3 ms·
> paying "attention" to blood vessels and other structures that are relevant to humans Why is that necessarily a good thing? The point of machine learning is t
by epmaybe 9y ago
> paying "attention" to blood vessels and other structures that are relevant to humans
Why is that necessarily a good thing? The point of machine learning is to unveil relationships that we may or may not have thought of. For all we know there's a structure we've never looked at that provides better correlates with disease, and if a model pays attention to that it would be an equally promising sign.
I understand that in medical research it would be best to have a physiologically relevant correlate that is being recognized by the model, but it doesn't mean that we should completely disregard the other pixels that a model could find important either.
- carbocation 9y agoI agree with you. It's a double edged sword. It's good because if you want to put something like this into clinical use, physicians are going to be skeptical if it's not interpetable. It's bad because, if humans have already identified the relevant structural relationships, there is less likely to be a big breakthrough. Nevertheless, one could imagine a model identifying features that humans wouldn't consider even within the structures that we already know about.