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. 2013 Apr 18;20(4):778–786. doi: 10.1136/amiajnl-2012-001588

Figure 1.

Figure 1

The diagram depicts the one-plus-class support vector machine (OP-SVM) in a two-dimensional toy example. Small circles and crosses represent negative and positive data points, respectively. The hyperplane is chosen to separate the circles from the origin with maximal margin. The circle between the hyperplane and the origin and the cross on the other side of the hyperplane are penalized in the objective function.