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1. , .
2. : . 50 90% .
3. , . 3 , , onpez
4. Yt .
5. Yf Y,
, 2. ] R2 R2 , .
. (double cross-validation) .
(double cross-validation)
, . , - . , \/ .
, . [31].
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, . , D2 D3 . :
Y, ^a+b1Dj+b2D2-irb3D3
" " . , Dl9 D2n D3 ,
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^ -
Dl = 1 D2 = D3
Yi=a+b1
, { , . 2 3 . " " , . [32].