Davood Rafiei, University of Alberta (IMAGE) University of Alberta Caption Davood Rafiei is a professor in the Department of Computing Sciences and expert in big data and information management. Credit John Ulan Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.