He got his Ph.D. in Computer Science at Universita. degli Studi Roma Tre (2007, Italy) and before joining ASU he had been a senior scientist at Qatar Computing Research Institute. His research is focused on systems that assist users in complex, necessary tasks and that scale to large datasets with efficient algorithms and distributed platforms. He has authored more than 50 publications, and his work has been recognized with two "Best of the Conference" citations (SIGMOD 2009, VLDB 2015) and with a best demo award at SIGMOD 2015. He has been a program committee member for several venues, such as SIGMOD, VLDB, ICDE, WSDM, and is group leader for SIGMOD 2016. He is associate editor for the ACM Journal of Data and Information Quality (JDIQ).