k-NN recommendation

mxu777

I am new to the platform and trying to develop a process to decode n-item "item k-NN" recommendation result so the real user and product recommendation information can be retrieved.  The issue I have is that I do not know how to develop a "mapping table" around the model which uses "Item k-NN" model directly linked to "Apply Model" (for recommendation).  the information is encoded.  Does anyone can teach me how this can be done in terms of operator and parameters?  I appreciate it greatly. 

mxu777

it seems that n-item k-NN for recommendation is unhashable, any attempt to align the data will not work.  B