Is it normal that weird auto-converted maps on the highest difficulty can beat any mania map by a ton?

Songs like:
http://osu.ppy.sh/b/152561?m=3
http://osu.ppy.sh/b/198428?m=3
http://osu.ppy.sh/b/152480?m=3

Everyone can recieve tremendous amounts of PP just by ranking them moderatly with any mod and I bet there are way more.

I forgot to leave feedback:

I think its really unstable right now,because strange/easy converted maps gives you more pp then the mania-diffs
For example the Top Ranks from a friend of mine;His best maps are converted 7k maps he played several months ago with the mod 4k

I suggest the ranking from before(This from for example yesterday ) IF you dont get with Half-time nearly the same amount of pp then without Half-Time.
The only problem I meen was that the amount of pp you may get depends on the accuracy (Excuse me, if this is not true but it makes the apparent)

But I am still confused cause of the laggs D:

SM_Bluefusion wrote:

Is it normal that weird auto-converted maps on the highest difficulty can beat any mania map by a ton?

Songs like:
http://osu.ppy.sh/b/152561?m=3
http://osu.ppy.sh/b/198428?m=3
http://osu.ppy.sh/b/152480?m=3

Everyone can recieve tremendous amounts of PP just by ranking them moderatly with any mod and I bet there are way more.

Agreed. I was wondering how two of those ended up in my BP. Somehow, Extreme Fantasy 4K 99% is worth more than my Imperishable Night A rank too

richardfeder wrote:

Just a quick glance >,<
Clearly there is huge issue about low key amount diff earning a relative high difficulty. One thing I want to point out is that you cannot simply put them all under one single rating system although we have to do that in the future anyway. So now in the early stage of ppv2 I suggest make unique list for every key amount or at least don't put something completely different(for instant 8k and 4k) together. The comparison among different key amount are totally none sense for now.

A couple of opinions:

In difficulty 6, take a look at 7k charts.
Unfinished 7k Hard and Eden HD. Those two clearly don't belong the group of difficulty 6.
Eden HD -> although there is no really outstanding difficult part in this chart, parts contain continuously 1/4 in a relatively high BPM and many 4key-press at the same time make this chart extremely hard compare to other maps in the same level.
Unfinished 7k Hard -> 146BPM with some 1/4 and easy 1/2... seems not harder than other maps in this level. Actually not. Pattern make this chart a little bit hard to read and press for players in that level such as 00:20:065 - and 00:25:099 - , and for those who can not master higher level it is extremely hard to earn FC and high acc(OD8 btw).
So what's important? Sharing a similar average density, songs contain remarkable hard part (like burst or strange pattern) are usually deserved a higher difficulty. Everything unique may makes a chart harder than usual.

Xcrypt wrote:

1. rhythmical planet (collab) overrated, there are some pretty hard parts in there, but also quite a bit easy parts that pump up accuracy so it doesn't deserve to be so highly diff judged.
2. imperishable night 2006 (7k insane) overrated, there are some pretty hard parts in there, but also quite a bit easy parts that pump up accuracy so it doesn't deserve to be so highly diff judged.

I judge underrated/overrated based on how hard it is to get a good score, not on a clear basis.

That is a problem. hard charts with lower average difficulties usually result in good score and OK acc, but actually to master them you need to enter a much higher level in order to manage those extreme hard part. This cause many underrated cases in the list and we need to pay more attention on the maximum difficulty of a chart to judge its rate.
Same thing also happened in 4k. Eg: Wu Xuan Lan 4k Hard and Insane Techniques 4k Hyper


Speed change and large amounts of LNs makes difficulty rise. We're so Happy obviously easier than other two charts due to this reason.
LNs patterns and speed change should also be considered.

Good Job!

I agree with this, that's reasonable opinion.
To combine each key, and then be reflected in overall pp system would make unfair rankings again.
Some people who should be praised truely in low-key mania will lose an opportunity.
Nice thread, Thank you.

Some harsh words, but after I checked the difficulty list, I'm not totally sure about the credibility of the list - It's even misleading in a few cases, especially in the top part, with overrate and underrate which even conflict with experience people stacked in the BMS/O2 community for years.
Some examples include Messier 333 vs Imperishable Night 2006 vs STAR OF AND... , Gigantic O.T.N vs Polygon vs Big Money vs Rhythmical Planet vs Akasha(ignore's ver) and more.
Though osu!mania is osu!mania and it's not necessary that we follow them at all (they have errors too), but they do provide good reference. (Edit: And this is also player feedback because they testplay-ed them for years.)

