Free access to paper on evaluating multiple nuclear forensic algorithms

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  • Author: Statistics Views
  • Date: 08 April 2019

Each week, we select a recently published article and offer either free access or highlight a recent open access publication. This week's is from Applied Stochastic Models in Business and Industry and is available from the November/December 2018 issue.

Bayesian design of experiments for logistic regression to evaluate multiple nuclear forensic algorithms

Kevin R. Quinlan and Christine M. Anderson‐Cook

Applied Stochastic Models in Business and Industry, Volume 34, Issue 6, November/December 2018, pages 908-921

DOI: https://doi.org/10.1002/asmb.2359

thumbnail image: Free access to paper on evaluating multiple nuclear forensic algorithms

When evaluating the performance of several forensic classification algorithms, it is desirable to construct a design that considers a variety of performance levels for each of the algorithms. We describe a strategy to use Bayesian design of experiments with multiple prior estimates to capture anticipated performance. Our goal is to characterize results from the different classification algorithms as a function of multiple explanatory variables and use this to choose a design about which units to test. Bayesian design of experiments has been successful for generalized linear models, including logistic regression models. We develop methodology for the case where there are several potentially non-overlapping priors for anticipated performance under consideration. The weighted priors method performs well for a broad range of true underlying model parameter choices and is more robust when compared to other candidate design choices. Additionally, we show how this can be applied in the multivariate input case and provide some useful summary measures. The shared information plot is used to evaluate design point allocation, and the D‐value difference plot allows for the comparison of design performance across multiple potential parameter values in higher dimensions. We illustrate the methods with several examples.

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