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September 9th, 2003, 09:35 PM
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Re: SE4 Rating System
Why not do it the easy way. Do as originaly planned, but add a "reduction-factor" to lessen the effect of the many win/losses.
With 40 % reduction for a 4 man game (and all keeping their 1000 points throughout the game):
A = +29 points
B = +10 points
C = -10 points
D = -29 points

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September 9th, 2003, 10:03 PM
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Re: SE4 Rating System
Quote:
Originally posted by primitive:
Why not do it the easy way. Do as originaly planned, but add a "reduction-factor" to lessen the effect of the many win/losses.
With 40 % reduction for a 4 man game (and all keeping their 1000 points throughout the game):
A = +29 points
B = +10 points
C = -10 points
D = -29 points
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And a 5-person game @ a reduction factor of 50% (5 x 10%) would result in:
A = +32
B = +16
C = 0
D = -16
E = -32
Right? (if I understand you).
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September 9th, 2003, 10:38 PM
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Re: SE4 Rating System
That was the idea (if using 40 and 50 % as factors). But in hindsight, I don't think I like it very much
Coming Last or second to Last shouldn't really be much different scorewise, so your formula is better there. There should however always be a positive score for coming 2nd, so a little tweak may be in order.
The "perfect" formula for a 4 player game should give something like:
A = +30 points
B = + 5 points
C = -15 points
D = -20 points
And for 5 players:
A = +35 points
B = +15 points
C = - 5 points
D = -20 points
E = -25 points
Now thats a challenge for the math geniuses 
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September 9th, 2003, 10:53 PM
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National Security Advisor
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Re: SE4 Rating System
Slynky your idea is very similer to what I suggested Last week, so of course I kind of like it.  However, you fell into the same trap that I did when calculating the outcome. Your results are only correct if all four players have the same score going into the game. When I started running some numbers using different Ratings going in I got quite different results. I believe it's even possible, given the proper distribution, for the second place player to collect more points then teh first place player. At least I think I had one that came out like that. I may have messed up though. You formula is kind of complicated.  I'll try to run that again tonight.
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September 9th, 2003, 11:22 PM
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Re: SE4 Rating System
Well, Geo, your suggestion had some merit. I'm rushing this off before I leave work, so bear with me.
If I remember (which might not be the case), you didn't average (I'll check later). Averaging MAY smooth things out a bit in the second place gaining the most points. On the other hand, IF second place has such a low score and the others are high scores, finishing 2nd SHOULD garner that person more points. Just as in a tourney when someone has several great games and does much better than expected...beating higher-ranked players.
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September 10th, 2003, 12:07 AM
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Re: SE4 Rating System
I believe I did average them.
I agree with your Last post. My comment about the second place player getting more points wasn't a criticism. I was just pointing out that what you saw as a flaw in the system, ie the 2nd place player not getting enough points, might nto be a flaw at all since so much of it is dependant on the player Ratings going in to the game..
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September 10th, 2003, 12:56 AM
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Re: SE4 Rating System
Quote:
Originally posted by geoschmo:
I believe I did average them.
I agree with your Last post. My comment about the second place player getting more points wasn't a criticism. I was just pointing out that what you saw as a flaw in the system, ie the 2nd place player not getting enough points, might nto be a flaw at all since so much of it is dependant on the player Ratings going in to the game..
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If you say your suggestion called for averaging, I won't bother going to look .
In the example I used, everyone was @ 1,000 points. I used it as a "flat line" example. Yes, at different Ratings, point gain and loss would differ but would be hard to get an idea of how well the adjustment to the formula was working...so I used 1,000's. And with 4 rated players at the same score, to have come in second should have yielded something, IMO. Looking at the other side of the coin, 2nd place DID lose. But coming in second in 4 people isn't bad.
I'm not too worried about an adjustment to a multiplayer rating game "disturbing" the formula too much, after all, in a multiplayer game, the number of events (and players) affecting the outcome are more than what is found in a one-on-one game. So, the multiplayer game results already will be skewed a bit due to those circumstances.
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ALLIANCE, n. In international politics, the union of two thieves who have their hands so deeply inserted in each other's pocket that they cannot separately plunder a third. (Ambrose Bierce)
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