Since this list is not finalized, I suggest my original point - Let's make the diff calculation FUN and EASY TO USE.

I believe just like what you have done in TP, there are always weighted beatmaps, that most people think that's "overrated" or "underrated".
However, does that mean , when 20 players go here to say that a map is underrated, the map is truly underrated?
In many case, some parameters are just compromise of people who have discussed stuff here. Too many players, whether high ranked or not, are not possible, or don't want to discuss here (You know this is an English-only talk, and I know too many Chinese who can't participate in because they can't write in English well).

So what I suggest is: We should not focus on criticizing that "Oh a map is underrated I lose PP", but respect the fact that some maps are overrated, that they provide important fact that it's the superpower we should decided to promote (e.g. super quick jackhammer, nearly impossible sliders/ SV changes, etc) . To find these "weighted" maps is fun, isn't it? It's a pretty good idea to help with Tom to find that "What superpower has not been picked out"!

When I talked about "easy to use", I'm curious about the speed of the algorithm. Is it quick enough that it uses only a few seconds to calculate 30k maps? (I think dev had give up that once in the past when they want to improve SD)

Edit: some text arrangement.

DT shouldn't count as extra pp if vision mods, HR, or RD don't give extra pp.

The end.

A better play in DT with a slightly lower score is never considered when a slightly higher scored normal play exists since score isn't multiplied when using DT.

So... that is kind of a problem.

Most mania players said in #osumania that DT has bug. So I tried to play a mania map song that I dont have records yet in DT mod.

finished playing DT and I got low score but gained 45 PP. Then I thought I can beat it without DT and Yes I beat it with higher score. Instead of getting higher PP, my PP reduced to 45 returning to my current PP I got before playing the map.

In that case, DT SHOULD not give extra pp, and should be fixed if it's not supposed to.

The issue here is that DT doesn't increase the score multiplier in mania and that the score is capped at 1 million. This means that even if you make a better score pp-wise with DT and do not beat your standard speed highscore, which is worth less pp, nothing will happen.

This gives an "unfair" advantage to those who didn't make a good standard speed score on a map and can play it with DT instead which gives more pp due to the increased difficulty of the map. Indeed, there are players who could make a decent score with the DT mod, but won't get anything out of it even if it is way harder than in normal speed because they already have a good standard score.

I see no way of solving this issue and keeping the score limit at 1 million at the same time unless it is possible to count only the best performance on a song instead of the best score.

Like TP I believe the new PP consider a map DT'd a brand new one, and the extra PP is considered as you playing a new map (with higher difficulty).

However considering current parameter (score) using for PP calculation, I DO think giving DT more PP is not justice to high 300g ratio players...

just like what Fudgyking wrote, it's unfair to these players who struggle to get a higher standard speed score with even 1 less 300, and will eventually hurt the societycommunity by implying of "Playing hard maps, not to play a map accurately".

Fudgyking wrote:

The issue here is that DT doesn't increase the score multiplier in mania and that the score is capped at 1 million. This means that even if you make a better score pp-wise with DT and do not beat your standard speed highscore, which is worth less pp, nothing will happen.

This gives an "unfair" advantage to those who didn't make a good standard speed score on a map and can play it with DT instead which gives more pp due to the increased difficulty of the map. Indeed, there are players who could make a decent score with the DT mod, but won't get anything out of it even if it is way harder than in normal speed because they already have a good standard score.

I see no way of solving this issue and keeping the score limit at 1 million at the same time unless it is possible to count only the best performance on a song instead of the best score.

This guy nailed it.

Sorry for double posting, but I believe 50+ difficulty maps need more feedback.

As soon as I dig into 50+ diff maps (I have testplayed them for 3 hours), I found that it's just chaos. Difficulty numbers goes random, when a few 70s can be nearly the same hard as 60s or even 50s and a few 60s is hard to hell.

I know I'm a note-biased player (I can't play sliders-biased pattern well), so I believe others would have different thoughts. And most feedbacks I have seen is focused on 30 or even lower difficulty maps, maybe we can now check these overjoy maps?

