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Development of a Mathematical Formula for the Calculation of Fingerprint Probabilities Based on Individual Characteristics

James W. Osterburg, T. Parthasarathy, T. E. S. Raghavan and Stanley L. Sclove
Journal of the American Statistical Association
Vol. 72, No. 360 (Dec., 1977), pp. 772-778
DOI: 10.2307/2286458
Stable URL: http://www.jstor.org/stable/2286458
Page Count: 7
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Development of a Mathematical Formula for the Calculation of Fingerprint Probabilities Based on Individual Characteristics
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Abstract

A method is developed for assigning a probability to a fingerprint, including a partial print, based on the number of individual (Galton) characteristics present. A multinomial model is used, the categories of which are the individual characteristics and combinations of them. The negative of the logarithm of the probability of any particular configuration is related to the entropy function of information theory. The parameters of the model are estimated from data (fingerprints). Confidence bounds are obtained for the negative log probability of any configuration.

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