Ordinal Optimization (by ho et al/ [1-2 Idea "Order"is much more robust and easier against noise than " value" 80/20 rule: easier to identify the tallest guy then their heights in a classroom Don' t insist on getting the best but be willing to settle for the good enough U Y.C. Ho, R.S. Sreenivas and P. Vakili. "Ordinal optimization of DEDS, Discrete event dynamic systems, 2(1): 61-88, 1992 2 Y. C. Ho. "An ordinal optimization approach to optimal control problems. " Automatica, 35(2): 331-338, 1999 Recent pioneering algorithm Optimal Computing-Budget Allocation(OCBA, by Chen et al. in 2000)Ordinal Optimization (by Ho et al. [1-2]) ◼ Idea ◼ “Order” is much more robust and easier against noise than “Value” ◼ 80/20 rule: easier to identify the tallest guy then their heights in a classroom ◼ Goal softening ◼ Don’t insist on getting the “Best” but be willing to settle for the “Good Enough” ◼ Recent pioneering algorithm ◼ Optimal Computing-Budget Allocation (OCBA, by Chen et al. in 2000) [1] [2]