The CLA whitepaper  describes the algorithm via pseudocode, and leaves some crucial details to comments about method implementations. We found it difficult to reproduce the algorithm due to these missing details [6, 7].
To be fair, Numenta does provide an open-source implementation of CLA called NUPIC , but it’s a little frustrating to have to piece together the details from the whitepaper and the code. I haven’t checked it all, but hopefully Fergal’s equations will provide a definitive reference.
Fergal is also working on an updated CLA whitepaper, currently hosted here .