Artificial intelligence (AI) refers to a broad class of systems that enable machines to mimic advanced human capabilities. Machine learning (ML) is a class of statistical methods that uses parameters from known existing data and then predicts outcomes on similar novel data, such as with recession, decision trees, state vector machines. Deep learning (DL) is a subset of ML that uses multiple layers and algorithms inspired by the structure and function of the brain, called artificial neural networks, to learn from large amounts of data. DL is used for such projects as computer vision, natural language processing, recommendation engines and others.