title: How to load the Data in Pytorch
body: <p>'dataloader = DataLoader(dataset, batch_size=4, shuffle=True)</p>
  <p>total_samples = len(dataset)</p>
  <p>n_iterations = total_samples//4</p>
  <p>print(total_samples, n_iterations)'</p>
  <p>How can i iterate over all Data to get one Image and one Score? How to create a Model with the name resnet50?</p>