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Supervised Machine Learning Proposal For The Estimation Of Human Biological Age Based On Forensic Dentistry

Published 2020-11-09
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Abstract

Colombian Criminal Procedure Code supports the appropriate use of dental pieces for the identification of individuals, so this technique is a tool of great importance for the administration of justice institutions. The classic methods of human identification, especially those used to estimate the biological age of death in adults such as Lamendin, have been developed using information from populations with morphological, metric and cultural characteristics different from those in Colombia. Consequently, Colombian forensic specialists have obtained high error rates in age estimation results. In this research, the biological age was initially calculated using the classic method of Lamendin. Subsequently, with the direct and indirect measures, also used in the Lamendin method, the training of machine learning techniques was carried out knowing the chronological age of the individuals in the sample. The results of the supervised machine learning regression techniques were compared: Vector Support Machines (SVM), Gaussian Regression Processes (GPR) and Ensembles of Trees (EoT), among others. A sample of 48 single-root dental pieces belonging to 45 individuals of Colombian nationality was studied, with chronological ages of death known within the age range from 19 to 81 years.

Additionally, the digital caliper gauge and the comparison microscope were used to measure the heights of the morphological characteristics in the dental pieces. The best accuracy in the estimation of the biological age was achieved with the GPR regression that showed a root mean square error (RMSE) of 3.37 years in the identification, which was compared with the accuracy reached by the Lamendin method with a RMSE of 15.52 years. This research shows that the GPR machine learning regression, especially for the Colombian case, is a valid tool for estimating the biological age of death with much lower errors than those achieved by traditional European techniques.

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References

Alvarado Garcia, A. M. & Salazar Maya, A. M., 2014. Análisis del concepto de envejecimiento. Gerokomos., 25(2), pp. 57-62.

Baviera, T., 2017. Técnicas para el análisis del sentimiento en Twitter: Aprendizaje Automático Supervisado y SentiStrength. Revista Dígitos, 1(3), pp. 33-50.

Bedoya, O. & Bustamante, S., 2011. CNN-PROMOTER, NEW CONSENSUS PROMOTER PREDICTION PROGRAM BASED ON NEURAL NETWORKS. Revista EIA, 8(15), pp. 153-164

Drucker, H. y otros, 1997. Support vector machine. Advances in neural information processing systems, Enero.pp. 155-161.

Foti, B. y otros, 2001. Limits of the Lamendin method in age determination. Forensic Science International, pp. 101-106.

Garcia Cambronero, C. & Gomez Moreno, I., 2006. Algoritmos de aprendizaje: KNN & KMEANS. [Inteligencia en Redes de Telecomuncicación, Universidad Carlos III de Madrid.

Guyon, I. & Elisseeff, A., 2003. An Introduction to Variable and Feature Selection. Journal of Machine Learning, pp. 1157-1182.

JCGM 100, 2008. Guide to the expression of uncertainty in measurement. En: J. C. f. G. i. Metrology, ed. Evaluation of measurement data. s.l.:s.n., pp. 36-37.

Krenzer, U., 2005. Odontología forense. En: Tomo VI Antropología Dental. Guatemala: CAFCA, pp. 52-58.

Krenzer, U., 2006. Cambio en las dientes. En: Tomo III Estimación de la edad Osteológica en adultos. Guatemala: CAFCA, pp. 14-16.

Lamendin, H. y otros, 1992. A simple Technique for age estimation in adult corpses: The two criteria dental method. Journal of forensic sciences, pp. 1373-1379.

Martinez Rodriguez, E., 2005. Errores frecuentes en la interpretación del coeficiente de determinación lineal. Anuario jurídico y económico escurialense, Issue 38, pp. 315-331.

Morales, D., Betancourt, C. & Mesa, . L., 2010. Cálculo de la incertidumbre de medida al equipo de movimiento rectilíneo uniforme del grupo de investigación dicoped. Scientia et Technica, Issue 46, pp. 206-210.

Pelaez Chávez, N., 2012. Aprendizaje no supervisado y el algoritmo WAKE-SLEEP en redes neuronales. s.l.:s.n.

Suárez Ponce , D. G., 2014. Reconstrucción osteobiográfica. Odontología Sanmarquina, pp. 44-46.

Pretelt de la Vega, S., 2004. Código de Procedimiento Penal. [En línea] Available at: https://www.oas.org/juridico/mla/sp/col/sp_col-int-text-cpp-2005.html [Último acceso: Noviembre 2017].

Prince, D. A. & Ubelaker, D. H., 2002. Application of Lamendin's adult dental aging Technique to a diverse skeletal sample. Journal Forensic Science, pp. 107-116.

Tobón, I. & Cortés, J., 2018. Identificación de instrumentos musicales de cuerdas pulsadas de la región andina colombiana en solo, mediante técnicas de aprendizaje de máquina. Revista EIA, 15(30), pp. 177-193.

Vapnik, V., Golowich, S. & Smola, A., 1997. Support Vector Method for Function Approximation, Regression Estimation, and Signal Processing. Advances in neural information processing systems, pp. 281-287.

Vilcapoma Guerra, H. J., 2012. Método dental modificado para la estimación de la edad en individuos adultos. Odontología Sanmarquina, pp. 27-30.

Willmott, C. & Matsuura, K., 2005. Advantages of the mean absolute error (MAE) over the root mean square error (RMSE) in assessing average model performance. Climate research, Volumen 30, pp. 79-82.

Witten, I. H., Frank, E. & Hall, M. A., 2011. Cross Validation. En: Data Mining Practical Machine Learning. USA: Morgan Kaufmann, pp. 152-154.

Witten, I. H., Frank, E. & Hall, M. A., 2011. Ensemble learning. En: Data Mining Practical Machine Learning. s.l.:Morgan Kaufmann, pp. 352-362.

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