Machine Learning Crash Course: Part 3 · ML@B

How someone might identify a dog. Important inputs that are given a lot of weight are highlighted in red. Notice how the neurons are organized into layers, where the further right the neurons are, the more abstract the input? In other words, the neurons on the left ask questions about general shapes and lines, whereas the neurons on the right ask questions about objects such as eyes or fur. Trained neural networks function in a very similar way, although they arrive at this conclusion after training with a lot of data.