Volume 23 (2026)
Volume 22 (2025)
Volume 21 (2024)
Volume 20 (2023)
Volume 19 (2022)
Volume 18 (2021)
Volume 17 (2020)
Volume 16 (2019)
Volume 15 (2018)
Volume 14 (2017)
Volume 13 (2016)
Volume 12 (2015)
Volume 11 (2014)
Volume 10 (2013)
Volume 9 (2012)
Volume 7 (2010)
Volume 6 (2009)
Volume 5 (2008)
Volume 4 (2007)
Volume 3 (2006)
Volume 2 (2005)
Volume 1 (2004)
SOME PROPERTIES FOR FUZZY CHANCE CONSTRAINED PROGRAMMING

Xiaohu Yang

Volume 8, Issue 4 , September and October 2011, Pages 1-8

Abstract
  Convexity theory and duality theory are important issues in math- ematical programming. Within the framework of credibility theory, this paper rst introduces the concept of convex fuzzy variables and some basic criteria. Furthermore, a convexity theorem for fuzzy chance constrained programming is ...  Read More

ALGORITHMS FOR BIOBJECTIVE SHORTEST PATH PROBLEMS IN FUZZY NETWORKS

Iraj Mahdavi; Nezam Mahdavi-Amiri; Shahrbanoo Nejati

Volume 8, Issue 4 , September and October 2011, Pages 9-37

Abstract
  We consider biobjective shortest path problems in networks with fuzzy arc lengths. Considering the available studies for single objective shortest path problems in fuzzy networks, using a distance function for comparison of fuzzy numbers, we propose three approaches for solving the biobjective prob- lems. ...  Read More

A FUZZY MINIMUM RISK MODEL FOR THE RAILWAY TRANSPORTATION PLANNING PROBLEM

Lixing Yang; Xiang Li; Ziyou Gao; Keping Li

Volume 8, Issue 4 , September and October 2011, Pages 39-60

Abstract
  The railway transportation planning under the fuzzy environment is investigated in this paper. As a main result, a new modeling method, called minimum risk chance-constrained model, is presented based on the credibility measure. For the convenience ofs olving the mathematical model, the crisp equivalents ...  Read More

MEAN-ABSOLUTE DEVIATION PORTFOLIO SELECTION MODEL WITH FUZZY RETURNS

Zhongfeng Qin; Meilin Wen; Changchao Gu

Volume 8, Issue 4 , September and October 2011, Pages 61-75

Abstract
  In this paper, we consider portfolio selection problem in which security returns are regarded as fuzzy variables rather than random variables. We first introduce a concept of absolute deviation for fuzzy variables and prove some useful properties, which imply that absolute deviation may be used to ...  Read More

FUZZY TRAIN ENERGY CONSUMPTION MINIMIZATION MODEL AND ALGORITHM

Xiang Li; Dan Ralescu; Tao Tang

Volume 8, Issue 4 , September and October 2011, Pages 77-91

Abstract
  Train energy saving problem investigates how to control train's velocity such that the quantity of energy consumption is minimized and some system constraints are satis ed. On the assumption that the train's weights on different links are estimated by fuzzy variables when making the train scheduling ...  Read More

FLUENCE MAP OPTIMIZATION IN INTENSITY MODULATED RADIATION THERAPY FOR FUZZY TARGET DOSE

Alireza Fakharzadeh Jahromi; Omolbanin Bozorg; Hamidreza Maleki; Mohamad Amin Mosleh-Shirazi

Volume 8, Issue 4 , September and October 2011, Pages 93-105

Abstract
  Although many methods exist for intensity modulated radiotherapy (IMRT) fluence map optimization for crisp data, based on clinical practice, some of the involved parameters are fuzzy. In this paper, the best fluence maps for an IMRT procedure were identifed as a solution of an optimization problem with ...  Read More

COALITIONAL GAME WITH FUZZY PAYOFFS AND CREDIBILISTIC SHAPLEY VALUE

Jinwu Gao; Q. Zhang; P. Shen

Volume 8, Issue 4 , September and October 2011, Pages 107-117

Abstract
  Coalitional game deals with situations that involve cooperations among players, and there are different solution concepts such as the core,the Shapley value and the kernel. In many situations, there is no way to predict the payoff functions except for the expert experiencesand subjective intuitions, ...  Read More