Hi, Matt: that was a great question, because the whole debate depends on understanding the input.
suppose letters are input to the system. Every letter has a predefined representation. C=[1100000] O=[1010000] W=[1001000] H=[1000100] Since all four letters have 1st bit overlapping, their SRD's are going to have overlapping bits. suppose their SDR's are: C=[00010000010000100010000000000100001] O=[01000000010000100010000000000100100] W=[00010000010000100010000001000000100] H=[00010010000000100010000000000100001] I am trying to build a heirarchy. So from temporal pooler i am planning on building higher level SDR. So a word 'COW' will have a SDR and 'HOW' will have a SDR. now a very simple question: Would COW and HOW have overlapping bits? Cant say they will be semantically similar coz both mean different. But actual semantics is too high level. like in subutai's exp. fox had a representation which was semantically similar to something that ate rodent, Do you think these two words COW and HOW should have some representational similarities. I discussed this problem with my roomate, who knows nothing about AI or brain or programming. He said both words sound same mostly. If there was some noise in the surrounding when i heard these words,my prediction could have predicted either of them with equal probability. two words that sound similar, means our cochlea generates significantly similar signals for both, have similar representation in our low level brain, they need not have similar meaning. Both words are distinct[HOW] [COW}, but since last two letters are same, they sound a bit similar, so should they have little semantic similarity? thanks _______________________________________________ nupic mailing list [email protected] http://lists.numenta.org/mailman/listinfo/nupic_lists.numenta.org
