The New York Times: “Artificial Intelligence is Stuck. Here’s How to Move it Forward.” 2018

To get computers to think like humans, we need a new A.I. paradigm, one that places “top down” and “bottom up” knowledge on equal footing. Bottom-up knowledge is the kind of raw information we get directly from our senses, like patterns of light falling on our retina. Top-down knowledge comprises cognitive models of the world and how it works.

Deep learning is very good at bottom-up knowledge, like discerning which patterns of pixels correspond to golden retrievers as opposed to Labradors. But it is no use when it comes to top-down knowledge. If my daughter sees her reflection in a bowl of water, she knows the image is illusory; she knows she is not actually in the bowl. To a deep-learning system, though, there is no difference between the reflection and the real thing, because the system lacks a theory of the world and how it works. Integrating that sort of knowledge of the world may be the next great hurdle in A.I., a prerequisite to grander projects like using A.I. to advance medicine and scientific understanding.

Gary Marcus

Almost exactly what I wrote a couple of months ago in response to a long article about Google’s AI initiatives. The research cannot go forward if it’s tied to commercial, short-term goals, where each company is trying to protect its own data and methods, instead of collaborating as researchers in fundamental physics do.