Nomograms for Visualizing Linear Support Vector Machines

Aleks Jakulin and Martin Možina and Janez Demšar and Ivan Bratko and Blaz Zupan (2004) Nomograms for Visualizing Linear Support Vector Machines.

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Abstract

Support vector machines are often considered to be black box learning algorithms. We show that for linear kernels it is possible to open this box and visually depict the content of the SVM classifier in high-dimensional space in the interactive format of a nomogram. We provide a cross-calibration method for obtaining probabilistic predictions from any SVM classifier, which control for the generalization error. If we employ logistic regression for calibration, the effect of each attribute can be represented on the log odds ratio scale. We also describe an approach to capturing nonlinear effects of continuous attributes with an ordinary linear kernel, and adapt the nomogram so that these nonlinear effects can be graphically rendered.

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• Nomograms for Visualizing Linear Support Vector Machines (deposited 27 Oct 2004)[Currently Displayed]
  • Nomograms for Visualizing Support Vector Machines (deposited 09 Jun 2006)

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