ShittyBeatlesFCPresAfter 9 months, the New Orleans Police Department’s use of facial recognition has resulted in zero arrests and multiple false positives
14 out of 15 requests were of black people. Facial recognition is notoriously bad with darker skin tones.
Racial Discrimination in Face Recognition Technology …harvard.edu/…/racial-discrimination-in-face-reco…
oct2pusMinor correction.
15 out of 15 requests were of black people. 14 of those requests were black men and 1 was a black woman.
15 out of 15 requests were of black people. 14 of those requests were black men and 1 was a black woman.
Thank you for your service!
Yeah, this same exact story keeps coming up for years now just with different names. Why anyone would think that both the ineffectiveness and racial bias in these systems either wouldn’t exist or will somehow go away eventually is beyond me. Just expensive and ineffective mass surveillance for the sake of it…
Yeah. Basic anything with a lower contrast, with shadows and backgrounds. And because shadows are dark, they have a lower contrast with other dark things.
TheSaneWriterActually, all 15 were of black people. 14 were of black men, one was a black woman.
Zero arrests as well.
New Orleans is pretty black, but thats just impressive.
bob_wileyWhile true, it is important to remember that New Orleans is a predominately black city, with ~58% of the population, compared to ~12% nationally. So it does make sense there would be more requests of black people than you may typically expect. Maybe not 14/15 high, but 9 out of 15 would be expected (if we assume all races commit crimes at the same rate).
some_guyHow about 15/15?
Yeah, but statistics is a b*tch.
We had a similar technology for a test run some years ago at a train station in Berlin, capital of Germany and largest city in the EU with 3.8M.
The results the government happily touted as a success were devastating. They had a true positive rate of 80% (and this was already cooked since they tested several systems but only reported the best results), which is really not that good to start with.
But they were also extremely proud of the false negative rate, which was below 0.1%. That doesn’t sound too bad, does it?
Well, let’s see…
True positive means you actually identified the people you were looking for. Now, I don’t know the number of people Berlin’s police is actively looking for, but it’s not that much. And the chances of one of them actually passing that very station are even worse. And out of that, you have 20% undetected. That’s one out of five. Great. If I were a terrorist, I would happily take that chance.
So now let’s have a look at the false negative rate, which means you incorrectly identified a totally harmless person as a terrorist/infected/whatever. The population for that condition is: everyone passing through that station.
Let’s assume there’s a 100k people on any given day (which IIRC is roughly half of what that station in Berlin actually has). 0.1% of 100k is 100 people, every day, who are mistakenly reported as „terrorists“. Yay.
I think you’ve gotten false negative wrong here: False negatives are terrorists who were not identified as such.
D’oh! 🤦♀️ Of course, thanks for correcting this.
P03 LockeDiscrimination is the wrong word. Technology has no morals or sense of justice. It is bias in the data that developers should have accounted for.
This seems shortsighted. You are basically asking people to police their own biases. That’s a tall ask for something no one can claim immunity from.
I am asking a group of scientists who should be very well-versed in statistics and weights, you know, one of the biggest components in a machine learning model, to account for how biased their data is when engineering their model.
It’s really not a hard ask.
So in other words technology is just as biased as the people who designed it
It can be an imported bias/descrimination. I still think that words fair.
Do you have a more accurate word?
I already said it: bias. It’s a common problem with LLMs and other machine learning models that model engineers need to watch out for.
It’s totally accurate though. It’s like the definition of systemic racism really. Think about housing or financial policy that disproportionately fails for minorities. They aren’t some Klan manifesto. Instead they just include banal qualifications and exemptions that end up at the same result.
You need to learn some critical race theory. Racist systems turn innocent intentions into racist actions. If a PhD student trains an AI model on only white people because the university only has white students, then that AI model is going to fail black people because black people were already failed by university admissions. Innocent intention plus racist system equals racist action.
Even CRT would call this “racial bias”, which is exactly what this is.
Ask the people who create the data sets that machine learning models train on how they feel about racism and get back to us
Who remembers the HP computer and was unable to identify black people? One of my favorite “oooph, that’s not a good look” tech fails of all time. At least the people in that video were having a good laugh about it.
www.youtube.com/watch?v=t4DT3tQqgRM
Holy hell, that was 13 years ago.
HP computers are racist
More recently, there was also Google Photos mistaking a photo of a black couple as “gorillas”, back in 2015.
www.bbc.com/news/technology-33347866
On a funnier note, there was also the AI tool turning a pixelated photo of Barack Obama into that of a white man.
Flying SquidHaha. He looks like Mike Nelson.