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.
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. 5. The system of claim 4 , wherein for each candidate term, the marginal count component computes the number of times the particular candidate term occurs in the subset of documents.