MNIST error

[JosefOndrej]

Hi, I tried to run the mnist test file htmresearch/projects/image_test/run_mnist_experiment.py and I got the following error RuntimeError: Matching Python module for ImageSensor not found.. I tried to google it and found these two topics:

RuntimeError: Matching Python module for ImageSensor not found

MNIST test problem

Hi, I am working now on image_test at nupic.research/projects for MNIST classification. By running experiment: python experiment.py I have got the following error: ERR: Matching Python module for ImageSensor not found. [/home/binh/nupic/nupic.core/src/nupic/engine/RegionImplFactory.cpp line 431] Could you pls tell me, where can I import the module ImageSensor? Best thanks, Binh

I followed the instructions and tried to install nupic.vision (I am now able to import nupic.vision even from nupic.vision.regions.ImageSensor import ImageSensor works), but after running the mnist experiment again I get the same error. Could someone please give a step by step manual how could I get the experiment running from scratch? It looks like a cool project and it is really frustrating that it doesn’t work right out of the box.

[MaxLee]

I see on that same thread, at the tail-end of it, this hint was given.

Try that.

MNIST test problem

I just pulled the latest changes from nupic.vision. The only changes I needed to do was change “maxBoost” to “boostStrength” in run_mnist_experiment.py and remove line 166 sensor.setParameter("explorer",yaml.dump(["Flash"])) After that it runs for me with the head nupic code from yesterday.

[JosefOndrej]

Thanks for the reply. I read that hint, the problem is that it is quite old and in the latest version of the file there is no parameter maxBoost and the line 166 looks different. I tried to search for the line and found two lines that probably do the same, I removed them but it did not help.

[fcred]

The tip version of nupic.vision already incorporates all the needed changes and should run with no changes. I just tried it.
Perhaps your Python path does not include nupic.vision/src.

[JosefOndrej]

Can I ask what is the exact configuration you are running the experiment in? I have nupic.vision/src in my python path and I am still getting the same error.

[fcred]

I am running Anaconda Python 2.7 on Mojave on a Mac.

This is my command line:
~/Development/nupic.vision/src#python nupic/vision/mnist/run_mnist_experiment.py --data-dir ./nupic/vision/mnist/data

Note that I am running this from the nupic.vision/src folder. Hence I even do not have to set the python path to here for this to work.

[JosefOndrej]

Thank you! I finally got it working. The problem was that I tried to run the experiment in htmresearch repository and not the one in nupic.vision.