Machine learning : Machine learning - the biggest area in artificial intelligence - is a research discipline that studies algorithms that can learn a pattern or a model from a set of examples. Most of the algorithms can be framed in the language of statistics or probability theory, but are often mapped to simple linear algebraic operations. Machine learning can be further divided into supervised and unsupervised methods. In supervised machine learning, the training set is composed of vectors along with a label, and the task is to learn the correct label for unseen vectors. In unsupervised learning the training set is composed of just vectors, and the task is to find implicit relations between the elements of the dataset, a task that often goes under the name of clustering.