Optimizing Biodiesel Production from Rice Bran Using Artificial Intelligence Approaches Min-Yuan Cheng Department of Construction Engineering, National Taiwan University of Science and Technology #43, Sec. 4, Keelung Rd., Taipei, Taiwan, R.O.C. 106 Tel: +886-2-27336596 E-mail: myc@mail.ntust.edu.tw Doddy Prayogo (Corresponding author) Department of Construction Engineering, National Taiwan University of Science and Technology #43, Sec. 4, Keelung Rd., Taipei, Taiwan, R.O.C. 106 Tel: +886-975962004 E-mail: doddyprayogo@ymail.com