(Though there are not many maps which have 50+ difficulty ranked (actually only 1), maybe we still need to work on this to prepare for these hard maps?)

Also how are calculations working for auto converts now? I have a auto convert in my Best Performances list, but I think I've played better songs.

How about HD/FL ?
Those mods needs considering too to be honest.
Since lots of people (including me) played mania specific maps and yet it just like the same as no mod plays.

@Fafeluke

All vision mods aren't giving any extra pp at the moment. The only mod giving more pp than usual is DT.

Fafeluke wrote:

How about HD/FL ?
Those mods needs considering too to be honest.

On every single map I played with HD I had the same result as nomod; I don't play HD regularly and have not much experience with the mod but it feels like it makes no difference at all difficulty-wise.

Can't speak for FL since I don't play it but I know people who play FL often end up finding it easier than nomod.

Aqo wrote:

Fafeluke wrote:

How about HD/FL ?
Those mods needs considering too to be honest.

On every single map I played with HD I had the same result as nomod; I don't play HD regularly and have not much experience with the mod but it feels like it makes no difference at all difficulty-wise.

Can't speak for FL since I don't play it but I know people who play FL often end up finding it easier than nomod.

This is a great point -- there are probably a number of players who actually use hidden to legitimately reduce the number of objects/notes on screen. Score shouldn't be increased under any hidden circumstance. Fade in produces a similar effect, just the opposite portion of the screen.

However, FL is a different exception -- the amount of space that you have to read guarantees that you will have to lower your scroll speed by a tremendous amount. At this point, you'd likely being reading something incredibly dense or memorizing the chart. Either way, for consistency's sake, it would be a better idea just to leave the multipliers both at 1.00x.

About DT.
I personally have been pro ranking DT in the past, but here's a few reasons why I'm against it now.

As you know, there's the problem that we can't beat nomod scores with DT where the DT scores might have given better pp.
This is because only the highest scores are stored.
Apparently it's also not possible for the algorithm to consider the best DT plays if they are not the highest score, unless some big revamps are done that are probably not going to happen.

The best solution, is to treat DT as an entire different map with a different scoreboard.
An acceptible solution imo, is to consider the best DT plays not only the highest scores.

Both of which are probably not going to happen.

Suboptimal solutions:
- letting people delete their nomod scores so that they can make their highest score a DT play. This is currently not possible server-side.
- a constant score multiplier for DT. The reason this is suboptimal is because complex LN charts will only get a little bit harder, while maps that have already high bpm streams and/or jacks become nearly impossible.
- a non-constant score multiplier could work fine technically I think, but I don't think that's going to happen because of the coding work needed and the aesthetic scoreboard problems.

This is why I suggest unranking DT. I know that it's great for expert players to have a way to get the pp they deserve, but it might be better to wait until harder maps get ranked instead of suboptimal solutions.
Hidden message: rank harder maps.

Xcrypt wrote:

rank harder maps.

^





DT!mania

I would still stick on "no bonus for DT" unless DT version of a map make another scoreboard someday.

Just like what Aqo said,















DT!mania

Why exactly do we discuss DT usage right now? I feel like that is a point being very unimportant right now. What we should concentrate on is why certain converted maps give such an big amount of pp, and why certain mania-maps are considered easy while they are actually hard and vice versa.

The problem with the converted maps such as Extreme Fantasy might be the note density. I agree to an certain extend that yes, the note density on those maps are higher than on other maps, but note density does NOT equal difficulty.

Same thing with some of the mania-maps, especially Wintersun for example, that (in my opinion) should be placed a lot higher than it already is.
There are certain patterns that do not seem hard, but are really hard in reality due to how exactly they are placed. For example http://osu.ppy.sh/b/330588 [Eien] as a Longnote training map, is very, very easy in terms of noteplacement, but this only counts if you are good with Longnotes in the first place.

In my humble opinion, there are two options:

a) Calculate alot of patterns into your algorithm, and i mean -alot- because there are alot.
b) Have a Mania-Difficulty-Rating-Team, as that may an option as long as there arent alot of maps and they could still catch up.

Atleast thats how i see it.

[TaikoTori] wrote:

Why exactly do we discuss DT usage right now? I feel like that is a point being very unimportant right now. What we should concentrate on is why certain converted maps give such an big amount of pp, and why certain mania-maps are considered easy while they are actually hard and vice versa.

