# NuPIC Community Fork

**URL:** https://discourse.numenta.org/c/engineering/community-fork/40.md

[Latest](https://discourse.numenta.org/latest.md) · [Categories](https://discourse.numenta.org/categories.md) · [Tags](https://discourse.numenta.org/tags.md)

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## [About the NuPIC Community Fork category](https://discourse.numenta.org/t/about-the-nupic-community-fork-category/3300)

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**Author:** [@rhyolight](https://discourse.numenta.org/u/rhyolight)\
**Replies:** 0

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This category is only for discussion about community development off of forks of NuPIC (and related projects).

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## [Connecting Layers in HTM.core](https://discourse.numenta.org/t/connecting-layers-in-htm-core/9890)

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**Author:** [@altshiftj](https://discourse.numenta.org/u/altshiftj)\
**Replies:** 9\
**Last updated:** [July 5, 2022, 8:25am UTC](https://discourse.numenta.org/t/connecting-layers-in-htm-core/9890 "2022-07-05T08:25:53Z")

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Hey Everybody, I am currently working on a ‘mouse in the box’ experiment with htm.core. That is, a ‘mouse’ moves randomly in a box and has vision sensing. I encode and pool vision both spatially and temporaly to create…

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## [Htm.core and Python 3.11 compatibility](https://discourse.numenta.org/t/htm-core-and-python-3-11-compatibility/10307)

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**Author:** [@altshiftj](https://discourse.numenta.org/u/altshiftj)\
**Replies:** 6\
**Last updated:** [November 20, 2024, 11:55pm UTC](https://discourse.numenta.org/t/htm-core-and-python-3-11-compatibility/10307 "2024-11-20T23:55:53Z")

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Has anyone gotten htm.core to install in python 3.11? Is anyone actively working on compatibility? My attempts in the past few days yielded no success. It seems to revolve around the notion of frames C:\\htm.core-maste…

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## [Exploring htm.core and the TM parameters](https://discourse.numenta.org/t/exploring-htm-core-and-the-tm-parameters/7386)

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**Author:** [@indy](https://discourse.numenta.org/u/indy)\
**Replies:** 11\
**Last updated:** [January 23, 2023, 3:09pm UTC](https://discourse.numenta.org/t/exploring-htm-core-and-the-tm-parameters/7386 "2023-01-23T15:09:39Z")

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Not sure if this is useful for anyone else, but playing around with the temporal memory parameters certainly helps me to understand more and more as I move along. https://3rdman.de/2020/04/hierarchical-temporal-memory-p…

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## [Anaconda and htm.core](https://discourse.numenta.org/t/anaconda-and-htm-core/6633)

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**Author:** [@Sergey](https://discourse.numenta.org/u/Sergey)\
**Replies:** 26\
**Last updated:** [September 2, 2022, 10:49am UTC](https://discourse.numenta.org/t/anaconda-and-htm-core/6633 "2022-09-02T10:49:03Z")

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Hello ! I try to install htm.core on Anaconda on Windows. I installed: python -m pip install --no-cache-dir -r bindings/py/packaging/requirements.txt python setup.py install --user --force After second string I g…

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## [Issues installing NuPic on MacOS](https://discourse.numenta.org/t/issues-installing-nupic-on-macos/9985)

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**Author:** [@Sze\_Lim](https://discourse.numenta.org/u/Sze_Lim)\
**Replies:** 1\
**Last updated:** [August 15, 2022, 1:52pm UTC](https://discourse.numenta.org/t/issues-installing-nupic-on-macos/9985 "2022-08-15T13:52:27Z")

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## [Htm.core -- code review proposition ($)](https://discourse.numenta.org/t/htm-core-code-review-proposition/9304)

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**Author:** [@sheiser1](https://discourse.numenta.org/u/sheiser1)\
**Replies:** 20\
**Last updated:** [January 11, 2022, 1:46pm UTC](https://discourse.numenta.org/t/htm-core-code-review-proposition/9304 "2022-01-11T13:46:05Z")

