Area under the free-response ROC curve (FROC) and a related summary index.

ABSTRACT: Free-response assessment of diagnostic systems continues to gain acceptance in areas related to the detection, localization, and classification of one or more "abnormalities" within a subject. A free-response receiver operating characteristic (FROC) curve is a tool for characterizing the performance of a free-response system at all decision thresholds simultaneously. Although the importance of a single index summarizing the entire curve over all decision thresholds is well recognized in ROC analysis (e.g., area under the ROC curve), currently there is no widely accepted summary of a system being evaluated under the FROC paradigm. In this article, we propose a new index of the free-response performance at all decision thresholds simultaneously, and develop a nonparametric method for its ana

SUBMITTER: Bandos AI 

PROVIDER: S-EPMC2776072 | biostudies-literature | 2009 Mar

REPOSITORIES: biostudies-literature