What is Deep Learning?

Deep Learning is a technique that is a subset of machine learning (ML), that refers to training of Neural Networks. Machine Learning allows software applications to become more accurate at predicting outcomes without being explicitly programmed to do so. Deep Learning is preferred in cases where the data is unstructured and massive. It is inspired by the structure of the human brain-- thereby the analogy, "Neural Networks" . It is the most efficient way to deal with unstructured data, as it extracts patterns from the raw data using neural networks. Neural Networks were a field discovered around the early 1950s.