24. The method as described in claim 23 , wherein the salience measure is a normalized clarity value, and wherein the normalized clarity value is generated by accounting for a size of a measured set.
24. The method as described in claim 23 , wherein the salience measure is a normalized clarity value, and wherein the normalized clarity value is generated by accounting for a size of a measured set. 25. The method as described in claim 24 wherein, for the set of documents S, the normalized clarity value is the number of standard deviations by which the clarity of S exceeds to expected value of the clarity of a set of documents of the same size as S.