Its true that after repeated submissions of the two sequences, the Classifier will vote on X or C's bucket with more reliability. Otherwise, from what I understand, the TemporalMemory will look for active segments leading from its active cells (cells in the column(s) indicating "B"), to see which Segments have Synapses who's permanence is above minThreshold, and those will be the "predicted" Synapses; and those post-synaptic cells will be the predicted cells - which belong to columns indicating the TemporalMemory's next prediction after "B".
How's that for confusion? :-) On Fri, Aug 7, 2015 at 2:00 PM, Chandan Maruthi <[email protected]> wrote: > @cogmission > If thats right i get it, but it doesnt make sense at the the 2nd B you > should know that there is a high probabilty of X or C based on the most > recent context > > > > > On Friday, August 7, 2015, cogmission (David Ray) < > [email protected]> wrote: > >> Hi Chandan, >> >> He's saying that nothing determinant can be predicted at B - and all >> possible sequences that are equally predictable will therefore be predicted >> because at B, both sequences are ambiguous or equally probable. >> >> Does that help? >> >> >> On Fri, Aug 7, 2015 at 1:10 PM, Chandan Maruthi < >> [email protected]> wrote: >> >>> Yuwei, >>> So you you are saying that at the 2nd B it should be able predict if its >>> in the X or C sequence is that right? How does this work? >>> >>> >>> On Friday, August 7, 2015, Yuwei Cui <[email protected]> wrote: >>> >>>> Hi Chandan, >>>> >>>> It is not possible to disambiguate the two sequences at the highlighted >>>> B. So NuPIC will predict both C & X at that point. However, only one of the >>>> predictions will be confirmed at the next step. So if we are indeed in >>>> sequence 1, it will predict only Y after X, and vice versa. >>>> >>>> In other words, TM handles branching temporal sequences by maintaining >>>> predictions about multiple possible inputs until there is sufficient >>>> disambiguating evidence. Does it make sense? >>>> >>>> Yuwei >>>> >>>> On Fri, Aug 7, 2015 at 10:09 AM, Chandan Maruthi < >>>> [email protected]> wrote: >>>> >>>>> Question on Synaptic Connections >>>>> Consider 2 sequences >>>>> >>>>> Sequence 1: AAA*BXY*AAA*BXY*AAA*BXY* >>>>> Sequence 2: AAA*BCD*AAA*BCD*AAABCD >>>>> >>>>> >>>>> Consider the B highlighted, how does Nupic know that it is in sequence >>>>> 1 vs sequence2 >>>>> when the transition from A to B happens, how does it know that it is >>>>> in the ABX sequence vs ABC. Also once it starts seeing ABX vs ABC, how >>>>> does >>>>> it know that the ABX sequence is more relavant at the moment.. >>>>> >>>>> >>>>> -- >>>>> Regards >>>>> Chandan Maruthi >>>>> >>>>> >>>> >>> >>> -- >>> Regards >>> Chandan Maruthi >>> >>> >>> >> >> >> -- >> *With kind regards,* >> >> David Ray >> Java Solutions Architect >> >> *Cortical.io <http://cortical.io/>* >> Sponsor of: HTM.java <https://github.com/numenta/htm.java> >> >> [email protected] >> http://cortical.io >> > > > -- > Regards > Chandan Maruthi > > > -- *With kind regards,* David Ray Java Solutions Architect *Cortical.io <http://cortical.io/>* Sponsor of: HTM.java <https://github.com/numenta/htm.java> [email protected] http://cortical.io
