Jérémy Besson Céline Robardet Luc De Raedt Jean-François Boulicaut Mining Bi-sets in Numerical Data. 11-23 2006 conf/kdid/2006 KDID http://dx.doi.org/10.1007/978-3-540-75549-4_2 db/conf/kdid/kdid2006.html#BessonRRB06