3 ms·

Principal component analysis and then ignoring the least important components is the only compression technique I know. Hope it helps.

• sampo 12y ago
  Well that is a lossy compression, can work nicely to some data (e.g. images), but totally irrelevant in the context of source code compression.
  • tormeh 12y ago
    Well, he didn't say he only wanted non-lossy compression or that he was working on source code compression.
  • vardump 12y ago
    Lossy compression might be just fine for source code, as long as the lossy part is still functionally equivalent. Think 1000.0 vs 1E3, printf("foo") vs puts("foo"), etc.
    • mistercow 12y ago
      And in fact, RegPack is lossy compression (as are all minifiers). The transformation is totally irreversible.