be- 5 Note that this interpretation has been disputed; e.g., it is argued in Levy and Goldberg (2014a) that (4.1) can be understood using only the classical connection between inner product and word similarity, using which the objective (4.1) is slightly improved to a different objective called 3COSMUL.
it also helps explain why lowdimensional semantic embeddings contain linear algebraic structure that allows solution of word analogies, as shown by Mikolov et al.