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Hey all! My goal: Get my htm.core wrapper reviewed by the community My question: Anyone willing to do so (for a little $)? So I’ve completed (I think) a valid 1st version of my wrapper for htm.core. The purpose of th…

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## [Htm.core -- am I getting prediction density correctly?](https://discourse.numenta.org/t/htm-core-am-i-getting-prediction-density-correctly/9299)

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**Author:** [@sheiser1](https://discourse.numenta.org/u/sheiser1)\
**Replies:** 2\
**Last updated:** [January 5, 2022, 6:01pm UTC](https://discourse.numenta.org/t/htm-core-am-i-getting-prediction-density-correctly/9299 "2022-01-05T18:01:50Z")

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Hi Guys! My goal: to measure prediction density in TM within htm.core. My question: am I doing it right? Here’s my current code: I’m doing this in order to measure precision in TM. I know I could technically achie…

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## [Does topology work in htm.core?](https://discourse.numenta.org/t/does-topology-work-in-htm-core/9150)

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**Author:** [@vladim0105](https://discourse.numenta.org/u/vladim0105)\
**Replies:** 0\
**Last updated:** [November 17, 2021, 6:07pm UTC](https://discourse.numenta.org/t/does-topology-work-in-htm-core/9150 "2021-11-17T18:07:36Z")

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I’ve been experimenting with topology and the spatial pooler, but I am getting strange results. My input consits of an SDR which has 3 circles of active bits spread out. I expect the spatial pooler to produce output whic…

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## [How to approach anomaly detection in htm.core with multivariate data](https://discourse.numenta.org/t/how-to-approach-anomaly-detection-in-htm-core-with-multivariate-data/8688)

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**Author:** [@SHA2](https://discourse.numenta.org/u/SHA2)\
**Replies:** 6\
**Last updated:** [June 26, 2021, 8:25pm UTC](https://discourse.numenta.org/t/how-to-approach-anomaly-detection-in-htm-core-with-multivariate-data/8688 "2021-06-26T20:25:30Z")

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Hi all, I’m new to HTM and would like to ask for your advice on anomaly detection in multivariate data The data looks like the following timestamp, category, value 03/04/21 07:10, CAT1, …

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## [Question about htm.core anomaly detection](https://discourse.numenta.org/t/question-about-htm-core-anomaly-detection/8678)

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**Author:** [@zrosin](https://discourse.numenta.org/u/zrosin)\
**Replies:** 6\
**Last updated:** [June 25, 2021, 9:35pm UTC](https://discourse.numenta.org/t/question-about-htm-core-anomaly-detection/8678 "2021-06-25T21:35:32Z")

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Preface: Since I’m a new user I’m not allowed to post multiple images. They are all in this gallery, and I will say the name of the image when it should be referenced in the gallery. Album — Postimages Hello, I’m new to…

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## [Column Pooler exceeds target SDR size when there is insufficient lateral support (and intertia is also insufficient). Why?](https://discourse.numenta.org/t/column-pooler-exceeds-target-sdr-size-when-there-is-insufficient-lateral-support-and-intertia-is-also-insufficient-why/8670)

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**Author:** [@klokare](https://discourse.numenta.org/u/klokare)\
**Replies:** 3\
**Last updated:** [June 24, 2021, 5:34pm UTC](https://discourse.numenta.org/t/column-pooler-exceeds-target-sdr-size-when-there-is-insufficient-lateral-support-and-intertia-is-also-insufficient-why/8670 "2021-06-24T17:34:37Z")

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Hello, all. I am working on understanding the inner works of the ColumnPooler and am curious about why the ColumnPooler exceeds the target size when there is insufficient lateral support and not enough inertia from the p…

