His main research interests are in data mining and machine learning. He was a visiting researcher at the University of Bristol (U.K.) and at the JSI (SLO). He has published more than 140 papers in refereed journals and conferences. He is the unit coordinator of the projects MAESTRA and Vi-POC. He has served in the Program Committee of many conferences, including: IEEE ICDM, IJCAI, ECMLPKDD (also as area chair), SIAM SDM, ISMIS, PAKDD and DS. He is member of the editorial boards of: IJSNM, IJDSN, IJDATS and JAIS. He has been the program co-chair of five workshops and DS2016, the organizing committee chair of SEBD 2007, member of the editorial committee of ``Intelligenza Artificiale'' and member of the editorial board of the ECMLPKDD 2014 and 2015 journal tracks.