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Tailoring density estimation via reproducing kernel moment matching

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons83946

Zhang X, Smola A, Gretton,  A
Department Empirical Inference, Max Planck Institute for Biological Cybernetics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons84193

Schölkopf,  B
Department Empirical Inference, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Zitation

Song, L., Zhang X, Smola A, Gretton, A., & Schölkopf, B. (2008). Tailoring density estimation via reproducing kernel moment matching. Proceedings of the 25th International Conference on Machine Learning (ICML 2008), 992-999.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0013-C843-B
Zusammenfassung
Moment matching is a popular means of parametric density estimation. We extend this technique to nonparametric estimation of mixture models. Our approach works by embedding distributions into a reproducing kernel Hilbert space, and performing moment matching in that space. This allows us to tailor density estimators to a function class of interest (i.e., for which we would like to compute expectations). We show our density estimation approach is useful in applications such as message compression in graphical models, and image classification and retrieval.