How about Using the PCA to Analyze Changes in Learning Styles? - Federico Scaccia; Carlo Giovannella (ICWL, 2012)

A PCA Study of Student Performance Indicators in a Web 2.0-Based Learning Environment. - Carlo Giovannella; Federico Scaccia; Elvira Popescu (ICALT, 2013)

Technology-Enhanced "Trusted" Participatory Grading. - Carlo Giovannella; Federico Scaccia (ICALT, 2014)

Smart City Analytics: state of the art and future perspectives. - Carlo Giovannella; Mihai Dascalu; Federico Scaccia (IxD&A, 2014)