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- Abbas Parchami, Mashaallah Mashinchi, Ali Reza Yavari, Hamid Reza Maleki, Shahid Bahonar
- 2006

Most of the traditional methods for assessing the capability of manufacturing processes are dealing with crisp quality. In this paper we discuss the fuzzy quality and introduce fuzzy process capability indices, where instead of precise quality we have two membership functions for specification limits. These indices are necessary when the specification… (More)

- Abbas Parchami, Mashaallah Mashinchi, Hamid Reza Maleki
- Journal of Intelligent and Fuzzy Systems
- 2006

- H. Hassanpour, Hamid Reza Maleki, M. A. Yaghoobi
- APJOR
- 2009

- Hamid Reza Maleki, M. Tata, Mashaallah Mashinchi
- Fuzzy Sets and Systems
- 2000

- R. Parvathi, C. Malathi, H. R. Maleki, E. E. Kerre, A. Kumar, J. Kaur
- 2016

This paper deals with Intuitionistic Fuzzy Linear Programming Problems(IFLPPs) using Symmetric Trapezoidal Intuitionistic Fuzzy Numbers(STIFNs) and the arithmetic operations defined on them. A special ranking function is presented in project environment to rank STIFN. An attempt has been made to solve the given IFLPP without converting them to crisp linear… (More)

- M. R. Safi, Hamid Reza Maleki, E. Zaeimazad
- FO & DM
- 2007

- Maryam Zangiabadi, Hamid Reza Maleki
- APJOR
- 2007

In the real-world optimization problems, coefficients of the objective function are not known precisely and can be interpreted as fuzzy numbers. In this paper we define the concepts of optimality for linear programming problems with fuzzy parameters (FLP). Then by using the concept of comparison of fuzzy numbers we transform FLP problem into a… (More)

Capability indices compare the actual performance of a manufacturing process to the desired performance. In practice these indices are estimated using sample data, often with quite small sample sizes. Thus, it is of interest to obtain confidence limits for actual capability index given a sample estimate. Most of the traditional methods for assessing the… (More)

In this paper first, we find a canonical symmetrical trape-zoidal(triangular) for the solution of the fuzzy linear system A˜x = ˜ b, where the elements in A and˜b are crisp and arbitrary fuzzy numbers, respectively. Then, a model for fuzzy linear programming problem with fuzzy variables (FLPFV), in which, the right hand side of constraints are arbitrary… (More)