The problem with the converted maps such as Extreme Fantasy might be the note density. I agree to an certain extend that yes, the note density on those maps are higher than on other maps, but note density does NOT equal difficulty.

Same thing with some of the mania-maps, especially Wintersun for example, that (in my opinion) should be placed a lot higher than it already is.
There are certain patterns that do not seem hard, but are really hard in reality due to how exactly they are placed. For example http://osu.ppy.sh/b/330588 [Eien] as a Longnote training map, is very, very easy in terms of noteplacement, but this only counts if you are good with Longnotes in the first place.

In my humble opinion, there are two options:

a) Calculate alot of patterns into your algorithm, and i mean -alot- because there are alot.
b) Have a Mania-Difficulty-Rating-Team, as that may an option as long as there arent alot of maps and they could still catch up.

Atleast thats how i see it.

I agree,this is a great idea and a rating team would be really nice IF they dont abuse it for themselfes

And I would make a 3rd option:
You can only get pp for mania-diffs and the converted maps are for fun/the song/or training or something different
Because I think it would be easier with just a few maps that nothing is "overrated" or "underrated".

Xenlon wrote:

I agree,this is a great idea and a rating team would be really nice IF they dont abuse it for themselfes.

I think the community (-> us) would complain about certain ratings from said team if something seems way off.
That also includes the need of fair members of that team that actually listen to the community when arguing.

There won't be any rating team, due to the immense amount of time that'd be required to manage it, sorry. Give the algorithm chances, write which maps you think are rated wrong as some others already did.

I already have ideas on how to circumvent those high-density patterns from being weighted too much.

I think fixing the DT bug will be a good start. DT is giving too much PP without score multiplier.

arcwinolivirus wrote:

I think fixing the DT bug will be a good start. DT is giving too much PP without score multiplier.

It's not a bug. DT is considered as of now, that's intended behaviour. Whether that will change isn't clear yet.

Tom94 wrote:

arcwinolivirus wrote:

I think fixing the DT bug will be a good start. DT is giving too much PP without score multiplier.

It's not a bug. DT is considered as of now, that's intended behaviour. Whether that will change isn't clear yet.

I see.. that conflicts in score system. I wonder what will change. If there's going to be an unranking score feature just to have DT score, that would be a problem in ranking scoreboard of the song (Mostly top 10 will be no mods and DTs are uhh.. ). If DT will be implemented by score multiplier, the whole mania ranking will change because scores are passing through the limit 1M. (meaning re-playing all the songs we just recorded back then and new sets of scoreboards of all songs).

Can someone explain to me how did i improve my acc in 5/6 musics from 97% to 99%, and still my overall acc went from 99.28% to 99.11%?
This has anything to do with this new pp system?

DT shouldn't be counted since we have 1M limit of score, and we can easly get higher score without mods. And other way around if we have high score nomod play (wanted to top 50 for example) we can't beat it with DT and we get less pp than somebody who's doing worse than us with DT but didn't have a score before. And there's no point in going for top 50 anymore, just play with DT and get way more pp, it shouldn't be this way imo

I would like to go back to a point I made a few weeks ago on this thread which was something along the lines of "Double Time sounds bad". At the end of the day Osu! is a game, in fact it's a rhythm game meaning it has a greater than average emphasis on music. One of the many reasons I play Mania is that I value how a game sounds, if a game sounds like **** I will not listen to it,just like I will not listen to DT regardless of how much it increases my rank.


Double Time is not the thing that bugged me the most about this patch though. Some of my "Best Performance" are from 5-6 months ago and I have absolutely no idea why; For a start these are all auto-converts which play absolutely nothing like mania maps do. Secondly I watched a reply of my "Best Performance" and the song was slow, long, boring but I only missed one note, which I can only assume is the reason it's up there. Finally, and the one that confuses me the most, the last time the PP system was broken this song was nowhere to be seen on my "Best Performance" .

I feel like I need to explain the cause of my anger here, because at the minute I just sound like someone who's butthurt at losing PP, which admittedly I am. I have improved on this game most days for the past 6 months to the point where I can score S ranks on a difficulty that I would not have even bothered to attempt and it feels like all that effort has been disregarded to the point where, aside from a few songs, I may as well have quit and played another game because it made absolutely no difference to my performance.

