loss

How is the YOLOv8 best loss model selected by the trainer class? Question: From the YOLOv8 documentation, it is not clear to me which loss metric the YOLOv8 trainer class uses in determining the best loss model that is saved in a training run. Is it based on the validation or training loss? Specifically, when …

Cross Entropy in PyTorch Question: Cross entropy formula: But why does the following give loss = 0.7437 instead of loss = 0 (since 1*log(1) = 0)? import torch import torch.nn as nn from torch.autograd import Variable output = Variable(torch.FloatTensor([0,0,0,1])).view(1, -1) target = Variable(torch.LongTensor([3])) criterion = nn.CrossEntropyLoss() loss = criterion(output, target) print(loss) Asked By: MBT || …