Two teaching methods can be used: {HEAD ~ back propagation} of {TAIL ~ weight calculation} that includes the local feedback and the crosstalk or more preferably a feed forward gradient decent which immediately follows the output computations and which also includes the local feedback and the crosstalk 
Two teaching methods can be used : { HEAD ~ back propagation } of { TAIL ~ weight calculation } that includes the local feedback and the crosstalk or more preferably a feed forward gradient decent which immediately follows the output computations and which also includes the local feedback and the crosstalk
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH