Supervised Learning: Classification

Learn the fundamental principles behind classification and implement classification using the sklearn library.

A common supervised learning problem is classification, applicable to data with discrete output labels. Examples of classification problems include:

  • Spam email detection

  • Face recognition

  • Plant species prediction

  • Human action recognition

In all examples mentioned above, we have a small set of classes or discrete labels to predict.

The following figure shows a binary classification problem having two classes:

  • The first class is represented by green circle points.

  • The second class is represented by blue square points.

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