Ben Azvine Zhan Cui Detlef Nauck Basim A. Majeed 29 2006 conf/wecwis/2006 CEC/EEE http://doi.ieeecomputersociety.org/10.1109/CEC-EEE.2006.73 db/conf/wecwis/cec2006.html#AzvineCNM06