Convex Hulls As An Hypothesis Language Bias
Author(s)
D. A. Newlands & G. I. Webb
Abstract
Classification learning is dominated by systems which induce large numbers of
small axis-orthogonal decision surfaces which biases such systems towards particular
hypothesis types. However, there is reason to believe that many domains
have underlying concepts which do not involve axis orthogonal surfaces. Further,
the multiplicity of small decision regions mitigates against any holistic appreciation
of the theories produced by these systems, notwithstanding the fact that many
of the small regions are individually comprehensible. We propose the use of less
strongly biased hypothesis languages which might be expected to model concepts
using a number of structures close to the number of actual structures in the domain.
An instantiation of such a language, a convex hull based classifier, CHI, has been
implemented to investigate
Keywords
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