37 Reasons why your Neural Network is not workingThe network had been training for the last 12 hours. It all looked good: the gradients were flowing and the loss was decreasing. But then came the predictions: all zeroes, all background, nothing detected. “What did I do wrong?” — I asked my computer, who didn’t answer. Where do you start checking if your model is outputting garbage (for example predicting the mean of all outputs, or it has really