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## [Why does model think the next value is anomaly when current value is anomaly usually?](https://discourse.numenta.org/t/why-does-model-think-the-next-value-is-anomaly-when-current-value-is-anomaly-usually/8564)

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**Author:** [@HUI\_HUI](https://discourse.numenta.org/u/HUI_HUI)\
**Replies:** 1\
**Last updated:** [May 12, 2021, 5:47am UTC](https://discourse.numenta.org/t/why-does-model-think-the-next-value-is-anomaly-when-current-value-is-anomaly-usually/8564 "2021-05-12T05:47:08Z")

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When i watch the result chart after htm.core model is finish the anomaly detect work, i find lot mistask on raw\_anomaly\_scores that often appeal after an outlier. Is it a matter of parameters? Which parameter affects the…

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## [Status of htm.core?](https://discourse.numenta.org/t/status-of-htm-core/8384)

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**Author:** [@jgab3103](https://discourse.numenta.org/u/jgab3103)\
**Replies:** 2\
**Last updated:** [April 1, 2021, 4:11am UTC](https://discourse.numenta.org/t/status-of-htm-core/8384 "2021-04-01T04:11:04Z")

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Hi all - I was finally getting some time to work on HTM stuff in python, just wondering the best way to get started as there are few implementations of HTM/Nupic. It seems like an idea might be to install htm.core and go…

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## [Htm.core on RaspberryPi4 + 64 bit Ubuntu 18.04.4 LTS](https://discourse.numenta.org/t/htm-core-on-raspberrypi4-64-bit-ubuntu-18-04-4-lts/7506)

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**Author:** [@pon\_dad](https://discourse.numenta.org/u/pon_dad)\
**Replies:** 7\
**Last updated:** [March 28, 2021, 2:40pm UTC](https://discourse.numenta.org/t/htm-core-on-raspberrypi4-64-bit-ubuntu-18-04-4-lts/7506 "2021-03-28T14:40:51Z")

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Hello, everyone. Thanks to @Paul\_Lamb’s post, I was able to install NuPIC on my RaspberryPi4. I want to use the HTM system in Python3. So, I installed htm.core on my RaspberryPi4. This post is how to install htm.cor…

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## [Recoding htm.core's hotgym.py (I'm making many errors)](https://discourse.numenta.org/t/recoding-htm-cores-hotgym-py-im-making-many-errors/7767)

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**Author:** [@mcleverley](https://discourse.numenta.org/u/mcleverley)\
**Replies:** 6\
**Last updated:** [October 15, 2020, 11:08pm UTC](https://discourse.numenta.org/t/recoding-htm-cores-hotgym-py-im-making-many-errors/7767 "2020-10-15T23:08:24Z")

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After my seemingly silly troubles installing htm.core (i ran pip install cmake, then pip install htm.core worked fine) & watching all of HTM school, I figured a good place to start would be re-coding the python examples …

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## [Eye.py & ChannelEncoder testing](https://discourse.numenta.org/t/eye-py-channelencoder-testing/7915)

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**Author:** [@mcleverley](https://discourse.numenta.org/u/mcleverley)\
**Replies:** 2\
**Last updated:** [October 5, 2020, 4:59pm UTC](https://discourse.numenta.org/t/eye-py-channelencoder-testing/7915 "2020-10-05T16:59:04Z")

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Trying to work through eye.py from htm.core’s retina\_encoder branch. Really cool stuff about topology allowing neighboring bits to redundantly encode info. It also uses openCV’s ‘contrib’ (community?) optional packages, …

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## [Small-size encoders](https://discourse.numenta.org/t/small-size-encoders/7905)

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**Author:** [@mcleverley](https://discourse.numenta.org/u/mcleverley)\
**Replies:** 5\
**Last updated:** [October 3, 2020, 4:07am UTC](https://discourse.numenta.org/t/small-size-encoders/7905 "2020-10-03T04:07:06Z")

