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Businesses AI

Walmart Employees Complain Its Anti-Shoplifting AI Is Buggy, Inaccurate, and Dangerous (arstechnica.com) 116

Walmart uses "Everseen" AI technology in thousands of its stores "to prevent shoplifting at registers and self-checkout kiosks," reports Wired.

But some Walmart workers claim that instead it's often failed to stop actual instances of stealing, misidentified innocuous behavior as theft -- and made it harder for them to social distance: The workers said they had been upset about Walmart's use of Everseen for years and claimed colleagues had raised concerns about the technology to managers but were rebuked. They decided to speak to the press, they said, after a June 2019 Business Insider article reported Walmart's partnership with Everseen publicly for the first time. The story described how Everseen uses AI to analyze footage from surveillance cameras installed in the ceiling and can detect issues in real time, such as when a customer places an item in their bag without scanning it. When the system spots something, it automatically alerts store associates...

In interviews, the workers, whose jobs include knowledge of Walmart's loss-prevention programs, said their top concern with Everseen was false positives at self-checkout. The employees believe that the tech frequently misinterprets innocent behavior as potential shoplifting, which frustrates customers and store associates, and leads to longer lines. "It's like a noisy tech, a fake AI that just pretends to safeguard," said one worker.

The coronavirus pandemic has given their concerns more urgency. One Concerned Home Office Associate said they worry false positives could be causing Walmart workers to break social-distancing guidelines unnecessarily. When Everseen flags an issue, a store associate needs to intervene and determine whether shoplifting or another problem is taking place. In an internal communication from April obtained by WIRED, a corporate Walmart manager expressed strong concern that workers were being put at risk by the additional contact necessitated by false positives and asked whether the Everseen system should be turned off to protect customers and workers.

Before COVID-19, "it wasn't ideal, it was a poor customer experience," the worker said. "AI is now creating a public health risk."

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Walmart Employees Complain Its Anti-Shoplifting AI Is Buggy, Inaccurate, and Dangerous

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  • Sounds like nobody's problem but Walmart's why is anything that impacts their efficiency considered a bad thing?? Another non-news day at Ars.
    • Missing semi-colon notwithstanding.
      • If you scan an item and it fails to acquire a code you then rescan it. If you move too fast it gets confused or maybe its the reverse motion, it happens to me often. AI or its ilk are not ready for daily use, the employees have a valid complaint and managment is indifferent (not a metric they get scored on).
        • LOL!

          I agree with the AI, if you're dumb enough to shop at Wally World, you're probably trying to steal something. Maybe you didn't notice yourself doing it?

          • If the object I need is available at Walmart for a good price and nearby why would I go elsewhere?

            If the same object is higher price at a corporation you like more does that make it better?
            • by rtb61 ( 674572 )

              Better more reliable service, they do not sell the crap object wallmart sell, they sell a better object, after sales service and support, you hate wallmart and have no desire to feed their greed and make them even worse. See a whole bunch of reasons, not one of which is your greed.

              • It's an object. It comes in a box from a manufacturer. It has a standard warranty and return policy. The Walmart object is the same as the higher priced and magically better but the same in the same box from the same manufacturer object.

                I'll buy the cheaper one from Walmart. No reason not to unless you just hate Walmart. Which is fine. But that's not an economic or quality based decision.
                • Re: Pfft. (Score:4, Insightful)

                  by Paul Carver ( 4555 ) on Monday June 01, 2020 @09:31AM (#60130800)

                  The Walmart object is the same as the higher priced and magically better but the same in the same box from the same manufacturer object.

                  That may be true in some cases but not all. I don't have much interest in Walmart one way or the other, but have read articles over the years about manufacturers who made "Walmart special" products in order to meet the Walmart's demands on pricing. I believe Snapper was one company covered in such an article. Basically the way it works is Walmart offers to buy a bazillion of a specific product for less that the cost to manufacture it or none at any higher price. The manufacture looks at their costs and figures out how to make a similar product by cutting corners and sells it to Walmart but continues selling the original product to other retailers without cutting corners.

                  This can work if enough people avoid Walmart and continue to buy the original product elsewhere. In that case it's just market segmentation, selling a lower quality product to the people who wouldn't have bought the higher quality product. But it can backfire if the sales at Walmart cannibalize the sales of the better quality product elsewhere to the point that the manufacturer no longer sells enough quantity of the better quality version to cover their fixed costs of making multiple versions.