This thread in a nutshell: ppv2 is crap.

DT should not be considered if it should give extra pp or not. It should already not be giving extra pp. The only way it could be remotely considered if it was to give extra pp when you're in the top 8 of a song. The only ones I've seen using DT are the top 10 O!M players, and their non DT scores are a hell of a lot better than there recent DT scores. It would have been best to stick with a broken ppv1 I would say since it didn't give any extra pp to players who used mods (But the star system is broke, which I will talk about in the next paragraph).

And on the topic of Auto Converts; why only count certain auto converts, and deny a team of O!M map judges? The method of suggesting which maps are giving too much pp for their difficulty from other players to you is almost the same as having a map judging team; the only difference is that it's the final opinion of one person instead of multiple people, which is far more accurate than one person or a broken star system.

October Scream wrote:

This thread in a nutshell: ppv2 is crap.

DT should not be considered if it should give extra pp or not. It should already not be giving extra pp. The only way it could be remotely considered if it was to give extra pp when you're in the top 8 of a song. The only ones I've seen using DT are the top 10 O!M players, and their non DT scores are a hell of a lot better than there recent DT scores. It would have been best to stick with a broken ppv1 I would say since it didn't give any extra pp to players who used mods (But the star system is broke, which I will talk about in the next paragraph).

I'm seeing very subjective stuff here. Many people I've talked to speak differently about their DT scores. Don't expect everyone to have the same opinion as you, a ranking system is supposed to please as many as possible.

October Scream wrote:

And on the topic of Auto Converts; why only count certain auto converts, and deny a team of O!M map judges? The method of suggesting which maps are giving too much pp for their difficulty from other players to you is almost the same as having a map judging team; the only difference is that it's the final opinion of one person instead of multiple people, which is far more accurate than one person or a broken star system.

The difference is, that an algorithm decides the difficulty of maps. I'm not sitting here giving maps difficulty values by hand. Everything is done automatically, which ensures, that every map gets the exact same treatment. Having people determine the difficulty would automatically introduce bias. And a huge mess of management effort which isn't needed if an algorithm takes care of it. Not even speaking of the days if not weeks / months it'd take a team to work through every single ranked map and consent on a suitable difficulty.

Tom, looking over the list again, it will be impossible to make an even semi-accurate algorithm with only strain values. Its like judging a sport's team on only their muscle mass... You're gonna have to set up a pattern library and put maps against it for any hope of this being successful.

Also a difficulty rating team won't be hard to run and manage at all. The only thing is it might be slightly challenging to get it started. It'd just be an extra step between bubble and rank, it will more accurate than any algorith, and a number of members will make it not biased. There's also no reason for this to take months haha

Drace wrote:

Tom, looking over the list again, it will be impossible to make an even semi-accurate algorithm with only strain values. Its like judging a sport's team on only their muscle mass...

Not true. Strains are not density. This is not "one" algorithm concept, more like a medium that represents how things get harder with time. It applies to any hard pattern, that if it constantly is of about the same difficulty, then it gets harder the longer it is. That's what strain values capture.

The algorithm has issues identifying which patterns are hard, that's true, and as I said I have several ideas (some from suggestions by Aqo) which will probably improve this.

Drace wrote:

You're gonna have to set up a pattern library and put maps against it for any hope of this being successful.

I'm pretty sure there are some general rules that define which things make patterns hard, or at least approximate that well enough. The trick is to find that those rules.
Of course nothing stops you or anyone from providing a list of easy and hard patterns. That'd help immensely, and originally I had hoped for more of that kind of feedback. ^^'

Drace wrote:

Also a difficulty rating team won't be hard to run and manage at all. The only thing is it might be slightly challenging to get it started.

Nothing stops anyone from getting it going. I for sure am not suitable for that job. I'm a horrible manager and know little about mania. And on top of that I don't have much time at my disposal. What I am good at, or at least think I am, is doing the algorithm stuff.
Do you know how I got in here? By making tp, a working system. If you, or anyone else manages to make a system, that's superior, then I am sure it'll get used.


Keep in mind, that I only have time for osu! as a part-time-job and have to also manage the other gamemodes. On top of that I was mostly busy building the pp infrastructure for this. I've spent maybe 10 hours tweaking this algorithm with barely any community feedback since I didn't have anything public to show. Give it some time and it won't be as bad, I can assure you that. From now on I'll have more time actually tweaking the algorithms.

