Let the general distributional meaning of the word w be w. Their model computes a different vector w s that represents the specific distributional meaning of w with respect to s, i.e.
: In general, this operator gives different vectors for each word w i in the sequence The model of Erk and Padó (2008) was designed to disambiguate the distributional meaning of a word w in the context of the sequence s. substituting the word w with the semantic head h of s, allows to compute the distributional meaning of sequence s as shaped by the word that is governing the sequence (c.f.