“…Thus, iterative algorithms are used to find a solution close to the optimal one. Many studies have presented some efficient solution procedures to obtain the approximating decision rules for such problems (Bhattacharya, 2005;Chen, 2005;Ghezavati, Jabal-Ameli, & Makui, 2009;Hausman et al, 1998;Li & Kuo, 2008;Lin, Shie, & Tsai, 2009;Swaminathan & Tayur, 1999;Thomas, 1991).…”