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Pf(x,m)≤f(x,w)+6o,≥1-1+0 (8) In formulation (8)a point C is found (shown in Fig.4)that corresponds to a value 6',and C is called the Chebyshev point, C-J(x,w)+b*.Var(f(x,W)) Fig,4 The Chebyshev point (C) Specially,for a value b',if there are f(X,W)+6o4=0 (9) and a(6)=1-1+0 (10) then formulation (11)from (8)is got as follow P{fX,wW)≤0}≥a(b) (11) It can be seen that formulation (11)has the same form as formulation (6). From above explanation a special value b'is determined that makes formu- lation (9)equivalent to (11)no matter what kind of distribution form f(X,W) will have, So formulation (5)is transferred into f(X,W)+b0,≤0 (12) and the uncertain model in formulation (1)can be transferred into min.E{f°(X,W)}: X=〔X1,X2,…,Xw门T,W=〔W1,W2,…,WR)r, X,W∈(?,T,P) (13) s,t,E{f'(X,W)}≤0 i=1,m1 456毛 , 平 毛 , 平 少 , 几 , 五 儿 , , , 平 住 一 ,平 ’ 。 ,平 , 平 , 。 ,平 〔 , , , … , 〕 , 平 〔犷 , , 平 , … , 牙 〕 , 平 〔 口 , , , ‘ ,牙 镇 ‘ , , 尽
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