My research is mainly devoted to the design, analysis and experimentation of algorithms and data structures for storing, compressing, mining and retrieving information from Big Data. My research results received four US Patents (owned by Lucent, University of Pisa and Rutgers, Yahoo!, New York University) and some international awards: "Best Land Transportation Paper Award" from IEEE Vehicular Technology Society (1995); "EATCS Doctoral Dissertation Thesis Award" (1997); "Philip Morris Award on Science and Technology" (1997); "Research Capital award" from the University of Pisa (2002); Yahoo! faculty award (2007-2010); Working Capital Award (2010); Google research award (2010, 2012 and 2016); Bloomberg Data Science research grant (2017). Currently, I have three more patents pending: two in the USA (owned by Yahoo! and CatalogDNA), and one in Italy (owned by University of Pisa).