Journal Article

Recommendations for using the relative operating characteristic (ROC)

Pontius, Robert Gilmore Jr, Parmentier, Benoit

2014

Overview

The relative operating characteristic (ROC) is a widely-used method to measure diagnostic signals including predictions of land changes, species distributions, and ecological niches. The ROC measures the degree to which presence for a Boolean variable is associated with high ranks of an index. The ROC curve plots the rate of true positives versus the rate of false positives obtained from the comparison between the Boolean variable and multiple diagnoses derived from thresholds applied to the index. The area under the ROC curve (AUC) is a summary metric, which is commonly reported and frequently criticized. Our manuscript recommends four improvements in the use and interpretation of the ROC curve and its AUC by: (1) highlighting important threshold points on the ROC curve, (2) interpreting the shape of the ROC curve, (3) defining lower and upper bounds for the AUC, and (4) mapping the density of the presence within each bin of the ROC curve. These recommendations encourage scientists to interpret the rich information that the ROC curve can reveal, in a manner that goes far beyond the potentially misleading AUC. We illustrate the benefit of our recommendations by assessing the prediction of land change in a suburban landscape.

• Publisher: Springer-Verlag,Springer Netherlands,Springer,Springer Nature B.V
• Subject: Animal, plant and microbial ecology / Applied ecology / biogeography / Biological and medical sciences / Biomedical and Life Sciences / Ecological niches / Ecology / Environmental Management / Fundamental and applied biological sciences. Psychology / General aspects / Land use / Landscape Ecology / Landscape/Regional and Urban Planning / Life Sciences / Nature Conservation / niches / prediction / scientists / Sustainable Development / Upper bounds