loss and gradient backpropagation

[lk0429]

Sorry to bother you, I didn't find the loss function and gradient backpropagation process while reading the code. I would like to ask if the initial CAM can be obtained directly? No training required? I see that there is a gradient backpropagation process in the model diagram. If the initial CAM is obtained through training, in which part of the code are the loss function and gradient backpropagation process located? Thanks！

[linyq2117]

Thanks for your interest!

Our method is based on the pre-trained CLIP model and does not require additional training. We use GradCAM to obtain the CAM, which is based on the gradient of target classes. You can refer to GradCAM for its main idea.

[lk0429]

Sorry to bother you, I didn't find the loss function and gradient backpropagation process while reading the code. I would like to ask if the initial CAM can be obtained directly? No training required? I see that there is a gradient backpropagation process in the model diagram. If the initial CAM is obtained through training, in which part of the code are the loss function and gradient backpropagation process located? Thanks！

Thanks for your interest!

Our method is based on the pre-trained CLIP model and does not require additional training. We use GradCAM to obtain the CAM, which is based on the gradient of target classes. You can refer to GradCAM for its main idea.