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Trying to encode a bunch of scalars: SMART stats for hard-disk health metrics, eventually hoping to predict failure in advance with temporal memory / anomaly. Used the hotgym.py example as a base structure. I’ve tried d…

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## [Anomaly score/likelihood question](https://discourse.numenta.org/t/anomaly-score-likelihood-question/7854)

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**Author:** [@acdolphin246](https://discourse.numenta.org/u/acdolphin246)\
**Replies:** 6\
**Last updated:** [September 2, 2020, 10:30pm UTC](https://discourse.numenta.org/t/anomaly-score-likelihood-question/7854 "2020-09-02T22:30:52Z")

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Hi everyone, I have been trying to implement HTM on time series data with a recurring pattern on a weekly basis and am wondering if the anomaly scores I’ve gotten seem reasonable. Here are the plots I got using tm.anomal…

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## [Future development of fork + how 'far behind' are we?](https://discourse.numenta.org/t/future-development-of-fork-how-far-behind-are-we/7837)

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**Author:** [@mcleverley](https://discourse.numenta.org/u/mcleverley)\
**Replies:** 9\
**Last updated:** [September 2, 2020, 4:52pm UTC](https://discourse.numenta.org/t/future-development-of-fork-how-far-behind-are-we/7837 "2020-09-02T16:52:24Z")

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I’ve been coding through htm.core’s example and feel like I’m getting a hang of the encoder-SP-TM flow, but I’ve got some questions regarding future development. What is the htm.core fork currently “missing” that NuPIC…

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## [HTM for streaming analysis; TM produces Memory Error](https://discourse.numenta.org/t/htm-for-streaming-analysis-tm-produces-memory-error/7778)

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**Author:** [@Qubitza](https://discourse.numenta.org/u/Qubitza)\
**Replies:** 0\
**Last updated:** [August 5, 2020, 9:19am UTC](https://discourse.numenta.org/t/htm-for-streaming-analysis-tm-produces-memory-error/7778 "2020-08-05T09:19:14Z")

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Hi together, I’m trying to set up a streaming analysis system using the htm.core community fork. Like other members of the forum, I am facing the problem that the TM does not destroy synapses. At some point, the TM con…

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## [Debugging htm.core in Visual Studio](https://discourse.numenta.org/t/debugging-htm-core-in-visual-studio/7669)

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**Author:** [@1111](https://discourse.numenta.org/u/1111)\
**Replies:** 7\
**Last updated:** [June 21, 2020, 1:53am UTC](https://discourse.numenta.org/t/debugging-htm-core-in-visual-studio/7669 "2020-06-21T01:53:18Z")

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Hello, everyone. I’m currently reading c++ code on visual studio 2019 to better understand htm.core. Previously (probably around August of 2019), I was able to debug helloSPTP.cpp in visual studio. But if I run startu…

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## [Does the new version nupic still support nta.utils and htmengine?](https://discourse.numenta.org/t/does-the-new-version-nupic-still-support-nta-utils-and-htmengine/7643)

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**Author:** [@maizeng2008](https://discourse.numenta.org/u/maizeng2008)\
**Replies:** 2\
**Last updated:** [June 10, 2020, 12:17pm UTC](https://discourse.numenta.org/t/does-the-new-version-nupic-still-support-nta-utils-and-htmengine/7643 "2020-06-10T12:17:34Z")

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In HTM community repo, I saw the last commit for the numenta.app is like 3 years ago, does the newer version nupic still support nta.utils and htmengine?