        • Often when I use the self check out, some thing goes afoul with the process, and everything grinds to a halt. I have to stay there and wait for an employee for assistance. It might be something as simple as the scale not registering what was placed in the bag, but I end up having to wait for the cashier to 'unlock' the machine. I got to the point where I said "screw it", and went back to waiting in line.

          I hope by now they managed to make the machines much less flaky.

          • by Bert64 ( 520050 )

            The machines themselves are very reliable as they are pretty much the same technology that cashiers have been using for years, what's buggy is the mechanisms which assume every customer is a criminal.

            I had a friend who used to work as a cashier, whenever he used the self scan machines he was too fast for them and triggered these mechanisms.
            If you have too many items that they don't all fit on the scales, you trigger the mechanisms. You end up with precarious balancing.
            If you bring your own bags they add ext

            • The local Home Depot just posts a friendly cashier monitor at the end of the self-checkout lanes and turns off all of the theft-misdetection mechanisms. Works great. The local Target (assuming it is still open) requires one-by-one scanning of items and sequentially depositing them into the baggage area for weight. It fails all the time and works very poorly.
            • There are some items that are so small and light that the scale simply does not register them. I know these scales are not high precision instruments (and likely not well maintained) and stuff being shifted around in the bag as you put your items in can cause all kinds of false readings which triggers the lock up.

              I recently went to a pharmacy which only had the self check outs and IIRC, they did not have the scale. I was able to scan, bag, and pay with no problem.

        • What they need is some AI to allow scanning at full speed for people who know what they're doing. After scanning an item, there's a stupidly long delay before the laser will register another bar code to prevent duplicate scans. It wouldn't take a lot of intelligence to have that enforced softly with some pattern recognition instead of by a hard timer. If you're already pointing a camera at the station, you can tell if it's a duplicate scan or a legitimate item.

          Wal-Mart is the only store where I hate inte

          • by imidan ( 559239 )
            I've never worked as a checker, and I rarely use the self-checkout. But I find that the trouble I usually run into with it is that I'm trying to go much faster than the machine is set to handle. I scan an item, I put it in the bag. But the machine hadn't yet *told* me to put the item in the bag, so now there's an "unexpected item in the bagging area." And then wait for an actual checker to come over and fix it. Ugh.
          • Reminded of container deposit machines that often aren't ready to take the next one as fast as I can get it out.
            The stores where they're counted by hand are so much quicker

  • by bobstreo ( 1320787 ) on Sunday May 31, 2020 @08:35PM (#60129536)

    Unless I only have a couple items.

    Most cashiers at any store can scan and bag your items at about a 1000% faster rate than you can at the self checkout.

    • Why do I want some nosy cashier pawing over my stuff?

      "I need a price check on extra-small condoms, register five."

      • The store I shop at doesn't have either.

        I fill my cart, I scan my items, I leave, no problem.

        When the security scanner beeps because I didn't touch the right part of the item to the NFID-clearing-pad, I try to show somebody my receipt but they just wave me through; because they were already keeping an eye on things, they made sure I scanned the big stuff. They obviously have people in the back watching cameras because you hear, "Security Check to Section C, Security Check to Section C." But no hassle, and n

        • You do know that "Security Check to Section C" means nothing, right? Its something that the customer service section is told to say every 15 to 30 minutes to discourage shoplifters. There isn't a "Section C", it's a made up section at that moment to make people think there might be someone watching, when in truth, no one is watching.
          • Section C in this store is the fitting rooms in the clothing area. Unsurprisingly.

            • ahhhhhh.... ok. When I was a teen, I worked at one of these style stores (Kmart?) And I was told to say that exact line with it changing between different sections (A thru D). Was just to discourage shoplifters, but not as a reaction to any real issues.
              • by PCM2 ( 4486 )

                A friend worked at a Disney Store. Over there, when the loudspeaker said "a customer" needed help on aisle such-and-such, that meant some employee thought somebody might be stealing. People whom they thought actually needed help were always called "guests" -- never customers. Customers meant thieves.

        • Comment removed based on user account deletion
        • But . . . did you go the Right Direction going down the aisles ?
          • We don't have that.

            Everybody wears a mask, and we peak around intersections and wait.

            We don't have to be told to social distance. Everybody is doing it.

            Most of them are Democrats.

