Pattern recognition is the term given to the science of automating the classification of input into pre-determined categories, or on the other hand, of being able to recognise particular categories of input by their characteristics.
Pattern recognition is the assignment of a label to a given input value. It is a kind of classification task, such that an input is classified to pre-trained class. Pattern recognition is studied in many fields, including psychology, psychiatry, ethology, cognitive science, traffic flow and computer science.
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