Fig. 3: Performances of the AI system.
From: Development and evaluation of an artificial intelligence system for COVID-19 diagnosis

a Confusion matrix of the four diagnostic categories in the test cohort. b Confusion matrix of the CC-CCII test cohort. c Confusion matrix of the two diagnostic categories in MosMedData cohort. d–f DCA of the AI system in the test cohort for differential diagnosis of COVID-19, non-pneumonia, CAP, and influenza-A/B. g PR curves employed to assess the AI system performance on COVID-19 diagnosis.