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March 2011 Construction and evaluation of classifiers for forensic document analysis
Christopher P. Saunders, Linda J. Davis, Andrea C. Lamas, John J. Miller, Donald T. Gantz
Ann. Appl. Stat. 5(1): 381-399 (March 2011). DOI: 10.1214/10-AOAS379


In this study we illustrate a statistical approach to questioned document examination. Specifically, we consider the construction of three classifiers that predict the writer of a sample document based on categorical data. To evaluate these classifiers, we use a data set with a large number of writers and a small number of writing samples per writer. Since the resulting classifiers were found to have near perfect accuracy using leave-one-out cross-validation, we propose a novel Bayesian-based cross-validation method for evaluating the classifiers.


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Christopher P. Saunders. Linda J. Davis. Andrea C. Lamas. John J. Miller. Donald T. Gantz. "Construction and evaluation of classifiers for forensic document analysis." Ann. Appl. Stat. 5 (1) 381 - 399, March 2011.


Published: March 2011
First available in Project Euclid: 21 March 2011

zbMATH: 1220.62171
MathSciNet: MR2810402
Digital Object Identifier: 10.1214/10-AOAS379

Keywords: Bayesian statistics , ‎classification‎ , cross-validation , handwriting identification

Rights: Copyright © 2011 Institute of Mathematical Statistics


Vol.5 • No. 1 • March 2011
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