16. The computer readable storage medium of claim 13 , wherein refining is based upon, at least in part, one or more features vectors.
16. The computer readable storage medium of claim 13 , wherein refining is based upon, at least in part, one or more features vectors. 17. The computer readable storage medium of claim 16 , wherein refining includes, at least in part, calculating a score for one or more potential refinement sources.