我有vgg19型号,我想微调一下.print("Number of layers in the base model: ", len(vgg_model.layers))
fine_tune_at = 100
# freeze all the layers before the `fine_tune_at
for i in range(k): val_data = train_data[i * num_val_samples: (i + 1) * num_val_samples] partial_train_data = np.concatenate([train_data[:i * num_val_samp