This view allows us to assign a natural interpretation to some word vector operations.
the vector difference w i − w k is commonly used as a model for the relationship between words i and k. For a given context word j, we have The latter is an estimation of log P (i,j) P (i)P (j) − log P (k,j) P (k)P (j) = log P (j|i) P (j|k) .