Whitening

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(2D example)
(ZCA Whitening)
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When using ZCA whitening (unlike PCA whitening), we usually keep all <math>\textstyle n</math> dimensions
When using ZCA whitening (unlike PCA whitening), we usually keep all <math>\textstyle n</math> dimensions
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of the data, and do not try to reduce its dimension.
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of the data, and do not try to reduce its dimension.  Mapping to biology, ZCA whitening is also often thought of as approximating
 +
the processing that is performed on an image by the retina in the eye.
== Regularizaton ==
== Regularizaton ==

Revision as of 23:37, 29 April 2011

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