Gregory Piatetsky-Shapiro Robert Grossman Chabane Djeraba Ronen Feldman Lise Getoor Mohammed Javeed Zaki Is there a grand challenge or X-prize for data mining? 954-956 2006 conf/kdd/2006 KDD http://doi.acm.org/10.1145/1150402.1150535 db/conf/kdd/kdd2006.html#Piatetsky-ShapiroGDFGZ06