1990: Laurea degree (cum laude) in Mathematics. 1994: PhD in Computer Science (1994) at the University "La Sapienza" of Rome. 1996--1998: Assistant Professor at "La Sapienza". 1998-2002: Associate Professor at the University "Tor Vergata" of Rome. 2002-..: Full Professor at the same university. His main research activity focuses on Algorithms and Complexity Theory with special interest in Randomized and/or Distributed Models. He published more than 50 papers in the most important international journals and conferences of the area. He has visited several universities, such as UCSD of San Diego, University of Geneva (where it has been Assistant Professor for 2 years), and the French Research Institute INRIA (Sophia Antipolis). He has been Invited Lecturer in: - Fourth Winter School on Telecommunications of INRIA Sophia Antipolis 2001 (ECOTEL'01); - Scuola Nazionale dei Dottorandi di Informatica - Bertinoro 2001 (SNDIS01) - Int. Spring School ARACNE Spring School on Approximation Algorithms for Scheduling and Telecommunication Kiel, Germany, March, 2001 - Int. Workshop DYNAMO: Dynamic Communication Networks: Foundations and Algorithms, Arcachon, 2008. He participates in several national and international research projects and he has been the local coordinator of the International INTAS project "Boolean Functions: Complexity; Applications" and the CEE - RTN Project "Approximation and Randomization in Communication Networks (ARACNE)" (2000-2004); local coordinator of CE - Global Computing Project "CRESCCO" (2002-2004). He was Workpackage Leader in the CE Project AEOLUS (2005-2009). He has been Unit Leader of some national COFIN Project, the last one ''COGENT'' still active. He has been member of the Program and/or Organizing Committees of several international conferences on algorithm theory such as RANDOM/APPROX'98, ARACNE'00, ACM DIALM'01, CIAC'03, WMAN'03/04/05. ALGOSENSORS06/'07, The 4th IEEE/ACM DISTRIBUTED COMPUTING IN SENSOR SYSTEMS 08, 10th/11th/12th ACM-IEEE International Symposium on Modeling, Analysis and Simulation of Wireless and Mobile Systems (MSWIM'07/08/09). 17th International Colloquium SIROCCO'10. The 7th ACM-SIGACT International FOMC'11, 8th ACM FOMC 2012, 10th Workshop on Approximation and Online Algorithms (WAOA 2012), and 37th International Symposium on Mathematical Foundations of Computer Science MFCS 2012, the 41st International Colloquium on Automata, Languages, and Programming (ICALP'14), and IEEE IPDPS 2015.