A New Method in Order to Determine the most Significant Members within a Large Sample, in Problems of Surface Approximation
Mira Bozzini, Flavia de Tisi, Licia Lenarduzzi · SIAM Journal on Scientific and Statistical Computing · 1986
From an initial large sample a smaller, yet representative subsample is to be determined. As an alternative to the principal component method, a new method is proposed: “domains of influence” of each datum relative to nearby data and a hierarchy of significance are determined. The properties are discussed and numerical examples are given.