Candidate expression

An expression (57 passages, no note) of one to four words that the keyword discovery (3 passages, no note) kept because it recurs without a note: at least three occurrences in two distinct files, neither starting nor ending with a stopword, not made only of digits (4 passages, no note), not shorter than three characters (16 passages, no note), absent from the dictionary and from the rejected terms (4 passages, no note) of the lock. Each candidate (note: Candidate) is scored by its C-value (35 passages, no note) times its inverse document (note: Document) frequency; from inference.candidate_score, 4.0 by default, it yields W-TERM-UNDEFINED, and above the publication threshold it gets a keyword page. The candidates are listed under candidates.terms of the model with their score (note: Confidence), counts and contexts (note: Passage).