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  Learning with Non-Positive Kernels

Ong, C., Mary, X., Cnu, S., & Smola, A. (2004). Learning with Non-Positive Kernels. In R. Greiner, & D. Schuurmans (Eds.), ICML '04: Twenty-First International Conference on Machine Learning (pp. 639-646). New York, NY, USA: ACM Press.

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externe Referenz:
https://dl.acm.org/citation.cfm?doid=1015330.1015443 (Verlagsversion)
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Urheber

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 Urheber:
Ong, CS1, Autor           
Mary , X, Autor
Cnu, S, Autor
Smola, AJ1, Autor           
Affiliations:
1External Organizations, ou_persistent22              

Inhalt

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 Zusammenfassung: n this paper we show that many kernel methods can be adapted to deal with indefinite kernels, that is, kernels which are not positive semidefinite. They do not satisfy Mercer‘s condition and they induce associated functional spaces called Reproducing Kernel Kreicaron;n Spaces (RKKS), a generalization of Reproducing Kernel Hilbert Spaces (RKHS).Machine learning in RKKS shares many "nice" properties of learning in RKHS, such as orthogonality and projection. However, since the kernels are indefinite, we can no longer minimize the loss, instead we stabilize it. We show a general representer theorem for constrained stabilization and prove generalization bounds by computing the Rademacher averages of the kernel class. We list several examples of indefinite kernels and investigate regularization methods to solve spline interpolation. Some preliminary experiments with indefinite kernels for spline smoothing are reported for truncated spectral factorization, Landweber-Fridman iterations, and MR-II.

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 Datum: 2004-07
 Publikationsstatus: Erschienen
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 Ort, Verlag, Ausgabe: -
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 Art der Begutachtung: -
 Identifikatoren: DOI: 10.1145/1015330.1015443
BibTex Citekey: 3416
 Art des Abschluß: -

Veranstaltung

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Titel: Twenty-First International Conference on Machine Learning (ICML 2004)
Veranstaltungsort: Banff, Canada
Start-/Enddatum: 2004-07-04 - 2004-07-08

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Quelle 1

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Titel: ICML '04: Twenty-First International Conference on Machine Learning
Genre der Quelle: Konferenzband
 Urheber:
Greiner, R, Herausgeber
Schuurmans, D, Herausgeber
Affiliations:
-
Ort, Verlag, Ausgabe: New York, NY, USA : ACM Press
Seiten: - Band / Heft: - Artikelnummer: 81 Start- / Endseite: 639 - 646 Identifikator: ISBN: 1-58113-838-5