DBKDA 2014 The Sixth International Conference on Advances in Databases, Knowledge, and Data Applications ISBN: 978-1-61208-334-6 April 20 - 24, 2014 Chamonix, France DBKDA 2014 Editors Friedrich Laux, Reutlingen University, Germany Andreas Schmidt, Karlsruhe University of Applied Sciences | Karlsruhe Institute of Technology, Germany Kiyoshi Nitta, Yahoo Japan Research, Japan Iztok Savnik, Jozef Stefan Institute and University of Primorska, Slovenia 1 / 173