| http://www.w3.org/ns/prov#value | - The k-th nearest neighbor approach is one type of the more general variable bandwidth kernel estimator (VBKE) function, which takes the form: f ??? ( x ) = 1 N ??? ??? i = 1 N ??? 1 h x d ??? K ??? ??? ( x - O ??? ( i ) h x ) where N is the number of observations, O (i) is observation i, hx is a kernel bandwidth, d is the number of dimensions being used, and K is a kernel estimator.
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