P n is the distribution used for drawing negative samples, chosen to be with α = 3/4 (Mikolov et al., 2013b;<cite> Salle et al., 2016)</cite> , and #(w) the unigram frequency of w. Two methods were defined for the minimization of eqs. (2) and (3): Mini-batch and Stochastic <cite>(Salle et al., 2016)</cite> .