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[体育菠菜心得方法] 凯利指数的计算及在足彩中的运用
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本帖最后由 凯利之王 于 2009-7-13 09:48 编辑/ f, O2 I- ~9 w3 S0 J6 D6 `$ I
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! i, V( {7 A$ ^( t2 m4 [凯利指数的计算方法:    ( O1 m2 a  L3 d; F& D  k
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G3=S*S',G1=B*B',G0=F*F';(S:胜赔,B:平赔,F:负赔,S'欧平均胜率,B'欧平均平率,F'欧平均负率)
1 C6 ]" c9 R# G& l什么?对于一家特定的公司,它的主胜的凯利指数G3=S*S'!你选择的公司样本不同,G值就不同,样本大小不同,G值也不同(一般的欧均值都取99家公司,从统计学的意义上来讲,还称不上样本!)这个G带有随意性,大个0.05小个0.08之类的,也只能算做误差,现在要我比较G与0.89哪个大?我大你个0.05怎么了?我小你个0.08又有什么干系?  H% P+ \' B9 l  U8 T. [. e8 V5 H3 V! E, F, P8 q# r
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既然涉及到平均胜率,那么看一下胜率是怎么求出来的:平均主胜率S'=(S1'+S2'+….Sn')/n,S1'是第一家公司的主胜率,S2'是第二家公司的主胜率,以此类推。主胜率S'=r/S(r:赔付率)。赔付率(返还率)又是这样求的:r=1/(1/S+1/B+1/F),什么??又做梦了!!返还率是庄家也要到裁判终场哨响才知道的,这样也行??AC米兰踢亚特兰大,哨响了,投注比固定了,但踢出3,这场返还率可能是150%,踢出1可能是20%,踢出0,可能是5%,结果不同,返还率也不同啊!这里也可以看到,博彩公司不喜欢操控比赛,因为他想操控的只能是这种强弱分明的比赛,但强队踢假球的成本更高,它想操控也操控不了,最好的选择就是烧烧香:天哪,爆个冷吧!    ! k9 e0 s# e- W$ }! S$ U
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& `. ~4 I3 D+ a8 t; M. C做下算术了:    2 i( y$ \  W: ~: {8 \" `
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(1)SSP:    2.22    3.15    3.01    : `4 u/ N9 a2 y  W3 e8 }9 n6 }3 T& V: W  u5 f: h
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(2)立博:    2.10    3.25    3.00   
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(3)威廉:    2.20    3.10    2.87    : D' ~# K. v* J, ^* k$ [  t
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, {! k. ]( A$ L6 G, i(4)易胜博:2.25    3.10    2.95   
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+ ]. e$ K7 O5 W6 u我们假设就取这四家公司为某场比赛开出的赔率来计算凯利值    1 `, X/ m! M7 \
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  \8 b2 I- m" [% U2 \S1=2.22    B1=3.15    F1=3.01   
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S2=2.10    B2=3.25    F2=3.00   
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) N9 s# N& e& y, {6 q  C" e) B$ b+ IS3=2.20    B3=3.10    F3=2.87   
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S4=2.25    B14=3.10    F4=2.95    ! ~0 p7 C' v# @. v; y  G+ \" d. Y7 \# W/ l; N! W2 b* r* v
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1/r1=1/S1+1/B1+1/F1=1/2.22+1/3.15+1/3.01    =>    r1=0.91    8 ?7 F' \1 l; ~- L7 v
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1/r2=1/S2+1/B2+1/F2=1/2.10+1/3.25+1/3.00    =>    r2=0.90    # t0 ?( P  e* X% l
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$ m' y6 g& G0 a1 j1/r3=1/S3+1/B3+1/F3=1/2.20+1/3.10+1/2.87    =>    r3=0.89    % h8 r* k9 }8 X/ Q5 J' q
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1/r4=1/S4+1/B4+1/F4=1/2.25+1/3.10+1/2.95    =>    r4=0.90   
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) Q# }, n: T3 }. g- I/ T* }" HS1'=1/(S1*r1)=1/(2.22*0.91)=41    : W# q# m$ g# T$ a) Q$ p- k. D# o; A* e

9 k( \: M1 q/ W4 ]8 B5 g类似的计算后,于是:    # s3 M- z! s6 q8 s- Z8 M  j% U8 n3 U! O) o- {
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S1'=41    B1'=29    F1'=30;    5 h. e3 I7 o* a" I$ A0 S! v
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S2'=43    B2'=28    F2'=30    3 e- T: x' @% _% l" w5 s( ]# J- O# N# j8 C1 i- E3 |( |
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! V- l! f6 H- h5 W. ^S3'=40    B3'=29    F3'=31   
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# E9 ?: C* a4 p  z/ F2 X+ U4 sS4'=40    B4'=29    F4'=31    1 I/ Q" U* e! i8 k
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(注意:3,4两家公司,赔率不同,但它们的胜,平,负率相同了)    8 [+ b0 b& X# U( [. o3 t; B: N: G4 i5 E' T! q" a* Q
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好:S'=(S1'+S2'+S3'+S4')/4=(41+43+40+40)/4=41   
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B'=(B1'+B2'+B3'+B4')/4=(29+28+29+29)/4=28.75   
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4 l3 L' N2 d( |5 s: o* }2 eF'=(F1'+F2'+F3'+F4')/4=(30+30+31+31)/4=30.5    7 u$ C8 s5 P; B9 N5 }
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于是:    / s+ X- G$ g6 i& P  E8 u9 j! |0 ?2 D' Z: u, d- P' M* t6 U
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7 S* E5 n- V1 l/ r: F2 |) wG31=S1*S'=2.22*41=91.02    ! B$ E, |, X) y+ M3 n$ `! t+ ~" M- b  ~( s# v8 w
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$ j+ ~" e$ I5 W/ U" MG11=B1*B'=3.15*28.75=90.56    5 x  |- @% T/ h0 ?+ |7 y. F

- b$ y) f5 w& y8 X$ w: ?$ @G01=F1*F'=3.01*30.5=91.8    2 b6 B# O% q. }" I: W0 ]) }/ }  F8 N0 b; _0 H# T: W

  l! ]4 ~6 d2 I5 h+ f# }; a  {当然其它几家公司的凯利值也可以通过同样的方法求得,当然,事实上你不用去求(每场比赛这样求,不累死也气死了),赔率比较网站上都是这样算的。    好,到这里你应该可以知道了,凯利指数是怎么样被扭曲的了,因为除了赔率是真的,其它的都是做梦的时候梦到的(并非是攻击凯利指数,这个,前文和接下来的一比较就可以发现了)。    + J& N& @* n# J/ ]6 \% g; N5 J+ b# _+ s3 Y; U) ^
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' ]# `/ |$ F$ j8 Z# \% I) s* M通过对多家凯利指数的对比统计分析可以找出,数值变化与赛果之间的微妙关系,在足彩分析投注中能把握更多的冷门机会。
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数值变化与赛果之间的微妙关系,在足彩分析投注中能把握更多的冷门机会。
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进来学习一下
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这个太深奥了,看不懂
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主题回复处广告图案-天策传媒
这么高深 概率论研究的很好啊
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