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Jul 10, 2015 at 18:37 comment added RockTheStar Sorry to bring this question up again. I think Autoencoder can encourage sparsity as well, i.e. sparse autoencoder.
Dec 2, 2014 at 2:30 vote accept RockTheStar
Oct 12, 2014 at 18:07 comment added bayerj Having a fixed map that has been estimated in order to follow some constraint (here: sparse result) is less powerful than having an optimiser that tries to find a solution like that over possibly many iterations.
Oct 10, 2014 at 19:44 comment added RockTheStar Sorry, can you elaborate on this?
Oct 10, 2014 at 8:18 comment added bayerj There is no general rule like that. SC has one benefit over AEs: encoding via optimisation can be very powerful.
Oct 9, 2014 at 22:02 comment added RockTheStar Thanks for your answer! So is that mean sparse coding should not be used in any case, but autoencoder? Also, there should be an extra term in sparse coding which regularize W?
Oct 9, 2014 at 18:51 history answered bayerj CC BY-SA 3.0