Or it's a tech-literate journalist who knows that usually it's the latter and they have vague plans to transition to the former later.

always mturk all the way down

I thought so too, but the article says this:

> 700 out of 1,000 Just Walk Out sales required human reviewers as of 2022.

If you required a high accuracy like 99.9% to charge a customer, you could have a system that was mostly automatic but still needed human review when the model isn’t confident enough. It’s hard to know exactly what this means without a lot more details, which Amazon is unlikely to provide.

Wonder if that 30% include the cases where someone walks in, strolls around, and walks out without buying something? Which I see people do all the time, interested in the concept.

> 700 out of 1,000 Just Walk Out sales required human reviewers as of 2022.

Or not ...

If it was just a matter of building up a large enough training set and corresponding model do you really think Amazon would be abandoning a technology they spent so much time, money and resources on, in a somewhat embarassing manner?