... i k = l , , n, c h ỳ n g ta c ú t h t ớn h c m a tr n t n g q u a n ( c o v a r i a n c e m a trix ) c a cỏ c g i ỏ tr u v o o, -/0(*y -M,) ^ / V _ n !.} = 1*) C o \ x , x ) = ... Tng vo v tang c dung nh cac nut e lu lan lt b m vo v cho mụ hỡnh, tng n cung cp mt phng thc dờ phỏt hin nhng múi quan h gia d liu õu vo v xuat nhng moi quan h Ian Tnroc kiới cung cp d liu cho ... ohavi, R and John, G H : Wrappers for Feature Subset Selection Artificial Intelligence (1997) p a s e s : 73-324 Blum , A and L angley, p.: Selection o f R elevant Features and Exam ples in M achine...