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  Learning the Kernel with Hyperkernels

Ong, C., Smola, A., & Williamson, R. (2005). Learning the Kernel with Hyperkernels. The Journal of Machine Learning Research, 6, 1043-1071.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-D50B-4 Version Permalink: http://hdl.handle.net/21.11116/0000-0004-D7AC-8
Genre: Journal Article

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 Creators:
Ong, CS1, 2, Author              
Smola, A, Author              
Williamson, R, Author
Affiliations:
1Department Empirical Inference, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497795              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              

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 Abstract: This paper addresses the problem of choosing a kernel suitable for estimation with a Support Vector Machine, hence further automating machine learning. This goal is achieved by defining a Reproducing Kernel Hilbert Space on the space of kernels itself. Such a formulation leads to a statistical estimation problem similar to the problem of minimizing a regularized risk functional. We state the equivalent representer theorem for the choice of kernels and present a semidefinite programming formulation of the resulting optimization problem. Several recipes for constructing hyperkernels are provided, as well as the details of common machine learning problems. Experimental results for classification, regression and novelty detection on UCI data show the feasibility of our approach.

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 Dates: 2005-07
 Publication Status: Published in print
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 Rev. Method: -
 Identifiers: BibTex Citekey: 3512
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Title: The Journal of Machine Learning Research
Source Genre: Journal
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Publ. Info: Cambridge, MA : MIT Press
Pages: - Volume / Issue: 6 Sequence Number: - Start / End Page: 1043 - 1071 Identifier: ISSN: 1532-4435
CoNE: https://pure.mpg.de/cone/journals/resource/111002212682020_1