OneVersusAll.md (599B)
1 # One Versus All (OvA) or One Versus Rest (OvR) 2 3 ML D2 4 5 **Definition:** One versus all classifiers are a sequence of binary classifiers that output probabilities where the highest probability is then selected as the output. 6 7 Think of this as a series of SVC or SGD classifiers that output some likelihood that the current input is part of a particular class. You then send the input into each model and whichever one outputs the highest probability is the class that the input belongs to. 8 9 See also [OneVersusOne](OneVersusOne.md) for another strategy to put together models to do classification.