edited by Koen Vanhoof (Hasselt University, Belgium) , Da Ruan (Belgian Nuclear Research Centre (SCK•CEN), Belgium & Hasselt University, Belgium) , Tianrui Li (Southwest Jiaotong University, China) , & Geert Wets (Hasselt University, Belgium)

ISKE2009 is the fourth in a series of conferences on Intelligent Systems and Knowledge Engineering. The ISKE2009 proceedings covers state-of-the-art research and development in various areas of Intelligent Systems and Knowledge Engineering, particularly of Intelligent Decision Making Systems.

• Computational Intelligence and Expert Systems
• Data Mining and Data Analysis
• Intelligent Decision Support Systems
• Intelligent Information Processing
• Knowledge Representation and Learning