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

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Joined 1 year ago
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Cake day: June 1st, 2024

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  • I almost certainly don’t have ADHD but occasionally do the center one (unintentionally, due to procrastination). But I’m pretty sure that everyone who does that does not get 40 hours of equivalent “quality” work done, more like 40 hours of somewhat careless work that is acceptable at best.

    I know this because I have just spent 10 days preparing for an exam for a university lecture I have visited twice in this semester before ignoring it completely.







  • 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.