Ballistic Pro Ladder

[iZumo]

I haven't finished the patch, but old data will gradually decay, based on new data (not time). There will also be fully recoverable inactivity decay to purge inactive players. It will be the final patch to the skill system.

[iRobot]

One patch only?

That's worse support than EA

FML

[iZumo]

Why lie? There was also EFR patch, thawing patch ...

[iRobot]

Those were almost basically day one DLC that should have been in there originally

[iZumo]

Yes, there is day one DLC in there. My abuse tools

[Butcher]

I made it on Matlab code to test it fast, but if you want I can write it in .uc code too.
The skill is calculated from the end of the match Kills+Thaw:Deaths ratio -> gives you a "new score" after every match.
You accumulate them for an amount of times:

Code: Select all

function [ New_Skill_Vect ] = Insert_New_score( New_score,Skill_Vect )
%First in Last Out function 
if New_score>0 % for not adding when you just entered to a match
    New_Skill_Vect=Skill_Vect*0;
    for iii=2:length(Skill_Vect)
        New_Skill_Vect(iii)=Skill_Vect(iii-1);
    end
    New_Skill_Vect(1)=New_score;
else
    New_Skill_Vect=Skill_Vect;
end
end

Then you average the vector over the length of it (30 matches for example)
Ladder Skill caculation:

Code: Select all

function [ New_skill ] = Calc_vect_Skill( Skill_vect )
% Calculates average in the vector
New_skill=sum(Skill_vect)/length(Skill_vect);
end

and you have something like this (10 sample test)

Code: Select all

Player_Skill_Vect =
    5.1000         0         0         0         0         0         0         0         0         0
New_skill =
    0.5100
Player_Skill_Vect =
    4.5000    5.1000         0         0         0         0         0         0         0         0
New_skill =
    0.9600
Player_Skill_Vect =
    8.3000    4.5000    5.1000         0         0         0         0         0         0         0
New_skill =
    1.7900
Player_Skill_Vect =
    8.7000    8.3000    4.5000    5.1000         0         0         0         0         0         0
New_skill =
    2.6600
Player_Skill_Vect =
   12.1000    8.7000    8.3000    4.5000    5.1000         0         0         0         0         0
New_skill =
    3.8700
Player_Skill_Vect =
    3.1000   12.1000    8.7000    8.3000    4.5000    5.1000         0         0         0         0
New_skill =
    4.1800
Player_Skill_Vect =
    8.1000    3.1000   12.1000    8.7000    8.3000    4.5000    5.1000         0         0         0
New_skill =
    4.9900
Player_Skill_Vect =
   12.5000    8.1000    3.1000   12.1000    8.7000    8.3000    4.5000    5.1000         0         0
New_skill =
    6.2400
Player_Skill_Vect =
    5.7000   12.5000    8.1000    3.1000   12.1000    8.7000    8.3000    4.5000    5.1000         0
New_skill =
    6.8100
Player_Skill_Vect =
    4.0000    5.7000   12.5000    8.1000    3.1000   12.1000    8.7000    8.3000    4.5000    5.1000
New_skill =
    7.2100
Player_Skill_Vect =
   18.3000    4.0000    5.7000   12.5000    8.1000    3.1000   12.1000    8.7000    8.3000    4.5000
New_skill =
    8.5300
Player_Skill_Vect =
    8.7000   18.3000    4.0000    5.7000   12.5000    8.1000    3.1000   12.1000    8.7000    8.3000
New_skill =
    8.9500
Player_Skill_Vect =
   13.1000    8.7000   18.3000    4.0000    5.7000   12.5000    8.1000    3.1000   12.1000    8.7000
New_skill =
    9.4300
Player_Skill_Vect =
    8.1000   13.1000    8.7000   18.3000    4.0000    5.7000   12.5000    8.1000    3.1000   12.1000
New_skill =
    9.3700
Player_Skill_Vect =
    8.5000    8.1000   13.1000    8.7000   18.3000    4.0000    5.7000   12.5000    8.1000    3.1000
New_skill =
    9.0100
Player_Skill_Vect =
   13.5000    8.5000    8.1000   13.1000    8.7000   18.3000    4.0000    5.7000   12.5000    8.1000
New_skill =
   10.0500

[iRobot]

The skill is calculated from the end of the match Kills+Thaw:Deaths ratio -> gives you a "new score" after every match.

from the end of the match Kills+Thaw:Deaths ratio -> gives you a "new score"

end of the match Kills+Thaw:Deaths ratio

Kills+Thaweaths

[iZumo]

There is a bit more complex math behind it. It's a Bayesian estimate over the collected data to weight the amount and we're indeed using efficiency which is: ( kills + (thaws / thaws_to_kill_ratio) ) / deaths. Furthermore, I'm about to make a decay system to cover player inactivity and decay old data (too little time now).

[Butcher]

I see I got your attention...

There is a bit more complex math behind it. It's a Bayesian estimate over the collected data to weight the amount and we're indeed using efficiency which is: ( kills + (thaws / thaws_to_kill_ratio) ) / deaths. Furthermore, I'm about to make a decay system to cover player inactivity and decay old data (too little time now).

Make it simple or complex, but implement please !!

[Butcher]

There is a bit more complex math behind it. It's a Bayesian estimate over the collected data to weight the amount and we're indeed using efficiency which is: ( kills + (thaws / thaws_to_kill_ratio) ) / deaths. Furthermore, I'm about to make a decay system to cover player inactivity and decay old data (too little time now).

The "inactive delay" starts to kick after 14 days of inactivity with expected play time 30 min / day and makes your skill equal to the average skill after 28 days of pure inactivity, but it's fully recoverable if you start playing again. Old IDs will now be merged with much greater ease.

Could you tell us how the skill is exactly calculated now?

Skill=f(Thaws,kills,Deaths,time) where f=????