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Notes on AI Bias

ben-evans.com

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Re: Notes on AI Bias

#2
> Since Amazon’s current employee base skews male, the examples of ‘successful hires’ also, mechanistically, skewed male and so, therefore, did this system’s selection of resumés. Amazon spotted this and the system was never put into production.

Couldn't they have retrained the system with a 50/50 mix of males / females resumes ? Or restrict the use of the algorithm to sort male resumes ? Or maybe resumes don't actually correlate at all with success in Amazon ...

Re: Notes on AI Bias

#3
post #2

> Since Amazon’s current employee base skews male, the examples of ‘successful hires’ also, mechanistically, skewed male and so, therefore, did this system’s selection of resumés. Amazon spotted this and the system was never put into production. Couldn't they have retrained the system with a 50/50 mix of males / females resumes ? Or restrict the use of the algorithm to sort male resumes ? Or maybe resumes don't actua…

Sounds like an extraordinarily poor AI system if it depends on absolute numbers, and not per capita. And wouldn't the number of unsuccessful hires also skew male?

Re: Notes on AI Bias

#4
post #2

> Since Amazon’s current employee base skews male, the examples of ‘successful hires’ also, mechanistically, skewed male and so, therefore, did this system’s selection of resumés. Amazon spotted this and the system was never put into production. Couldn't they have retrained the system with a 50/50 mix of males / females resumes ? Or restrict the use of the algorithm to sort male resumes ? Or maybe resumes don't actua…

It does make you wonder how much AI will be .. AI and how much guidance for desired outcomes humans will give it.

Humans are pretty happy to create nonsensical results if it fits their goals... especially if it befits them. I wonder if with AI we do that to the point that it is somewhat irrelevant.

Re: Notes on AI Bias

#5
post #2

> Since Amazon’s current employee base skews male, the examples of ‘successful hires’ also, mechanistically, skewed male and so, therefore, did this system’s selection of resumés. Amazon spotted this and the system was never put into production. Couldn't they have retrained the system with a 50/50 mix of males / females resumes ? Or restrict the use of the algorithm to sort male resumes ? Or maybe resumes don't actua…

maybe, but this might also just be someone unwilling to commit to the sunk cost fallacy. You can spend time and money fixing it, or you can cut your losses and just stop trying to automate something that probably didn't need full automation to begin with.

Re: Notes on AI Bias

#6
post #2

> Since Amazon’s current employee base skews male, the examples of ‘successful hires’ also, mechanistically, skewed male and so, therefore, did this system’s selection of resumés. Amazon spotted this and the system was never put into production. Couldn't they have retrained the system with a 50/50 mix of males / females resumes ? Or restrict the use of the algorithm to sort male resumes ? Or maybe resumes don't actua…

If the only problem is that it mixes up male and female resumes, why not have it sort each into two piles and have a human recruiter perform the merge by picking the better applicant from the pair on top, repeatedly?

I have the suspicion that Amazons AI was factually correct, but politically wrong.

Re: Notes on AI Bias

#7
post #3
post #2

> Since Amazon’s current employee base skews male, the examples of ‘successful hires’ also, mechanistically, skewed male and so, therefore, did this system’s selection of resumés. Amazon spotted this and the system was never put into production. Couldn't they have retrained the system with a 50/50 mix of males / females resumes ? Or restrict the use of the algorithm to sort male resumes ? Or maybe resumes don't actua…

Sounds like an extraordinarily poor AI system if it depends on absolute numbers, and not per capita. And wouldn't the number of unsuccessful hires also skew male?

Consider the possibility that the (pre-AI system) probability of success for a female applicant is the same as the probability of success of a male applicant. You could make a "per capita" quota as a kind of goal. That's not a problem, but how would you make sure the quota was met?

The typical AI system doesn't work on the basis of selecting candidates entirely at random, pro rata, in order to meet a quota. It works on the basis of criteria for success. One thing it might learn (unfortunately) is that most posts at the company are filled by men.

Re: Notes on AI Bias

#8
post #2

> Since Amazon’s current employee base skews male, the examples of ‘successful hires’ also, mechanistically, skewed male and so, therefore, did this system’s selection of resumés. Amazon spotted this and the system was never put into production. Couldn't they have retrained the system with a 50/50 mix of males / females resumes ? Or restrict the use of the algorithm to sort male resumes ? Or maybe resumes don't actua…

That wouldn't matter if the KPI (worker performance) being predicted, which is inherently biased as well, was distributed differently among the balanced pool of applicants.

Re: Notes on AI Bias

#9
>>Now, suppose that 75% of the bad turbines use a Siemens sensor and only 12% of the good turbines use one (and suppose this has no connection to the failure). The system will build a model to spot turbines with Siemens sensors. Oops.

Given a statistically large enough sample, 2 outcomes: 1) The Siemens sensor actually is at fault. 2) The Siemens sensor is a part of a larger system, which is different in non-Siemens turbines, and that system is failing.

Either way, the model prediction on turbine failures is enhanced with that Siemens feature. But to even get to this granularity, you are diving into model explainability, or what features were important for each prediction. Here, you try to understand the black-box to find reasons for particular input->output.

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