In: Andreas König; Andreas Dengel; Knut Hinkelmann; Koichi Kise; Robert J. Howlett; Lakhmi C. Jain (Hrsg.). Knowledge-Based and Intelligent Information and Engineering Systems - 15th International Conference, KES 2011, Kaiserslautern, Germany, September 12-14, 2011, Proceedings, Part I. International Conference on Knowledge-Based and Intelligent Information & Engineering Systems (KES-11), September 12-14, Kaiserslautern, Germany, Pages 397-406, ISBN 978-3-642-23850-5, Springer, 2011.