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What is the difference between independent subspace analysis (ISA) and independent component analysis (ICA)?

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  • $\begingroup$ The search for "independent space analysis" yields only 7 results on Google Scholar and these look mostly irrelevant; are you sure this term really exists? $\endgroup$ – amoeba Jan 27 '15 at 10:39
  • $\begingroup$ yes, I did! I think it's pretty new. I had this word in the paper "Learning hierarchical invariant spatio-temporal features for action recognition.", but I don't quite understand what exactly it is. $\endgroup$ – RockTheStar Jan 27 '15 at 18:23
  • $\begingroup$ Aha, so it is "independent SUBSPACE analysis"! Now I get 1000+ results on Google Scholar. $\endgroup$ – amoeba Jan 27 '15 at 18:47
  • $\begingroup$ great! Ya, independent subspace analysis. $\endgroup$ – RockTheStar Jan 27 '15 at 22:13

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