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https://hdl.handle.net/2440/55349
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Type: | Conference paper |
Title: | Improving gaussian processes classification by spectral data reorganizing |
Author: | Zhou, H. Suter, D. |
Citation: | Proceedings of the 19th International Conference on Pattern Recognition (ICPR), Tampa, Florida, USA., 2008: pp.1-4 |
Publisher: | IEEE |
Publisher Place: | Online |
Issue Date: | 2008 |
Series/Report no.: | INTERNATIONAL CONFERENCE ON PATTERN RECOGNITION |
ISBN: | 9781424421756 |
ISSN: | 1051-4651 |
Conference Name: | International Conference on Pattern Recognition (19th : 2008 : Florida) |
Statement of Responsibility: | Hang Zhou and David Suter |
Abstract: | We improve Gaussian processes (GP) classification by reorganizing the (non-stationary and anisotropic) data to better fit to the isotropic GP kernel. First, the data is partitioned into two parts: along the feature with the highest frequency bandwidth. Secondly, for each part of the data, only the spectrally homogeneous features are chosen and used (the rest discarded) for GP classification. In this way, anisotropy of the data is lessened from the frequency point of view. Tests on synthetic data as well as real datasets show that our approach is effective and outperforms Automatic Relevance Determination (ARD). |
DOI: | 10.1109/ICPR.2008.4761790 |
Published version: | http://dx.doi.org/10.1109/icpr.2008.4761790 |
Appears in Collections: | Aurora harvest 5 Computer Science publications |
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