gmirey:
and … an hexagonal lattice for minicolumns and by extension, columns. This brings some complexity and would impact performance somewhat… and I know current hype around hex is mostly due to grid-cell, which is not meant to relate to a topology of the cortex itself, but rather on locations of the environment
You don’t have to put any “extra” effort into forming grid cells. Lateral mutual excitation is sufficient. Inhibition (like your fixed tile suggestion) can be helpful.
Or at least some wild conjectures to provoke thought! This post assumes that you are familiar with basic HTM theory and are conversant with the concepts of SDRs and HTM minicolumns.
May I be so bold:
[HTM%20and%20GRIDS]
First - let’s be clear what I am and am not talking about.
This is about cells that work by forming regular hexagonal grid structures and are not necessarily the same thing as the “grid cells” that are coding some spatial aspect of the surrounding environment.
These grid-fo…
If you carry on doing your own thing in C++ you might want to look at this:
In an earlier post, I mentioned that I have been trying to work out how to form the cortical.io retina using HTMs.
This effort has led me to work through what operations are being performed by HTMs and how to compute with these primitives. The basic task of the conversion between a stream of data and a spatial distribution of the semantically related SDRs requires that the somewhere in the computations there is a sense of location in the cell bodies.
I also wanted to work within the restrictio…
1 Like