Exploring the CAESAR database using dimensionality reduction techniques

Olga Mendoza-Schrock; Michael L. Raymer

doi:10.1117/12.922577

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16 May 2012 Exploring the CAESAR database using dimensionality reduction techniques

Olga Mendoza-Schrock, Michael L. Raymer

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Proceedings Volume 8402, Evolutionary and Bio-Inspired Computation: Theory and Applications VI; 84020M (2012) https://doi.org/10.1117/12.922577
Event: SPIE Defense, Security, and Sensing, 2012, Baltimore, Maryland, United States

Abstract

The Civilian American and European Surface Anthropometry Resource (CAESAR) database containing over 40 anthropometric measurements on over 4000 humans has been extensively explored for pattern recognition and classification purposes using the raw, original data [1-4]. However, some of the anthropometric variables would be impossible to collect in an uncontrolled environment. Here, we explore the use of dimensionality reduction methods in concert with a variety of classification algorithms for gender classification using only those variables that are readily observable in an uncontrolled environment. Several dimensionality reduction techniques are employed to learn the underlining structure of the data. These techniques include linear projections such as the classical Principal Components Analysis (PCA) and non-linear (manifold learning) techniques, such as Diffusion Maps and the Isomap technique. This paper briefly describes all three techniques, and compares three different classifiers, Naïve Bayes, Adaboost, and Support Vector Machines (SVM), for gender classification in conjunction with each of these three dimensionality reduction approaches.

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Olga Mendoza-Schrock and Michael L. Raymer "Exploring the CAESAR database using dimensionality reduction techniques", Proc. SPIE 8402, Evolutionary and Bio-Inspired Computation: Theory and Applications VI, 84020M (16 May 2012); https://doi.org/10.1117/12.922577

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