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@ajsadauskas Years ago, before the current AI craze, I helped a student prepare a talk on an AI project. Her team asked whether it’s possible to distinguish rooms with positive vs. negative affect — “That place is so nice / so depressing” — using the room’s color palette alone.

They gathered various photos of room on campus, and manually tagged them as having positive or negative affect. They wrote software to extract color palettes. And they trained an ML system on that dataset.

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