Just working on some Open Source Projects regarding Attention models.
pranoyr / cnn-lstm Goto Github PK
View Code? Open in Web Editor NEWCNN LSTM architecture implemented in Pytorch for Video Classification
License: MIT License
CNN LSTM architecture implemented in Pytorch for Video Classification
License: MIT License
when training, the avg_loss = train_loss / log_interval, while train_loss is always 0
Thanks for your great work!
I followed the step and running the code successfully.
Unfortunately, the learning curve image shown below show that the accuracy drop to 60% validation accuracy,
where there is a 30% gap with your learning curve.
I don't understand why there are only four label in your tensorboard visualization.
All in all, I'm wondering what's the performance you get while training for 101 labels of UCF101,
and make sure I got anything wrong. Thanks
hello, I do it according to readme,the code is running well,but the results is always 50%. (in fact ,the video in the data are same, I replace the one video. now the video are different,but the results is still 50%),please help me,thank you
Hi,
I saw the line with torch.no_grad() in the cnnlstm.py file, this means that the weight of resnet will not be affected by backward. If I delete with torch.no_grad(), the backward will update the weights of cnn and lstm at the same time?
Hi,
The following code is fine-tuned according to the code you wrote. When I only use resnet for training, the loss can drop normally, but when I use resnet+lstm, the loss has been around 0.6 and does not drop. Could you please guide me?
class CNNLSTM(nn.Module):
def __init__(self, num_classes=2):
super(CNNLSTM, self).__init__()
self.resnet = resnet34(pretrained=True)
self.resnet.fc = nn.Sequential(nn.Linear(self.resnet.fc.in_features, 300))
self.lstm = nn.LSTM(input_size=300, hidden_size=256, num_layers=3)
self.fc1 = nn.Linear(256, 128) # Fully connected layer
self.fc2 = nn.Linear(128, num_classes) # Fully connected layer
def forward(self, x_3d):
hidden = None
x_3d = x_3d.unsqueeze(0) # add
x_ = list()
for t in range(x_3d.size(1)):
# with torch.no_grad():
x = self.resnet(x_3d[:, t, :, :, :]) # x_3d[:, t, :, :, :].shape: [1,3,224,224]
out, hidden = self.lstm(x.unsqueeze(0), hidden)
x = self.fc1(out[:, -1, :])
x = F.relu(x)
x = self.fc2(x)
if t==0:
x_ = x
else:
x_ = torch.cat([x_, x], dim=0)
return x_
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