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Amazon's Just Walk Out technology relies on hundreds of workers in India watching you shop
(www.businessinsider.com)
This is a most excellent place for technology news and articles.
Machine Learning, no matter how well trained or advanced, is just doing a make-em-up.
Besides that, in this case the experiment has been going on for years and humans were still doing like 70% of the work. It was a failure, that's why Amazon shut it down