Volume 55 (2023)
Volume 54 (2022)
Volume 53 (2021)
Volume 52 (2020)
Volume 51 (2019)
Volume 50 (2018)
Volume 49 (2017)
Volume 48 (2016)
Volume 47 (2016)
Volume 46 (2015)
Volume 45 (2014)
Volume 44 (2013)
Volume 43 (2009)
Volume 42 (2008)
Volume 41 (2007)
Comparison of solutions resulted from direct problems formulated as FRE

Amin Ghodousian; Sara Zal

Volume 54, Issue 1 , June 2022, , Pages 73-87

https://doi.org/10.22059/jac.2022.88038

Abstract
  In this paper, we investigate direct solution of FRE and compare their results with expected real consequences. We give an applied example formulated by a FRE problem and show that FRE defined by maximum t-conorm and an arbitrary t-norm can yield different interpretations for our example. A necessary ...  Read More

Linear optimization constrained by fuzzy inequalities defined by Max-Min averaging operator

A. Ghodousian; Sara Falahatkar

Volume 52, Issue 2 , December 2020, , Pages 13-28

https://doi.org/10.22059/jac.2020.79080

Abstract
  In this paper, optimization of a linear objective function with fuzzy relational inequality constraints is investigated whereby the feasible region is formed as the intersection of two inequality fuzzy systems and \textquotedblleft Fuzzy Max-Min\textquotedblright \ averaging operator is considered as ...  Read More

LP Problems on the max - “Fuzzy Or” inequalities systems

A. Ghodousian; Parmida Mirhashemi

Volume 52, Issue 2 , December 2020, , Pages 85-98

https://doi.org/10.22059/jac.2020.79249

Abstract
  In this paper, optimization of a linear objective function with fuzzy relational inequality constraints is investigated whereby the feasible region is formed as the intersection of two inequality fuzzy systems and “Fuzzy Or” operator is considered as fuzzy composition. It is shown that a ...  Read More

Max-Min averaging operator: fuzzy inequality systems and resolution

A. Ghodousian; Tarane Azarnejad; Farnood Samie Yousefi

Volume 51, Issue 1 , June 2019, , Pages 55-70

https://doi.org/10.22059/jac.2019.71296

Abstract
   Minimum and maximum operators are two well-known t-norm and s-norm used frequently in fuzzy systems. In this paper, two different types of fuzzy inequalities are simultaneously studied where the convex combination of minimum and maximum operators is applied as the fuzzy relational composition. ...  Read More

Linear programming on SS-fuzzy inequality constrained problems

Amin Ghodousian; shahrzad oveisi

Volume 50, issue 2 , December 2018, , Pages 13-36

https://doi.org/10.22059/jac.2018.69466

Abstract
  In this paper, a linear optimization problem is investigated whose constraints are defined with fuzzy relational inequality. These constraints are formed as the intersection of two inequality fuzzy systems and Schweizer-Sklar family of t-norms. Schweizer-Sklar family of t-norms is a parametric family ...  Read More

LP problems constrained with D-FRIs

A. Ghodousian; M. Jafarpour

Volume 50, issue 2 , December 2018, , Pages 59-79

https://doi.org/10.22059/jac.2018.69778

Abstract
  In this paper, optimization of a linear objective function with fuzzy relational inequality constraints is investigated where the feasible region is formed as the intersection of two inequality fuzzy systems and Dombi family of t-norms is considered as fuzzy composition. Dombi family of t-norms includes ...  Read More

Linear optimization on the intersection of two fuzzy relational inequalities defined with Yager family of t-norms

Amin Ghodousian; Reza Zarghani

Volume 49, Issue 1 , June 2017, , Pages 55-82

https://doi.org/10.22059/jac.2017.7981

Abstract
  In this paper, optimization of a linear objective function with fuzzy relational inequality constraints is investigated where the feasible region is formed as the intersection of two inequality fuzzy systems and Yager family of t-norms is considered as fuzzy composition. Yager family of t-norms is a ...  Read More

Linear optimization on Hamacher-fuzzy relational inequalities

Amin Ghodousian; Mohammadsadegh Nouri

Volume 49, Issue 1 , June 2017, , Pages 115-150

https://doi.org/10.22059/jac.2017.7988

Abstract
  In this paper, optimization of a linear objective function with fuzzy relational inequality constraints is investigated where the feasible region is formed as the intersection of two inequality fuzzy systems and Hamacher family of t-norms is considered as fuzzy composition. Hamacher family of t-norms ...  Read More