Arianna Gallo Pauli Miettinen Heikki Mannila Finding Subgroups having Several Descriptions: Algorithms for Redescription Mining. 334-345 2008 SDM http://www.siam.org/proceedings/datamining/2008/dm08_30_Miettinen.pdf conf/sdm/2008 db/conf/sdm/sdm2008.html#GalloMM08