Because a dog’s sense of smell is a thousand times more sensitive than a human’s, canines are regularly used to detect bombs and other explosives. They sniff out illegal drugs and endangered plants, and they can use their snouts to reveal ailments such as cancer, diabetes and seizures.
The goal of machine learning is to make a computer learn just like a baby—it should get better at tasks with experience. In fact, computers best humans at tasks like chess and numerical calculations.