Banking industry
1. A new method for solving fuzzy linear fractional programming problem with new ranking function

S. Kumar-Das

Volume 8, Issue 4 , Autumn 2019, , Pages 384-393

http://dx.doi.org/10.22105/riej.2020.220850.1123

Abstract
  Because of uncertainty in the real life applications, reaching to the optimal solution is always time consuming and even sometimes impossible. In order to overcome these limitations the fuzzy set theory is introduced to handle it but not only incomplete information but also indeterminate and inconsistent ...  Read More

Game theory
2. On solving two-person zero-sum fuzzy matrix games via linear programming approach

H. A. Khalifa

Volume 8, Issue 1 , Spring 2019, , Pages 17-27

http://dx.doi.org/10.22105/riej.2019.170067.1075

Abstract
  In this paper, a two-person zero-sum matrix game with fuzzy numbers payoff is introduced. Using the fuzzy number comparison introduced by Rouben's method (1991), the fuzzy payoff is converted into the corresponding deterministic payoff. Then, for each player, a linear programming problem is formulated. ...  Read More