在PyTorch中测试LSTM的实现可以通过以下步骤进行:
import torch
import torch.nn as nn
class LSTMModel(nn.Module):
def __init__(self, input_size, hidden_size, num_layers, output_size):
super(LSTMModel, self).__init__()
self.hidden_size = hidden_size
self.num_layers = num_layers
self.lstm = nn.LSTM(input_size, hidden_size, num_layers, batch_first=True)
self.fc = nn.Linear(hidden_size, output_size)
def forward(self, x):
h0 = torch.zeros(self.num_layers, x.size(0), self.hidden_size).to(device)
c0 = torch.zeros(self.num_layers, x.size(0), self.hidden_size).to(device)
out, _ = self.lstm(x, (h0, c0))
out = self.fc(out[:, -1, :])
return out
input_size = 10
hidden_size = 20
num_layers = 2
output_size = 1
model = LSTMModel(input_size, hidden_size, num_layers, output_size)
model.load_state_dict(torch.load('lstm_model.pth'))
test_data = torch.randn(1, 5, input_size) # 输入数据形状为(batch_size, sequence_length, input_size)
model.eval()
with torch.no_grad():
output = model(test_data)
print(output)
这样,你就可以在PyTorch中测试LSTM的实现了。请注意,上述代码仅为示例,实际使用时可能需要根据具体情况进行适当的修改和调整。
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