How normal am I?

Re:How normal am I? by bko on Tuesday July 05, 2022 @11:40AM (#31989540)

I played around with Amazon's Rekognition software. I took one of those youtube videos where someone takes a picture of themselves every day for 10 years. It was fairly ideal conditions (consistent lighting, same pose for the most part) but the kid also went from 12 years old to 22, so his face definitely changed a lot. I used the first image as the image to compare the rest to (12 years old at the time), and I was surprised that it got pretty much almost all of them with a high degree of confidence (80%+). And the 80% ones were terrible lighting, sunglasses or an image of his girlfriend he slipped in there.

Even the sunglasses, beard, face paint, bad lighting or puberty didn't throw off the model.

The open source dlib model was considerably worse, but AWS Rekognition was incredible

https://mleverything.substack.com/p/how-facial-recognition-w...

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Re:How normal am I? by april_22 on Tuesday July 05, 2022 @12:56PM (#31990706)

There was this one incident in China where the facial recognition system mistaked the face of a chinese celebrity on a bus for a jaywalker... so the system isn't perfect for special conditions/environments yet. However I do believe that results today are already outstanding and will only get better.

https://www.theverge.com/2018/11/22/18107885/china-facial-re... https://you.com/search?q=facial+recognition+in+china

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Re:How normal am I? by bko on Tuesday July 05, 2022 @02:28PM (#31991913)

Funny you should say that. In another post I compared sitting congressmen to convicted felons

- 440 images of congressmen

- 1,756 mugshots

- 10 mismatches (?) with 70+% certainty

The highest was 86%, but to be fair, I wouldn't be able to tell you confidently for all of them that the convicts aren't the same person. And under 80% should be suspect anyway. It's just that you need to use the right statistical methods when comparing a person to a large pool because you'll have spurious matches.

https://mleverything.substack.com/p/how-facial-recognition-w...

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Re:How normal am I? by ztjio on Wednesday July 06, 2022 @10:12PM (#32009223)

> under 80% should be suspect anyway

This attitude disturbs me more than any other single aspect of the mass idiocy around adopting AI for critical things. 80% is horribly low accuracy for anything even remotely important.

For example, imagine you went to a store and could tell the cashier any price for anything so long as it was 80% accurate, as in, 80% of the original price. Just a 20% potential discount, nbd.

Or put another way, 80% of your items had to have a perfectly accurate price but you bought 5 items, 1 of them was a PlayStation 5 you priced at $1. It's fine. The rest were accurate!

80% is extremely low accuracy. It's absurd to think that's a good level to cut things off. We should demand systems like these demonstrate 99% or better accuracy. Until then they should be illegal to apply in any scenario where a decision is made about another person.

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Re:How normal am I? by cbau on Tuesday July 05, 2022 @02:12PM (#31991698)

Wow, the more insane story to me here is that they flash your face, name, and ID number on a public screen if you're caught jaywalking. How dystopian.

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Re:How normal am I? by mrandish on Wednesday July 06, 2022 @12:06PM (#32002950)

If public shaming like that was attempted in the US, I imagine in some circles it would become a goal to repost on social media a photo of yourself on the system jaywalking. Probably holding a sign with some meme.

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