“…However, most of the association rule mining methods did not consider the ambiguity of data in the process of data pre-processing stage that cannot reflect the representative of data and human's cognition completely and truly (Kuok et al, 1998;Kaya & Alhajj, 2003;Weng, 2011;Matthews et al, 2013;Wang et al, 2015). Therefore, converting the data into linguistic data by using fuzzy sets has become an important research direction for the data mining application (Ashish & Vikramkumar, 2010;Weng, 2011;Sowan et al, 2013;Jin et al, 2014;Arafah & Mukhlash, 2015;Palacios et al, 2015;Khatib et al, 2015).…”