Thursday, September 29, 2011

PCA again

PCA is a simple but rather popular techniques for feature processing and is used widely as some initial processing steps involved in many applications. However, every time when I need to do PCA, I have to find some references :<. 

Thus again, to put some information for my own reference. The figure is from the attached slides I encountered today, quite clear.


3 - Feature extraction.pdf Download this file

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