I've taken a look at a handful of CNN based models for COVID diagnosis via chest scans and I believe they are pure noise. The convolutional layers often get ac

I've taken a look at a handful of CNN based models for COVID diagnosis via chest scans and I believe they are pure noise. The convolutional layers often get activated nowhere near the actual chest, and they do not seem to grasp the anatomy in scans. The reason is, they were trained as pure "covid-not covid" detectors. Unless you have billions of real scans I don't think that's a good idea, which is why such models need some kind of an organ feature extractor first. Even trained humans suck at this task, and it's not because they miss details.