Database Systems for Advanced Applications : 16th International Conference, DASFAA 2011, Hong Kong, China, April 22-25, 2011, Proceedings, Part I - Yu, Jeffrey Xu (Herausgeber); Kim, Myoung Ho (Herausgeber); Unland, Rainer (Herausgeber) (Information Systems and Applications, incl. Internet/Web, and HCI, 2011)