Ahmed Sultan Al-Hegami Vasudha Bhatnagar Naveen Kumar Novelty Framework for Knowledge Discovery in Databases. 48-57 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3181&spage=48 2004 conf/dawak/2004 DaWaK db/conf/dawak/dawak2004.html#Al-HegamiBK04