LFD Book Forum Why we need to shuffle the samples in SGD ?
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#1
05-01-2013, 03:04 AM
 skwong Member Join Date: Apr 2013 Location: Hong Kong Posts: 13
Why we need to shuffle the samples in SGD ?

In hw5, Q8 Q9. I've done the SGD, then I tried not to shuffle the 100 samples, instead, calculate from 1 to 100 in each epoch, and they come up with similar result.
#2
05-01-2013, 12:14 PM
 yaser Caltech Join Date: Aug 2009 Location: Pasadena, California, USA Posts: 1,478
Re: Why we need to shuffle the samples in SGD ?

Quote:
 Originally Posted by skwong In hw5, Q8 Q9. I've done the SGD, then I tried not to shuffle the 100 samples, instead, calculate from 1 to 100 in each epoch, and they come up with similar result.
The shuffle is done anew for every epoch to get the benefit of randomness. For some data sets randomness doesn't make that much of a difference, but for some it does.
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