In: Andreas König; Andreas Dengel; Knut Hinkelmann; Koichi Kise; Robert J. Howlett; Lakhmi C. Jain (Hrsg.). Proceedings of the 15th International Conference on Knowledge-Based and Intelligent Information & Engineering Systems. International Conference on Knowledge-Based and Intelligent Information & Engineering Systems (KES-11), 15th, September 12-14, Kaiserslautern, Germany, Pages 430-439, Lecture Notes in Computer Science (LNCS), Vol. 6882, ISBN 978-3-642-23862-8, Springer, 2011.