I just added a question to the wiki... Is there any biological significance to the relationship between sensory types that can be encoded/patterned more easily than others, and the order in which we biologically develop and create SDRs?
On Mon, Dec 8, 2014 at 1:10 PM, Dennis S. Sedov <[email protected]> wrote: > I have few questions. > > 1) I have good understanding on how to encode scalar values. I’m working > on the vision problem at the moment and stumbled upon the coding of the > video signal. The size of the sensor is relatively small (8x8 pixels), > however I would like to ensure that the the value of each pixel is part of > the coding process (0-255). Does it mean that in order to achieve sparsity > I should treat each pixel as a scalar encoder, thus resulting in 64 > encoders? > > 2) Given the idea of sparse distributed representations, copied from the > human brain, how is vision signal coded and becomes sparse in the V1? Does > approximately 1 million afferent inputs from the retina get sparse? Do this > inputs get coded first to represent features (gabor filters, direction of > the feature’s motion etc) and then become sparse? Is the “spatial pooler” > of V1 just so much bigger then the afferent signal size (1 million afferent > signals vs 50 million mini columns in V1) ? > > 3) I’ve read that both motor signal and sensory signal are used in order > to achieve sensory-motor transition representation. If this idea is > overlaid on the HTM framework, how do these two inputs are added/mixed in a > single region? This can be a question of multiple sources feeding the same > region as well, in general. How Layer 4 knows the difference between > sensory and motor signals to learn sensory-motor transitions? > > > Sincerely, > Dennis S. Sedov > > On Dec 8, 2014, at 10:49 AM, Michael Klachko <[email protected]> > wrote: > > My question: is there a plan to update HTM white paper on Numenta > website? It seems like it hasn't been touched since 2011. > > On a related note, any plans to write a second edition of "On > Intelligence"? This is still the main source of information people refer to > when they discuss HTM, and it's missing important ideas developed in the > last decade (like SDR). > > > > > > > On Mon, Dec 8, 2014 at 10:34 AM, Matthew Taylor <[email protected]> wrote: > >> Any questions you leave here, I'll have prepared in a Wiki page for the >> office hour for reference. We'll take live questions first, then Q&A >> questions, then address the questions on the wiki. >> >> Thanks, >> >> --------- >> Matt Taylor >> OS Community Flag-Bearer >> Numenta >> >> On Mon, Dec 8, 2014 at 10:09 AM, Chandan Maruthi < >> [email protected]> wrote: >> >>> Btw that was a question for the office hour :-) >>> >>> On Mon, Dec 8, 2014 at 10:08 AM, Chandan Maruthi < >>> [email protected]> wrote: >>> >>>> I have a question. >>>> >>>> I see we have a few frameworks within numenta. Network API, OPF etc. >>>> Whats the general direction going forward. Where you would suggest one >>>> framework vs another. >>>> Is there more support for specific frameworks in the product roadmap . >>>> >>>> >>>> Regards >>>> Chandan Maruthi >>>> >>>> >>>> On Mon, Dec 8, 2014 at 7:43 AM, Matthew Taylor <[email protected]> >>>> wrote: >>>> >>>>> Hello NuPIC, >>>>> >>>>> We'll be holding another office hour today. >>>>> >>>>> >>>>> https://plus.google.com/b/100642636108337517466/events/c89fj875svdde9si3dffkq373s0 >>>>> >>>>> We don't have a topic set yet, but I'm open to suggestions. >>>>> >>>>> Please contact me if you want to join directly and ask a question. >>>>> Otherwise, you can use the Hangout Q&A interface to ask questions or >>>>> respond to this email with your question or comment. >>>>> >>>>> --------- >>>>> Matt Taylor >>>>> OS Community Flag-Bearer >>>>> Numenta >>>>> >>>> >>>> >>> >> > >
