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A comment on Uber discovered they’d been defrauded out of 2/3 of their ad spend. Parent comment

Re:Uber discovered they’d been defrauded out of 2/3 of their... by rtkwe on Monday January 04, 2021 @10:05AM (#25632146)
Honestly this might be a good thing, it seems to show that ad networks don't have or at least don't provide your actual purchase history to the ad space buyers because given that info they probably wouldn't be spamming someone who just bought a $thing with ads for $thing_but_from_us. As annoying as it is it's probably better than the alternative of ubiquitous access to your purchase history.
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Re:Uber discovered they’d been defrauded out of 2/3 of their... by edgyquant on Monday January 04, 2021 @01:04PM (#25635342)
Well we know these places buy your credit card history, so it’s more proof that their ad system is shitty and their customers should make a fuss.
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Re:Uber discovered they’d been defrauded out of 2/3 of their... by disgruntledphd2 on Monday January 04, 2021 @10:30AM (#25632526)
Yup, this is the problem. There is no centralised log of what people bought, which is what you'd need to actually fix this problem.
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Re:Uber discovered they’d been defrauded out of 2/3 of their... by joshspankit on Monday January 04, 2021 @11:27AM (#25633481)
A good argument, but it happens on Amazon when the search, research, and purchase were all on Amazon.
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Re:Uber discovered they’d been defrauded out of 2/3 of their... by rchaud on Monday January 04, 2021 @12:39PM (#25634936)
Yup, I get "buy it again" prompts on nearly all of my recent purchases, even when they are all durable goods that don't expire or require restocking, like say a tablet case.
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Re:Uber discovered they’d been defrauded out of 2/3 of their... by disgruntledphd2 on Tuesday January 05, 2021 @09:56AM (#25646138)
Hmmm, that's really weird. It's probably an edge case that would be complicated to change in that case (never underestimate the power of inertia, especially in ML systems).
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Re:Uber discovered they’d been defrauded out of 2/3 of their... by joshspankit on Tuesday January 05, 2021 @10:30AM (#25646510)
I feel like it might be almost trivially solved with a “buyer only needs one [for X months/years?]” property on the items.

It would likely have to be added by a human, but still: there are a relatively small number of items that people only need one of.

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Re:Uber discovered they’d been defrauded out of 2/3 of their... by htrp on Monday January 04, 2021 @12:11PM (#25634366)
ML is pretty shitty at causal inference
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