Hey Scott, Looking at predicted values. Thanks, though, I've figured it out, was an encoder issue.
Sergey On Jan 9, 2015 5:20 PM, "Scott Purdy" <[email protected]> wrote: > Sergey, there are a couple things I can think that might be the issue: > > 1. Are you looking at the predicted values or the probabilities associated > with the predictions? > 2. If your encoding has buckets too large then it may be predicted a > bucket that includes 0 and some positive numbers. When this happens, it > uses a exponential smoothing to pick the value to use for the predicted > bucket. So you may change the encoder to make sure that 0, 1, 2, etc fall > into different buckets. > > On Mon, Jan 5, 2015 at 11:18 AM, Matthew Taylor <[email protected]> wrote: > >> Sergey, >> >> It is hard to help without knowing some more about your setup. For >> example how is he feeding in the data? What are the scalar encoder >> parameters? Has he swarmed on the data? How large is the training >> data? >> >> Thanks, >> --------- >> Matt Taylor >> OS Community Flag-Bearer >> Numenta >> >> >> On Thu, Jan 1, 2015 at 4:00 PM, Sergey Alexashenko >> <[email protected]> wrote: >> > Hey all, >> > >> > Running into a problem with TemporalMultiStep prediction, wondering if >> > anyone has encountered anything similar. >> > >> > I am feeding NuPIC a stream of data that includes a numeric variable I >> am >> > trying to predict. This variable follows a pretty obvious pattern, it >> is 0 >> > for 4 periods at a time and on the 5th period has positive numeric >> value. >> > Here is a sample of the variable changing over time: >> > 0,0,0,0,2,0,0,0,0,3,0,0,0,0,1... etc >> > >> > In CL params, I have NuPIC generate predictions for steps 1-5. >> > >> > However, instead of the prediction results I am expecting, e.g.: >> > >> > 0,0,0,0,4 or 0,3,0,0,0, depending where I am in the cycle, NuPIC makes >> > predictions that look like this: >> > >> > 0.3,0.3,0.3,0.3,0.3 >> > >> > I was wondering if anyone has any idea what's going on and what I can >> do to >> > fix this issue? >> > >> > Appreciate the help, >> > >> > Sergey >> > >> > >> >> >
