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numenta / nupic-legacy

Numenta Platform for Intelligent Computing is an implementation of Hierarchical Temporal Memory (HTM), a theory of intelligence based strictly on the neuroscience of the neocortex.
http://numenta.org/
GNU Affero General Public License v3.0
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Fix destruction of synapses when destroying segment #3880

Open dan-mk opened 4 years ago

dan-mk commented 4 years ago

When the predictedSegmentDecrement TM parameter is set to some value greater than 0, I was getting this error:

Captura de tela de 2019-08-07 02-42-00

Using the destroySynapse function prevents the error in my tests.

rhyolight commented 4 years ago

@dan-mk Can you update the test suite to fail when predictedSegmentDecrement is non-zero? It would be best to expose this as an error in an existing test suite.

rhyolight commented 4 years ago

BTW @dan-mk, this repository is in maintenance mode. There is no guarantee this contribution will be merged anytime soon. See the README for details. The currently active HTM C++/Python project is https://github.com/htm-community/htm.core

dan-mk commented 4 years ago

@rhyolight I'm not sure about the right way to contribute to the test suite, so I'm attaching a modified "hello_tm" that should show the error before 60k iterations. If it does not, I've probably done something wrong

Captura de tela de 2019-08-21 03-30-30

hello_tm.zip

I understand this repository is in maintenance mode and that it's not a critical bug (since it seems like I'm the first one having problems with this), so no problem if it's not merged

I'm also aware about the community repository, but I had the same error with its code, except that it gave me a segfault which is not as easy to debug haha