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TR-563-95
Concept Learning with Geometric Hypotheses
Authors: Dobkin, David P., Gunopulos, Dimitrios
Date:December 1995
Pages:8
Download Formats: [Postscript]
Abstract:
We present a general approach to solving the minimizing disagreement problem for geometric hypotheses with finite VC-dimension. These results also imply efficient agnostic-PAC learning of these hypotheses classes. In particular we give an O(nmin{alpha + ½ , 2k-1} log n) algorithm that solves the m.d.p. for two-dimensional convex k-gon hypotheses (where alpha is the VC dimension of the implied set system, k is constant), and an O(n3k-1log n) algorithm for convex k-hedra hypotheses in three dimensions. We extend these results to handle unions of k-gons and give an approach to approximation algorithms.