It still seems like too much of a single-dimension approach in my opinion. There's many instances of maps with insanely lower density, which won't build up the strain values, that are much harder than high density because of how awkward the correlations between the patterns are with each other. In many cases maps show to be more of a confusing layout to play rather than a physical challenge.

I actually believe the physical side to difficulty to be a little less relevant since in most cases when a player reaches the reading skill required to play high speed maps that would require good stamina, he would of also have indirectly trained the physical abilities to do so.

I don't believe it's possible to algorithmically solve for a strain or difficulty value of patterns when even pro players encounter pattern that to their disbelief is much harder than they thought it'd be. Especially when, no offense, yourself and a big chunk and or your help and feedback (including myself) are players not experienced enough to accurately depict the exact dimensions of what makes a map more difficult than others. It also doesn't help that concept itself is a mostly abstract one either.

A good example of this is how the very same map can become much harder or much easier just by switching the lanes around, aka using random. I'm not joking when I say that some instances of random can have ridiculous effects on a song's difficulty. Yet both maps will the same per-lane strains, the same density, the same length and the same speed.

Tom94 wrote:

Of course nothing stops you or anyone from providing a list of easy and hard patterns.

This is like what you said to me about opinions. For some people, they find jackhammers incredibly easy, but stairs hard, vice versa.

Tom94 wrote:

Everything is done automatically, which ensures, that every map gets the exact same treatment.

Weren't we trying to avoid something like that before? Pretty soon, some people will start saying that what you're using is broken as well.

Drace wrote:

Also a difficulty rating team won't be hard to run and manage at all. The only thing is it might be slightly challenging to get it started. It'd just be an extra step between bubble and rank, it will more accurate than any algorith, and a number of members will make it not biased. There's also no reason for this to take months haha

^ Get it started sooner and it will work easily. There should be multiple rules for applying though, like being above rank #200, skill in modding, have made a map, and/or are a BAT member. Even some low rank people could help by testing out easy maps and such. How a process could work is first, the map should be qualified. Once that happens, about 7 users should play each diff (not all having to be the same players each diff) with no mods, a vision mod, or hard rock (No key mods, random, or easy mods), and should get a C or greater. They would use a forum to fill out that would judge by a scale of 1-25 or any other number on things such as patterns, note frequency, chords, freezes, etc. They'd submit their opinion to Tom94 (Since he's running it mostly ATM) and then a simple math equation could be done to find an average of everyone's submitted fourm.

October Scream wrote:

Tom94 wrote:

Everything is done automatically, which ensures, that every map gets the exact same treatment.

Weren't we trying to avoid something like that before? Pretty soon, some people will start saying that what you're using is broken as well.

Do you think an automatic difficulty calculation algorithm is inherently broken? If that is the case, why?

October Scream wrote:

Tom94 wrote:

Of course nothing stops you or anyone from providing a list of easy and hard patterns.

This is like what you said to me about opinions. For some people, they find jackhammers incredibly easy, but stairs hard, vice versa.

October Scream wrote:

^ Get it started sooner and it will work easily. There should be multiple rules for applying though, like being above rank #200, skill in modding, have made a map, and/or are a BAT member. Even some low rank people could help by testing out easy maps and such. How a process could work is first, the map should be qualified. Once that happens, about 7 users should play each diff (not all having to be the same players each diff) with no mods, a vision mod, or hard rock (No key mods, random, or easy mods), and should get a C or greater. They would use a forum to fill out that would judge by a scale of 1-25 or any other number on things such as patterns, note frequency, chords, freezes, etc. They'd submit their opinion to Tom94 (Since he's running it mostly ATM) and then a simple math equation could be done to find an average of everyone's submitted fourm.

I don't think that solution would solve the problem about patterns being subjective, even, it would involve even more subjectivity (not all people would consider a difficulty of "21" the same), and it would add randomness (due to the judges not being always the same people; and even if they were the same people all the time, there is still an element of randomness in their own judgments).

Getting a list of maps with the difficulties determined the way you describe would be useful, though. With those values it would be possible to analyze in more detail how different elements make osu!mania maps difficult so the algorithm can be improved.

The thing about the algorithm path to determine difficulty levels is that it only needs to be done well once to make it work for all maps.

