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My previous/alt account is yetAnotherUser@feddit.de which will be abandoned soon.

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Cake day: June 1st, 2024

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  • The idea of anomaly detection is to project some input onto a (high dimensional), numeric output. From the training data alone, you can then see where the projections are clustered and develop a high dimensional “boundary” where everything within is known and good and everything outside is unknown and possibly bad. Since orders come in relatively slow, a human would be able to check for false positives and overwrite the computer decision.

    By the way, an ideal training set is preprocessed and has duplicates removed and new orders added by recombining parts of individual orders.

    For example, if we have 3 orders:

    • (Hamburger, Fries)
    • (Hamburger, Fries)
    • (Cheeseburger, Sandwich)

    We could then create the following set:

    • (Hamburger)
    • (Cheeseburger)
    • (Fries)
    • (Sandwich)
    • (Hamburger, Fries)
    • (Hamburger, Cheeseburger)
    • (Hamburger, Sandwich)

    And so on, and so forth. A naive variant is just taking the power set of all valid orders.


  • There are machine learning algorithms for anomaly detection though. They actually work decently well because exploits like this do in fact differ significantly from regular orders. Because they assume all anomalies are attempted exploits, their false negative rate is rather low while their false positive rate can be a bit higher.

    Taco Bell has the capability to create a decently large training set from all recorded orders (which must all be valid and non-malicious) so they shouldn’t have too many issues developing this model.

    If an anomaly is detected, make a human verify it is indeed an irregular order.



  • Gobrick’s and Cobi’s pieces literally match LEGO’s durability and consistency and surpass it in terms of color consistency and prints by a long shot.

    Xingbao was worse in the past and nowadays seems to be approaching LEGO durability but has surpassed it in terms of color consistency and prints as well.

    There are a ton of other manufacturers but I don’t know enough about them. Still, they have all massively invested into plastic molding machines in recent years due to their customer base skyrocketing.

    Meanwhile, LEGO produces ever worse sets at ever worse prices. 10 ct/piece are the norm even for unlicensed sets while other brands’ - like Bluebrixx - licensed sets are usually around 5 ct/piece btw.

    I have completely given up on LEGO. On occasion they produce something that’s worth it at 40% off but that’s sadly the exception.


  • Their manufacturing tolerances are unmatched

    Source? Seriously, LEGO’s quality has significantly declined over the past few years. Sets are more expensive, less detailed, with stickers instead of prints and with far worse color consistency than other brands.

    I’m just saying, this is what other brands manage to sell:

    That’s Bluebrixx’s Castle Blaustein with ~25,000 pieces via 1 base set and 10 optional extension sets for ~1,200€ in total. The base set alone weighs 4 kg with “only” 5000 pieces and 200€ by the way - so unlike LEGO, half the pieces aren’t 1x1s. The final castle alone (ignoring the front court) measures 70 cm in every direction. That’s 0.35 m³ or 350 liters of bricks.

    And that’s just one set (albeit with extensions). LEGO would never, ever produce anything like this with this level of detail and (comparatively) low price. Other brands, like Lumibricks, sell sets like this:

    This isn’t edited btw. The set looks like this in the dark, check out some videos about it.

    Don’t use Megablocks. Check out some of the actual alternatives to LEGO, such as Bluebrixx, Cada, Cobi, Lumibricks, MouldKing or Xingbao. Always check out reviews though, some of their sets are just LEGO-quality (derogatory).