In: Zili Zhang; Jörg Siekmann (Hrsg.). Knowledge Science, Engeneering and Management. 2nd International Conference, Proceedings. International Conference on Knowledge Science, Engeneering and Management (KSEM-07), November 28-30, Melbourne, Australia, Pages 2-9, Lecture Notes in Computer Science (LNCS), Vol. 4798, ISBN 978-3-540-76718-3, Springer, 11/2007.