Stepmania Difficulity Correcter [WIP]

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  • DeadSignal
    FFR Player
    • Jan 2012
    • 136

    #31
    Re: Stepmania Difficulity Correcter [WIP]

    From the looks of it your program is indeed rather neat on its own, the major issue is that it utilizes data that has been generated by an algorithm that makes use of hilariously flawed logic in regards to the situation it is meant to address.

    This implies that the people that will be most open to validating your efforts will, as you have, generally tend to express a certain degree of leniency under the simple pretense that it's better than nothing. Which is perfectly fine and understandable all things considered assuming that's indeed all they want, but only as long as you don't aspire nor attempt to be taken seriously by people that actually do value reasonable results being produced while conforming to a logically-sound margin of error.


    As it currently is, SML's algorithm inflates difficulty by orders of magnitude based on pattern density - thus jumptrills and chordjacks/handjacks tend to be quite prevalent in the highest-rated files difficulty-wise. You may nonetheless believe the results to be relatively reasonable when looking at Nuclear Blast packs due to their comparatively lower differences in pattern density across files, but what happens if you take more content into consideration?

    If you happen to be curious enough, then I would like you to attempt to AA the songs I have listed below in red, or at the very least obtain scores within the same range. Hint: If you are a low to mid D5 player then I guarantee you this won't be happening.

    As you can see, I have paired up files together based on their relative proximity in SML-generated difficulty values, surely this must mean you should be perfectly capable of producing roughly similar scores... right?
    The answer may surprise you.


    Diavolo (Light) 1.0x rate - Yolomania 3 - 10.27
    Jackhammer Madness 1.0x rate - Hard Songs Megapack 1 - 10.25

    HAELEQUIN 1.0x rate - Nuclear Blast 5 - 19.34
    Never Had A Friend Like Me 1.0x rate - midare megapack 3 - 19.43

    Tower Of Saints 1.0x rate - Nuclear Blast 4 - 21.59
    Loli fishing next 20000 leagues (Oni) 1.4x rate - FFR Community Pack 4 (FFRCP4) - 21.42

    Paraclete (Oni) 1.0x rate - Nuclear Blast 5 - 22.71
    Sandstorm 1.0x rate - Hard Songs Megapack 1 - 21.70


    There's most certainly people out there that would be capable of explaining this far better than I have attempted to just now, not to mention that there are countless other factors pertaining to why SML ratings are pure garbage (yes this is merely only ONE facet of it), but I don't think that would be worth the time and effort to elaborate further given what I have already pointed out so far.

    At any rate, my intention with my statements is not to disparage your efforts in their absolute entirety, but rather to elaborate upon where exactly the backlash is coming from, and moreso why it is justified. By taking even a brief moment to put critical thought about what the data you are working with truly amounts to from a logical standpoint, you should be able to realize why the number of people willing to take it seriously isn't anywhere near as high as you had initially hoped it to be.
    Last edited by DeadSignal; 09-12-2016, 02:14 AM.

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    • Dinglesberry
      longing
      • Dec 2007
      • 2679

      #32
      Re: Stepmania Difficulity Correcter [WIP]

      Lol man its so garbage to be honest, it got me motivated to play some disgusting songs though like destroyer of the universe however

      There's this song in nuclear blast with captain Falcon as the stepper logo or w/e that legit destroys me and it gets rated as a 21.

      I dunno man I don't do this for people to get hyped about it, it is what it is, honestly I'd rather have a discussion about it like what's going on above.

      Ill read more later gotta go to class. I'll just say the algorithm isn't the focus unfortunately (I wish I could make my own or open source one, but it's above my level right now :/)

      LOL and YoshL saying he doesn't put me on blast, get outta here bro ahaha
      Last edited by Dinglesberry; 09-12-2016, 08:09 AM.

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      • Leo137
        FFR Player
        • Apr 2012
        • 422

        #33
        Re: Stepmania Difficulity Correcter [WIP]

        That the algoritm sucks or not ain't your problem, is out the focus of your program and honestly you are just doing the best that you can with the availiable resources. Everyone who is critizing the algorithm is derailing massively from the thread topic, so that's sad ;(

        Of what i noticed from the screenshots, it doesn't work quite right for files with multiple difficulties, the only solution that comes to mind is to process the same file for each diff, stripping all of them from the file excepting the current one to process
        My latest works:

        BCMP-ish (6key)

        Solo 137 Pack (6key)

        Jumpstream of Fighters vol.1

        Jumpstream of Fighters vol.2

        6k key discord

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        • Dinglesberry
          longing
          • Dec 2007
          • 2679

          #34
          Re: Stepmania Difficulity Correcter [WIP]

          Either way would be possible, I think I'll end up "stripping" the lower difficulties and then doing the hardest, and realistically adding the easier ones to it unchanged.

          Once I implement an actual file selection menu, could even perhaps have what difficulties you want selectable.

          I don't know if the algorithm scales down to lower difficulties though, so I dunno

          EDIT: ooh I just thought, I should make songs themselves their own object with more data like a key, the File itself, and stuff like # of difficulties, that'd be the easiest way to implement the other stuff I feel...
          Last edited by Dinglesberry; 09-12-2016, 02:40 PM.

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