Implement NetworkAPI example

[breznak]

A user is having a problem with SDRClassifier on numenta's, we'd like to replicate the provided experiment (runnable source code and data here numenta/nupic-legacy#3875 )

This way we can

• validate our Classifier has/not the bug?
• have a working NetworkAPI Hotgym example, related Real-life benchmark: Hotgym example using C++ algorithms #30

Related c++ Classifier region #309 , but this is not required, as the example runs python.

[breznak]

CC @dkeeney

[dkeeney]

we'd like to replicate the provided experiment

I can add this to my plate but I cannot do any work until this weekend, after my guest leave.
Should not be difficult to make a NtworkAPI version of hotgym if we had the right encoder and a classifierRegion ... something like

Network n;
n.addRegion("encoder", "RandomDistributedScalarEncoder");
n.addRegion("SP", "SPRegion");
n.addRegion("TM", "TMRegion", "parameters go here");
n.addRegion("Classifier", "ClassifierRegion");
n.link("encoder", "SP");
n.link("SP", "TM");
n.link("TM", "Classifier");
n.run(EPOCHS);

Not quite as simple as that because we need to specify the non-default parameters but you get the idea.

[breznak]

Should not be difficult to make a NtworkAPI version of hotgym if we had the right encoder and a classifierRegion

Perfect. I was hoping if the orig author would be interesting in contributing the code, but we'll see.
The example is in python, so I was hoping we use python Regions (=no need to write SDRClassifier c++ region), and encoders (either from bindings, or I'll port them #462 )

Also, hotgym needs only anomaly, no?

[dkeeney]

I was hoping we use python Regions ...

yes, we can use Python Regions. That would be simpler if they have been converted to Python3.
Eventually I do want to write a ClassifierRegion so C++ only folks will have a classifier.

Also, hotgym needs only anomaly, no?

Oh, of course. So we don't even need the classifier for this. Only an encoder Region and that can be in Python. All we need to do is register the python region with Network.

[Thanh-Binh]

@dkeeney Did you write C++ ClassifierRegion? If yes, where can I find it? Thanks

[breznak]

Did you write C++ ClassifierRegion? If yes, where can I find it?

it would be in src/htm/regions/, so not yet.

[dkeeney]

Did you write C++ ClassifierRegion? If yes, where can I find it?

We would love to have one. Would you be willing to build it?

[breznak]

We have napi_hello example which does that 👍