作者prince (支那是貶義詞?)
看板ABC
標題IMP to VP scale changed (VP 換算表修訂)
時間Tue Jan 1 23:59:49 2013
有在注意臺大盃賽訊的人應該知道 WBF 的 VP 換算表改了。
我在 WBF 網站找不到相關訊息，但有在網路上找到底下這篇:
http://www.bridgebase.com/forums/topic/55389-wbf-vp-scale-changes/
引述其中 HenryB (他是 WBF 計分委員會的成員 Henry Bethe (USA)) 所說的公式:
HenryB
Group:Members
Posts:2
Joined:2012-September-17
Posted 2012-September-17, 12:23
The function is
VP(Winner) = 10+10*((1-Tau^(3M/B))/(1-Tau^3)) with a maximum of 20
VP(loser) = 20 - VP(winner)
where
Tau = (5^.5 - 1)/2 which is the "golden mean" and approximately 0.618...
M is the margin
B = 15*(number of boards^.5)
Both values are rounded to 2 decimals and truncated
Occasionally because of the rounding
the rule V(i+1) - V(i) <= V(i) - V(i-1) will be violated.
In that case the value of V(i) is increased by .01.
Usually this will eliminate all violations;
sometimes it takes as many as four iterations of this procedure
to eliminate all of them.
A VP score of 15-5 will be achieved when M = B/3
(five times the square root of the number of boards)
A margin of 2B/3 will get a VP score of 18.09
A margin of B or greater will get a VP score of 20
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◆ From: 140.112.67.16
1F：→ tnf:我看不懂耶~如有計分，我應該是富好多好多吧...orz 01/02 12:09
2F：→ tnf: 負 01/02 12:09
3F：→ prince:不要在這種文章底下推這種耍憨推文好嗎? 01/02 12:17
4F：→ prince:何況，最差就是鴨蛋，你要怎麼負好多好多? 01/02 12:18
5F：推 s93015a:嘖嘖，今年無法打 01/02 12:58
6F：→ tnf:樓上~我們可以一起握握手了~(握) 01/02 23:46
7F：→ prince:他是時間無法配合，你是資格根本不符，到底是在握啥手? 01/03 00:16
8F：→ prince:說你是女版陳建州果然沒錯 -_- 01/03 00:17
9F：→ tnf:阿都是不參加，為什麼不能握一下...你很奇怪耶... 01/03 00:19
10F：→ tnf:都是你~害我level 3 打倒了...(自己打倒硬要牽拖一下XDD) 01/03 00:20