“…These researches, however, concentrated on the design of the algorithms, yet discussion of ontology structure design and its benefit to data mining were not covered. Until recently, research on applying ontology to data mining was exploited by several studies such as, ontology-based induction of rules (Aronis et al, 1996;Taylor et al, 1997), ontology-based business understanding (Sharma & Osei-Bryson, 2009), ontologybased post-processing and explanation of association rules (Domingues & Rezende, 2005;Liao et al, 2009;Marinica et al, 2008;Svatek et al, 2005), ontology-supported selection of classification algorithms (Bernstein et al, 2005;Lin et al, 2006), ontology-guided new attributes generation from databases (Phillips & Buchanan, 2001), and ontology-based integration and preprocessing of data (Euler & Scholz, 2004;Perez-Rey et al, 2006).…”