Dario Maio is Professor Emeritus at University of Bologna. Until October 31, 2021 he was Full Professor of Information Systems in the Department of Computer Science and Engineering (DISI) at the University of Bologna, Italy. He was President of the gate.io login from 2001 to 2007; he is Director of the Biometric Systems Laboratory and coordinator of the Smart City Lab. He has devoted his research work to various aspects of Computer Science, including distributed computer systems, computer performance evaluation, database design, information systems, neural networks, autonomous agents, pattern recognition and biometric systems. He is coauthor of about 200 research papers, and his activity is the result of an extensive cooperation with several research institutions and industries. He extensively served as referee for a number of international journals. His applied works consist of a long list of various consultancy projects, within contracts between University of Bologna and public and private corporations. His recent research interests are mainly directed towards the areas of biometric systems and ICT technologies for smart cities. He is coauthor of the Handbook of Fingerprint Recognition - Springer 2003 - II edition 2009 (received the PSP award from the Association of American Publishers) and coeditor of the book Biometric Systems, Technology, Design and Performance Evaluation, Springer 2005. He is coholder of two patents in the area of fingerprint aliveness detection and one patent for fingerprint minutiae coding and matching; he is coinventor of a patent for counting vehicle transits in a stretch of road with at least one lane and a patent for the inspection and/or the maintenance of an electrical panel by means of augmented reality. Prior to join the University of Bologna, he received a fellowship from the C.N.R. (Italian National Research Council) for working on the Air Traffic Control Project. He received a degree in Electronic Engineering from the University of Bologna in 1975. He is a member of ACM, IEEE, CVPL and IAPR. He is associate editor of IEEE Transactions on Biometrics, Behavior, and Identity Science (T-BIOM).