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## [Htm.core and C#](https://discourse.numenta.org/t/htm-core-and-c/7641)

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**Author:** [@indy](https://discourse.numenta.org/u/indy)\
**Replies:** 0\
**Last updated:** [June 8, 2020, 10:24am UTC](https://discourse.numenta.org/t/htm-core-and-c/7641 "2020-06-08T10:24:12Z")

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I’ve started to created some examples that show how to consume the htm.core NetworkAPI REST Interface using C# and .NET Core 3.1. Here’s the link to the GitHub repository: https://github.com/indy-3rdman/htm.core-csharp-…

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## [Distributed HTM?](https://discourse.numenta.org/t/distributed-htm/7323)

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**Author:** [@Asterion](https://discourse.numenta.org/u/Asterion)\
**Replies:** 13\
**Last updated:** [June 1, 2020, 6:11pm UTC](https://discourse.numenta.org/t/distributed-htm/7323 "2020-06-01T18:11:45Z")

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I have dabbled with Thesbian, which is an agent based environment in Python. I did wonder about how nupic HTM might be distributed and the use of agent based concurrency made some sense? I note an amalgam of nupic an…

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## [SDR Classifier without TM](https://discourse.numenta.org/t/sdr-classifier-without-tm/7207)

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**Author:** [@Sergey](https://discourse.numenta.org/u/Sergey)\
**Replies:** 7\
**Last updated:** [May 23, 2020, 6:11am UTC](https://discourse.numenta.org/t/sdr-classifier-without-tm/7207 "2020-05-23T06:11:01Z")

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Hi! I used htm.core. I want to classify without Temporal Memory. Can I put the output of SP to the input of the Classifier? If yes, how can I do it? @breznak, @David\_Keeney maybe you can help me? Thanks a lot!

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## [Htm.core how do you know that a column is active?](https://discourse.numenta.org/t/htm-core-how-do-you-know-that-a-column-is-active/7543)

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**Author:** [@Sebastian\_Ederer](https://discourse.numenta.org/u/Sebastian_Ederer)\
**Replies:** 2\
**Last updated:** [May 16, 2020, 12:38pm UTC](https://discourse.numenta.org/t/htm-core-how-do-you-know-that-a-column-is-active/7543 "2020-05-16T12:38:52Z")

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Hello, I’m currently struggling with the groupBy method in the GorupBy.hpp file of the htm.core implementation. But actually the reason I wanto to know that is that I don’t really get how the following code in the Tempo…

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## [Geospatial Coordinate Encoder for htm.core?](https://discourse.numenta.org/t/geospatial-coordinate-encoder-for-htm-core/7378)

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**Author:** [@barnettjv](https://discourse.numenta.org/u/barnettjv)\
**Replies:** 7\
**Last updated:** [May 1, 2020, 4:03pm UTC](https://discourse.numenta.org/t/geospatial-coordinate-encoder-for-htm-core/7378 "2020-05-01T16:03:08Z")

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Matt, do we have the GeospatialCoordinateEncoder for the htm.core cpp version (Algorithms API)?

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## [Htm.core-jupyter docker image](https://discourse.numenta.org/t/htm-core-jupyter-docker-image/7179)

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**Author:** [@indy](https://discourse.numenta.org/u/indy)\
**Replies:** 1\
**Last updated:** [April 28, 2020, 3:48pm UTC](https://discourse.numenta.org/t/htm-core-jupyter-docker-image/7179 "2020-04-28T15:48:32Z")

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Hello HTM enthusiasts! I have just published some additional information about using my htm.core-jupyter docker image together with the Python 3 examples that come with htm.core. Hope you will find it useful. Cheers!

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## [Can't install htm.core on linux](https://discourse.numenta.org/t/cant-install-htm-core-on-linux/7443)

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**Author:** [@ac\_violet](https://discourse.numenta.org/u/ac_violet)\
**Replies:** 13\
**Last updated:** [April 20, 2020, 11:36am UTC](https://discourse.numenta.org/t/cant-install-htm-core-on-linux/7443 "2020-04-20T11:36:18Z")

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Background Hi guys, I’m a new HTM learner and need some help. I’m intended to install htm.core on Ubuntu 16.04.6 LTS (GNU/Linux 4.4.0-142-generic x86\_64). And I tried install and failed. It shows that I have met all th…

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