[D] What study design is this?

Was just wondering if someone could help me identify what study design is being used:

A computer has been taught how to identify disease A from clinical photos. It is then fed clinical photos in a random order without knowing whether the patient is affected with disease A and asked to give a diagnosis (i.e., affected with disease or not).

Multiple different computer models were created to find the most effective one.

Based on the computer's performance, an area under …

design machinelearning study