SP / TM connectivity questions

[life_happy]

@gmirey

To one from a subset of those which were active at previous step, when it is time for this cell to “predict” that it will fire next. This works because activations are sparse, and a subset of a sparse vector is sufficient to identify another sparse vector with huge probability. So… in effect, only those synapses are required to be remembered for the TM to learn a sequence of events.
Connecting all of them would be self defeating. For TM and… for brains.

thank you @gmirey, i can understand that in the neocortex theory . But in the NUPIC, i mean in programming algorithm, it has to be defined clearly. So how can NUPIC choose the cells to make synapses to ?? ( random or near cells or …?) do you know that ? pls show me. thank you.