Ronen Feldman Moshe Fresko Yakkov Kinar Yehuda Lindell Orly Liphstat Martin Rajman Yonatan Schler Oren Zamir Text Mining at the Term Level. 65-73 1998 conf/pkdd/1998 PKDD db/conf/pkdd/pkdd98.html#FeldmanFKLLRSZ98