“…Other techniques are used by other authors such as grouping the items using dynamic programming (Odanaka and Tanaka, 1987), operational constraints (Cohen and Ernst, 1988), artificial intelligence (Yu, 2011), fuzzy AHP-DEA (Hadi-Vencheh and Mohamadghasemi, 2011), the rulebased inference system (Rezaei and Dowlatshahi, 2010), the weighted linear optimization (Zhou and Fan, 2007) (Hadi-Vencheh, 2010) (Ramanathan, 2006) (Ng, 2007), the Shannon entropy (Zheng et al, 2017), etc.…”