            • by Bengie ( 1121981 )
              Luck you. I see a family of 7 hanging around, blocking the aisle, touching everything, and people continue to pack into the aisle and attempt to push past the mouth breathers. When it comes to epidemics, you're only as strong as your weakest link. It's like of like spam. We get spam because 0.000000001% of the time it works, which is enough time for someone to make enough profit to make it worth their while.

              Short of pruning the tree, that's where we're at until we get more robotics. I can't wait for the
    • Most cashiers at any store can scan and bag your items at about a 1000% faster rate than you can at the self checkout.

      Self-checkout has been around for so long that by now I have more experience checking out my own things than some of the cashiers. But the real time savings is standing in line, the line for self-checkout is a lot faster.

      • by Bert64 ( 520050 )

        It's faster so long as the self scan machines are not being jammed up by people who have no idea how to use them...
        It's almost as bad as the cashiers who waste time making idle chatter with customers while a long queue is forming. If you wanna chat, wait until a quiet period when you're not delaying other peoples days.

    • Dunno where you're shopping but self check is a fucking blessing for me. I'm out faster with less bullshit than regular lines,

      I've watched my place at self check out vs. a few randoms in regular lines. They are usually still waiting to put their crap on the check out counter when I'm at the exit with all my stuff.
    • Most cashiers at any store can scan and bag your items at about a 1000% faster rate than you can at the self checkout.

      I can easily scan and bag as fast as most any cashier (assuming they don't have a dedicated bagger helping them). The main trick is to remember that most scan codes can be picked up by holding the item upright and giving a little twist like the cashiers do; you usually don't have to look for the scan code yourself.

      The problem with self checkouts in my experience is that about 2% to 5% of the items fail to weigh properly on the verification scale, which shuts down the whole process until you get the attentio

    • In my experience I can scan and bag faster than 90% of checkers. The only time I am slower is when I'm entering produce codes. If I have much produce without bar codes I don't check myself out. But the only food I buy at Walmart is peanut butter, as they have my favorite brand much cheaper than almost anywhere else (and at least slightly cheaper than anyone else.)

      I'm also much better at bagging in general, I use less bags and my food doesn't get squashed, and all my fridge and freezer stuff is bagged togeth

    • You can also plug the line with your cart, so the person behind you can't easily breathe down your neck (obnoxious in any era; position the cart so they can load stuff behind you on the conveyor, optionally). Biggest single deficit of self checkout is inability to enter quantities of normal items; nothing like manually scanning 40 items with wrinkly packaging that you have to fiddle with to get the UPC flat enough to read.
    • by AmiMoJo ( 196126 )

      The best option is "scan as you shop". They all have different names for it. Basically they give you a hand held scanner and you zap barcodes as you go around the shop, putting the items directly into your bags. No separate scanning and packing stages. All you have to do at the checkout is pay.

    • The self-checkout never goes off-shift, forcing you to move to another line. I had that happen to me twice on the same trip to a store.

    • Unless I only have a couple items.

      Most cashiers at any store can scan and bag your items at about a 1000% faster rate than you can at the self checkout.

      True but at least in self checkout you don't have to worry about can goods being tossed on top of bread.

  • When I go to Walmart (which I do only in emergency, it accounts for less than 1% of my annual brick and mortar shopping), I get spooky feeling that I can get into trouble for an innocuous mistake. I am very forgetful and have done things like going out of store without paying and then reentering and apologizing and paying. Have done this at restaurants too. In all cases, I have been treated well by retailers, 100% of the time. Though, no security has ever approached me, I just get the feeling that I may not

  • and now it will go into riot mode the system may auto flag blacks and that is bad.

  • It is! (Score:5, Informative)

    by aaarrrgggh ( 9205 ) on Sunday May 31, 2020 @09:57PM (#60129688)

    Actually went to a WalMart today. Apparently I stole something; scanned first item, no problem, wife scanned another and it was flagged. Clerk came over, reviewed the video, re-scanned the second item, I scanned the third thing. Wife was checking the receipt and the first thing never scanned through.

    Sorry, Walmart...

    • So you didn't scan the first item then. Problem! The system was working, and you still defeated it :)
  • "I know what's best Dave. I am never wrong Dave. I'm sorry Dave, but I'm afraid *you* can't do that......"

    I have lost track of the number of times I could not get a simple issue resolved, one that under normal circumstances would take a clerk 2 seconds to fix because "the computer won't let me".

    Clerks broken into submission almost to the point where they have to ask permission to use the bathroom, and fluky AI is a VERY bad combination.

