Lecture Notes in Artificial Intelligence Edited by J. G. Carbonell and J. Siekmann Subseries of Lecture Notes in Computer Science 4429 Ruqian Lu Jörg H. Siekmann Carsten Ullrich (Eds.) Cognitive Systems Joint Chinese-German Workshop Shanghai, China, March 7-11, 2005 Revised Selected Papers 13 Series Editors Jaime G. Carbonell, Carnegie Mellon University, Pittsburgh, PA, USA Jörg Siekmann, University of Saarland, Saarbrücken, Germany Volume Editors Ruqian Lu Chinese Academy of Sciences Institute of Mathematics Beijing, China E-mail:
[email protected] Jörg H. Siekmann Universität des Saarlandes and German Research Center for Artificial Intelligence (DFKI) 66123 Saarbrücken, Germany E-mail:
[email protected] Carsten Ullrich German Research Center for Artificial Intelligence (DFKI