在 Python [代码](https://geek.csdn.net/educolumn/1572ef9b473b4e00f6b2bf6d428b7c27?spm=1055.2569.3001.10083)中使用了某个[对象](https://geek.csdn.net/educolumn/04c51611e4b730957464192e0307b82c?spm=1055.2569.3001.10083)的 optimize 方法,并调用了其中的 minimize [[函数](https://geek.csdn.net/educolumn/2319d2a62911adc34b96ea572d8225a2?spm=1055.2569.3001.10083)](https://geek.csdn.net/educolumn/ba94496e6cfa8630df5d047358ad9719?dp_token=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpZCI6NDQ0MDg2MiwiZXhwIjoxNzA3MzcxOTM4LCJpYXQiOjE3MDY3NjcxMzgsInVzZXJuYW1lIjoid2VpeGluXzY4NjQ1NjQ1In0.RrTYEnMNYPC7AQdoij4SBb0kKEgHoyvF-bZOG2eGQvc&spm=1055.2569.3001.10083)。这可能涉及到优化[算法](https://geek.csdn.net/educolumn/2354e3486d804fe718dd230739581535?spm=1055.2569.3001.10083)或者机器学习模型训练中的参数优化等。
相关问题
self.a_train_op = tf.train.AdamOptimizer(self.learning_rate).minimize(-self.a_loss)用pytorch实现
在PyTorch中,您可以使用以下代码实现相同的操作:
import torch
import torch.nn as nn
import torch.optim as optim
class MyModel(nn.Module):
def __init__(self, input_size, output_size):
super(MyModel, self).__init__()
self.fc = nn.Linear(input_size, output_size)
self.loss_fn = nn.CrossEntropyLoss()
def forward(self, x):
out = self.fc(x)
return out
def train_step(self, x, y, learning_rate):
self.optimizer = optim.Adam(self.parameters(), lr=learning_rate)
self.optimizer.zero_grad()
out = self.forward(x)
loss = self.loss_fn(out, y)
loss.backward()
self.optimizer.step()
return loss.item()
```