    • Just a reminder that the problem begins with humans. Even if everything goes full on Skynet, it was HUMANS and their bad decision making that caused it.

  • They nabbed me (Score:5, Interesting)

    by No Longer an AC ( 4611353 ) on Monday June 01, 2020 @12:06AM (#60129886) Journal

    I entered through the garden section, got a cart and put a big sword fern in it. Then I wandered through the toy section and then I actually paid for something in electronics that I had to get an associate to unlock for me. (I don't even remember what, but it was only about $20 or so). Then I meandered around some more and picked up some groceries.

    After going through the self-checkout, they were waiting for me. They seemed pretty sure I had hidden something underneath that plant I guess. I didn't raise a fuss, but it wasn't a good customer experience. Maybe they'll implement facial recognition so they'll know I shop there all the time and maybe they could even put me of a "safe" list.

    And I do mean they were waiting for me. Apparently I look scary enough that it took more than one person to ask if they could see my receipt. That's the only time that ever happened. It just seemed weird and absurd to me.

    • by AmiMoJo ( 196126 )

      I walked out of TK Maxx (clothing shop) once and the alarms went off. Guy came rushing over, asked to see receipt and bags. I declined, I hand't stolen anything and didn't feel a search of my property by this minimum wage rando was justified.

      He was not very amused and threatened to call the police, which I suggested he do. Manager came out, PCSOs (fake cops) wondered over. After a while I noticed that one garment I bought still had the tag on it. Fortunately I carry a very strong magnet with me which remove

      • Re:They nabbed me (Score:4, Informative)

        by jabuzz ( 182671 ) on Monday June 01, 2020 @07:01AM (#60130516) Homepage

        Right, and I would just ring up my credit card company and dispute the transaction. They would get nowhere with that tactic in the UK.

        • by AmiMoJo ( 196126 )

          No I don't mean they charge your card, they can't without you present anyway in the UK. I mean they send you a bill and when you don't pay they take you to court.

          Happened to a friend of mine. Her toddler grabbed something and put it in her bag without her noticing. Ended up costing her about 60 quid.

          Might have been her store card rather than credit card.

    • by Ogive17 ( 691899 )
      You could have refused to let them see your receipt. They have no authority to detain you, which is basically what that is.

      Unbeknownst to me, for years my winter jacket had a security tag still sewn inside.. so I'd set off the door alarms going into and out of walmart. I did not frequent walmart enough to figure it out immediately.

      Of course entering the store, they'd give me a weird look when the alarm went off. Leaving, though.. "Sir, an I please see your receipt". My response "No thank you" and I
      • You could have refused to let them see your receipt. They have no authority to detain you, which is basically what that is.

        While very true, there is one important caveat: if you shop at a member's only club, such as Costco, Sam's Club, or the like, a typical condition of your membership is that you do give them the authority to check your receipt before you leave. In fact, a family member of mine was talking with someone at a Sam's a few weeks ago after they had some technical difficulties with the Sam's app, and they found out from the employee that Sam's doesn't actually charge your card until they scan your receipt at the do

      • by ebvwfbw ( 864834 )

        LOL, Sounds like a good practical joke.
        OK, It's funny to us.

  • by sgunhouse ( 1050564 ) on Monday June 01, 2020 @03:42AM (#60130260)
    As a Wal-mart employee who therefore shops at Wal-mart multiple times a week, I can point out one big false positive that has occurred to me more than once. If you are going through the self-checkout and have an item where the barcode doesn't scan correctly (say, your bag of chips is crinkled, or maybe you accidentally had your finger over the barcode) it'll always flag you. When you go to re-scan the item it'll say "Approval needed" (as if it were some age-restricted item) then show the attendant still images of what you did.

    As I'm not a cashier, I have no idea how common unreadable barcodes are in absolute terms - but I'm sure having the register call you over for such false alarms gets discouraging.
  • by LordWabbit2 ( 2440804 ) on Monday June 01, 2020 @11:08AM (#60131044)
    GASP! AI that ain't really AI and that doesn't work! Who would have thunk.
  • AI is now creating a public health risk

    No. Walmart is creating a public health risk, by relying on a known-to-be-defective technology and forcing its employees to act on the often-false information it provides. Whether AI is reliable, or even actually exists, is not central to this discussion. We mustn't blame technology for the moral failings of corporations. We need to remain clear and explicit regarding the fact that the blame belongs to a 'who', not a 'what', and in this case the 'who' is the corporate person known as Walmart.

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