We consider three mixture models which respectively capture structural rel-
evance, message relevance, and both structural and message relevance. Since
the results of query processing are not always correct, we add to each model a
back-o relevance measurement R(Qt;Gt) which measures the relevance of all
the words in the query to all the words in a candidate infographic. In addition,
we include a baseline model that treats the words in the graphic and the words
in the query as two bags of words and measures their relevance to one another.