understood through this so fq and FK our encoder networks with a query and key and your cue you have a dictionary of cues which is your memory bank of negatives and you have a momentum is a temperature parameter so initially you make the key encoder and the query encoder the same to start with and every time you load a mini batch you construct two different augmentations of it the query and the key and you fast forward the query in the key using the you get the embeddings using the query and key encoders and you