In this paper, we process each user query Q using the learned models from
our previous work [19, 20] in order to 1) extract all of the query components
that convey structural information, Qstruct = fQx;Qy;Qng, and 2) identify the
requisite message information that should be conveyed by the desired graphic
Qmsg = fQIM;Qfxg. In addition, we form a bag of words Qt consisting of all
words in query Q.