PNN how close it is to optimally closest embeddings vector

[Sandy4321]

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great idea for pnn (ann) ann.pdf and ann.py

only how close it is to optimally closest embeddings vector in your code you inly test few candidates or did your wrong - you do have special idea how to get close to really closest vector ?
this your idea At the start of each epoch, sort S in reverse order based on distance to nearest neighbors in T, obtained so far. make sense if vectors are strongly dependent