Riccardo Guidotti received a PhD in Computer Science in 2017 with a thesis on Personal Data Analytics at University of Pisa where he is currently a post-doc researcher. He is also a member of the KDDLab, a joint research group with the Information Science and Technology Instituteof the National Research Council in Pisa. He won the IBM fellowship program and has been an intern in IBM Research Dublin, Ireland in 2015. His research interests are in personal data mining, clustering, explainable models, analysis of transactional data.

Anna Monreale is an assistant professor at the Computer Science Department of the University of Pisa and a member of the KDDLab, a joint research group with the Information Science and Technology Institute of the National Research Council in Pisa. She has been a visiting student at Department of Computer Science of the Stevens Institute of Technology (Hoboken, NewJersey, USA) (2010) and visiting researcher at Geomatics Engineering Department, University of New Brunswick, Canada (July 2014). Her research interests include big data analytics, social networks and the privacy issues raised in mining these kinds of social and human sensitive data.