An Excellent Guest Professor in Hasselt University

Prof. Da Ruan died completely unexpected on July 31 2011. Since September 2005, Da Ruan was a guest professor at IMOB. As a guest professor he was involved in several teaching and research activities. As part of his teaching activities he lectured on Knowledge-Based Systems and Computational Intelligence. As part of his research activities he worked closely with several IMOB researchers where his outstanding expertise regarding fuzzy sets and multi criteria analysis proved valuable w.r.t. their doctoral research.