Specificity Analysis is the name of a
tool that allows us to check the lexical units (i.e. words, lemmas
or categories) and the elementary contexts (i.e. sentences or
paragraphs) which are typical in a text or a corpus subset defined
by a categorical variable.
The 'typical' lexical units, defined for over-using or
under-using, are detected by means of the chi-square or the test
The 'typical' elementary contexts are detected by
computing and summing the normalized TF-IDF values assigned to the words which each
sentence or paragraph consists of.