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It's not an issue of resolution but of generalizability. Populations and scanners shift over time and the biggest issue in clinical AI is the changing data distribution, such as data acquired at different times at different institution. Medical devices (which AI software is considered) is also more regulated than self-driving cars.

They mention a GAN which is a generative model and currently no good measure of evaluation (beside metrics like Fréchet inception distance).

The article only mentions a qualitative comparison but no incorporation of causal / physic based-modeling that I would imagine would be important in astronomy.

Easy enough for GAN to synthesize realistic, high-resolution images without any underlying model of reality / casuality.

Watson missed the DL train and IBM should have partnered with a company that had experience in getting medical devices through the FDA (like MSFT are doing with Nuance).

There are healthcare startups around fraud detection, reducing no-shows, telemedicine, drug discovery, and patient triage.

Just radiology alone is prime for ML due to existing digital infrastructure and clinical use cases.

The trend in FDA cleared AI products is pretty clear over the past decade. https://models.acrdsi.org/

What would a principled reason for association look like beyond mere convention? Language is used by different groups to mean different things. Machine learning, logic, control, robotics, linguistics, and cognitive science were publishing in artificial intelligence venues decades ago. Now AI seems to just mean DL/RL.