Hi Aseem, Under the current implementation, we'll usually have the SP activate the same columns for W in COW and HOW. The cells chosen in those columns by the TP will, however, be different (because the chain of predictive connections from H-cells to O-cells to W-cells and from C-cells to O and W-cells will differ).
The SP therefore represents the input and the TP-driven choices of cells represents the preceding sequence. Regards, Fergal Byrne On Mon, Mar 10, 2014 at 3:35 PM, Matthew Taylor <[email protected]> wrote: > Maybe a dumb question, but when we're talking about "W", are you > talking about the letter W or the idea of W or the sound W or what? > Aseem, what would be the actual raw input to the system you're > imagining? Are you tackling text parsing? > --------- > Matt Taylor > OS Community Flag-Bearer > Numenta > > > On Mon, Mar 10, 2014 at 3:22 AM, Marek Otahal <[email protected]> > wrote: > > > > On Mon, Mar 10, 2014 at 11:08 AM, Aseem Hegshetye < > [email protected]> > > wrote: > >> > >> > >> every letter has its own representation. should the letter 'W' have > same > >> representation in both words because it comes after 'O' or it should > have > >> different representation because 'O' that precedes it is actually > preceded > >> by two different letters 'H' and 'C' ? > > > > the context spans longer (dependent on calling TP.reset() and an "aging > > variable") sequences, so the representations will differ. > > > >> > >> Should 'W' have same cells firing in both words? [ columns for 'W' will > be > >> same] > > > > ok, now im not sure if i understand. The representation of letter W by > > encoder will always be the same, The "end-result" representation > (output of > > CLA after feeding the sequence) will be different for the two cases of > 'W', > > see above. > > > > cheers, > > > > _______________________________________________ > > nupic mailing list > > [email protected] > > http://lists.numenta.org/mailman/listinfo/nupic_lists.numenta.org > > > > _______________________________________________ > nupic mailing list > [email protected] > http://lists.numenta.org/mailman/listinfo/nupic_lists.numenta.org > -- Fergal Byrne, Brenter IT <http://www.examsupport.ie>http://inbits.com - Better Living through Thoughtful Technology http://ie.linkedin.com/in/fergbyrne/ https://github.com/fergalbyrne e:[email protected] t:+353 83 4214179 Formerly of Adnet [email protected] http://www.adnet.ie
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