Program Committee We thank the members of ComplexRec 2019 program committee for their time and effort to provide timely and constructive reviews of the submitted papers. Panagiotis Adamopoulos Emory University Ludovico Boratto Eurecat Iván Cantador Universidad Autónoma de Madrid Pablo Castells Universidad Autónoma de Madrid Federica Cena Universita’ degli Studi di Torino Paolo Cremonesi Politecnico di Milano Marco de Gemmis University of Bari ’Aldo Moro’ Ernesto William De Luca Georg-Eckert-Institute for international Textbook Research Tommaso Di Noia Politecnico di Bari Peter Dolog Aalborg University Soude Fazeli Open University Juan M. Fernández-Luna Universidad de Granada Cristina Gena Universita’ degli Studi di Torino Frank Hopfgartner The University of Sheffield Juan F. Huete Universidad de Granada Jaap Kamps University of Amsterdam Babak Loni DPG Media AI Cataldo Musto University of Bari ’Aldo Moro’ Fedelucio Narducci University of Bari ’Aldo Moro’ Casper Petersen Sampension Oren Sar Shalom Intuit AI Markus Schedl Johannes Kepler University Nafiseh Shabib DNB 1