Magazine article Reason

Computers That Can Learn

Magazine article Reason

Computers That Can Learn

Article excerpt

Jeremy Howard is the founder and CEO of Enlitic, a company that uses "machine learning" to improve medical diagnostics. In December, he gave a TED Talk on "the wonderful and terrifying implications" of an algorithm known as "deep learning," which processes huge amounts of data in order to teach itself to understand pictures, read words, speak foreign languages, and more. Deputy Managing Editor Stephanie Slade spoke with Howard in January.

Q: Are computers that can learn a good or a bad thing?

A: In the last five years [deep learning] has become about 10,000 times faster and about 10 times more accurate at understanding the content of images. We're just starting to see it go down the same path at understanding human language. Overall, my expectation is that computers are on their way to becoming very good at a full range of perceptual capabilities.

Is this a good thing or a bad thing? It just depends how it's used. It could be a wonderful thing, because it could allow us to spend our time doing the things we want to do rather than the things we have to do, which is, I think, what humanity has been aiming at for thousands of years. But on the bad side, that by definition puts people out of jobs. Eventually, it puts everybody out of a job.

Longer term, when you have machines that are extremely capable, they can be either misused intentionally or misprogrammed unintentionally and create great harm.

Q: What would you say is the most exciting application of this technology?

A: For me, the most immediate one is in medicine. Medicine is currently more art than science. We describe it as the practice of medicine, not the science of medicine. Which is fine, but there is a lot of data that people have to bring together in order to make an appropriate diagnostic and treatment recommendation. With computers that can see and read, computers could potentially bring tens of millions of pieces of data together and make a good diagnostic or treatment decision. …

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