7. The system of claim 4 , wherein the marginal count component computes a total number of candidate terms in the subset of documents.
4. The system of claim 1 , wherein the probability computation component further comprises: a document-term matrix formation component that forms the document-term matrix based at least in part on identified candidate terms and the subset of documents; and a marginal count component that computes marginal counts of the document-term matrix, the marginal counts provided as probability values by the probability computation component.