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One Versus One vs. One Versus All in Classification Models


In this quick overview, we introduce you to the concepts of one-versus-one and one-versus-all in classification. In classification models, you will often want to predict one class from another. This is called binary classification, or one-versus-one. But what if you have more than two classes to predict? This is where one-versus-all is introduced.

What you’ll learn

  • Difference between one-versus-one and one-versus-all classification techniques
  • Where to use a particular classification technique
Rebecca Merrett
Rebecca holds a bachelor’s degree of information and media from the University of Technology Sydney and a post graduate diploma in mathematics and statistics from the University of Southern Queensland. She has a background in technical writing for games dev and has written for tech publications.

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