Tom94 wrote:

There won't be any rating team, due to the immense amount of time that'd be required to manage it, sorry. Give the algorithm chances, write which maps you think are rated wrong as some others already did.

I already have ideas on how to circumvent those high-density patterns from being weighted too much.

I believe other people like Drace said what I just want to said below.

I'm not saying the algorithm is "wrong". It's always "correct" and reflect one kind of difficulty - based on a certain norm.
Actually, we everyone have a norm. For example, when I say that

xxbidiao wrote:

Imperishable night 2006 is underrated. Its later half is crazy.

I implied that

xxbidiao's thought wrote:

Imperishable night 2006 is underrated. Its later half is crazy. That's why I can't get good score on this song amongst other song of same "difficulty".

You should get what I mean - It's nonsense at all to the community, because other people may find it easy or even harder - in one word, have different thoughts. And it's all about the norm we set up during our years of rhythm gaming experience.

For instance, I started rhythm gaming on Taiko no Tatsujin and DJMAX / DDR, which is all note-biased. Without good experience on slider-style song, I'm good on IIDX style songs, but poor at O2-style songs.
However, Fate_Yakumo, another player who is of O2Jam expert, find these slider songs easy - He can S a song of O2Jam style that I can't pass. When coming to IIDX songs, instead of one-side winning, we are just at the same level, something 70% vs 30%.
You guess what? I always overrate slider-biased song, and he always overrate note-biased ones.

This example reflect 2 common norm in 7/8K: IIDX norm and O2Jam norm. There are also many more, and every key amount have multiple norms. Sadly they are not enough compact with each other. And whether you admit it or not, you are setting up your own norm.

Just like what you have said,

Tom94 wrote:

I already have ideas on how to circumvent those high-density patterns from being weighted too much

You implied that "I'll degrade these players who is good at high-density pattern playing" (To some extent moving away from IIDX norm to O2Jam norm).

So this is why I keep saying that "This difficulty number does nothing with actual difficulty at all" and "We should try to admit there are weighted songs".
Considering the diversity of mania players, however you modify your algorithm, there are always some people winning, and some people losing.

My suggestion is, however hard it is, and however offence you made, a certain norm should be set up. Whether you choose BMS norm (note biased, density and jackhammers counts ) or O2Jam norm (slider biased, coordination counts) or even DDR norm (hand speed counts) or a mixture of them, Don't hesitate to say that "I mean to hurt you" because what norm you choose you hurt some people who have ability that the norm doesn't emphasize on. What's more, the process of letting players finding their weighted song is fun, isn't it?

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For the DT stuff, I actually have more to say.
Why do people come here to protest about DT score problem?
Actually it's not about scoring at all (People can play DT on the first run).
DT getting higher weight neglects the design of the osu!mania system.

You may have noticed that osu!mania has the most strict judgment with MAX even on OD0 (Actually OD0 and OD10 has no difference on timing of MAX). This is intended because most people agree that osu!mania should be different to other modes by having judgment emphasized, not combo. (o!m once calculate score just like o!standard and current scoring system is later decided.) The philosophy inside is that 1 more MAX is good.

However having DT heavier weighted, though completely reasonable, is going against this. People may achieve a just-so-so S score to win more PP then a SS with 90% MAX ratio. This put osu!mania far away from it's emphasize on judgment, to the extent that people just DTing every song regardless of judgment, and people no longer care about MAX ratio. This is surely what people don't want to see. (Feature requests on DT bonus score has been rejected multiple times both by faculty and players)

So unless ppy somewhat change the mechanism to make DT version of the beatmap a whole new one and have its separate scoreboard, I suggest no bonus for DT for now.

The algorithm is still unrefined and not final, give it some time. Being butthurt about it is not helping anyone. The guy who is doing effort trying to make your ranking system better for once is getting flamed around every corner, do you think that will be a positive influence for him? What we need is actual feedback.

I am slowly progressing on some small list of the maps I personally play of what is under/over rated myself and what patterns might be causing this, but I will need some more time before I can make conclusions. I suggest you could do this yourself with the maps you play too, because for example I can only judge intermediate maps: I have no understanding of beginner or ET maps. Even if you don't feel like you are really understanding what patterns are causing it to be harder/easier, just having a list will already be helpful. If you are considerably better at LN than chords, or vice versa, that might be worth noting aswell.