IBM T. J. Watson Research Center, Hawthorne, NY, USA.|IBM T. J. Watson Research Center, Hawthorne, NY, USA.|IBM T. J. Watson Research Center, Hawthorne, NY, USA.|IBM T. J. Watson Research Center, Hawthorne, NY, USA.|IBM T. J. Watson Research Center, Hawthorne, NY, USA.|IBM T. J. Watson Research Center, Hawthorne, NY, USA.