Question

What is classification in machine learning?

Answer 1

In machine learning and statistics, classification is the problem of identifying to which of a set of categories (sub-populations) a new observation belongs, on the basis of a training set of data containing observations (or instances) whose category membership is known.

Answer 2

In the terminology of machine learning, classification is considered an instance of supervised learning, i.e., learning where a training set of correctly identified observations is available.An algorithm that implements classification, especially in a concrete implementation, is known as a classifier.