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On the limitations of embedding methods

Published: 27 June 2005 Publication History

Abstract

We show that for any class of functions H which has a reasonable combinatorial dimension, the vast majority of small subsets of the combinatorial cube can not be represented as a Lipschitz image of a subset of H, unless the Lipschitz constant is very large. We apply this result to the case when H consists of linear functionals of norm at most one on a Hilbert space, and thus show that “most” classification problems can not be represented as a reasonable Lipschitz loss of a kernel class.

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Published In

cover image Guide Proceedings
COLT'05: Proceedings of the 18th annual conference on Learning Theory
June 2005
690 pages
ISBN:3540265562
  • Editors:
  • Peter Auer,
  • Ron Meir

Sponsors

  • Pascal
  • Google Inc.
  • Machine Learning Journal/Springer
  • BiCi

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Springer-Verlag

Berlin, Heidelberg

Publication History

Published: 27 June 2005

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