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Handwritten digit classification

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  • Peña Sánchez de Rivera, Daniel
  • Lillo Rodríguez, Rosa Elvira
  • Giuliodori, Andrea

Abstract

Pattern recognition is one of the major challenges in statistics framework. Its goal is the feature extraction to classify the patterns into categories. A well-known example in this field is the handwritten digit recognition where digits have to be assigned into one of the 10 classes using some classification method. Our purpose is to present alternative classification methods based on statistical techniques. We show a comparison between a multivariate and a probabilistic approach, concluding that both methods provide similar results in terms of test-error rate. Experiments are performed on the known MNIST and USPS databases in binary-level image. Then, as an additional contribution we introduce a novel method to binarize images, based on statistical concepts associated to the written trace of the digit

Suggested Citation

  • Peña Sánchez de Rivera, Daniel & Lillo Rodríguez, Rosa Elvira & Giuliodori, Andrea, 2011. "Handwritten digit classification," DES - Working Papers. Statistics and Econometrics. WS ws111712, Universidad Carlos III de Madrid. Departamento de Estadística.
  • Handle: RePEc:cte:wsrepe:ws111712
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    1. Klaus Nordhausen, 2009. "The Elements of Statistical Learning: Data Mining, Inference, and Prediction, Second Edition by Trevor Hastie, Robert Tibshirani, Jerome Friedman," International Statistical Review, International Statistical Institute, vol. 77(3), pages 482-482, December.
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