Data di Pubblicazione:
2014
Abstract:
We address the issue of separating two finite sets in R-n by means of a suitable revolution cone
Gamma(z,y,s) = {x is an element of R-n : s parallel to x-z parallel to - y(T) (x - z) = 0}.
One has to select the aperture coefficient s, the axis y, and the apex z in such a way as to meet certain optimal separation criteria. The homogeneous case z = 0 has been treated in Part I of this work. We now discuss the more general case in which the apex of the cone is allowed to move in a certain region. The non-homogeneous case is structurally more involved and leads to challenging nonconvex nonsmooth optimization problems.
Tipologia CRIS:
01.01 Articolo in rivista
Keywords:
Conical separation; revolution cone; alternating minimization; DC programming; classification
Elenco autori:
Astorino, Annabella
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