نتایج جستجو برای: possiblistic programming

تعداد نتایج: 329709  

Journal: :international journal of industrial engineering and productional research- 0
yahia zare mehrjerdi department of industrial engineering, yazd university, yazd, iran,

an interactive heuristic approach can offer a practical solution to the problem of linear integer programming (lip) by combining an optimization technique with the decision maker’s (dm) judgment and technical supervision. this is made possible using the concept of bicriterion linear programming (blp) problem in an integer environment. this model proposes two bicriterion linear programs for iden...

Journal: :iranian journal of fuzzy systems 2009
nikbakhsh javadian yashar maali nezam mahdavi-amiri

we present a new model and a new approach for solving fuzzylinear programming (flp) problems with various utilities for the satisfactionof the fuzzy constraints. the model, constructed as a multi-objective linearprogramming problem, provides flexibility for the decision maker (dm), andallows for the assignment of distinct weights to the constraints and the objectivefunction. the desired solutio...

Journal: :international journal of industrial engineering and productional research- 0
seyed jafar sadjadi dept. industrial engineering, iran university of science and technology, tehran, iran amin alinezhad esboei dept. industrial engineering, iran university of science and technology, tehran, iran

the problem of staff scheduling at a truck hub for loading and stripping of the trucks is an important and difficult problem to optimize the labor efficiency and cost. the trucks enter the hub at different hours a day, in different known time schedules and operating hours. in this paper, we propose a goal programming to maximize the labor efficiency via minimizing the allocation cost. the propo...

Journal: :ژورنال بین المللی پژوهش عملیاتی 0
m. saraj s. sadeghi

this paper presents a fuzzy goal programming (fgp) methodology for solving bi-level quadratic programming (blqp) problems. in the fgp model formulation, firstly the objectives are transformed into fuzzy goals (membership functions) by means of assigning an aspiration level to each of them, and suitable membership function is defined for each objectives, and also the membership functions for vec...

Journal: :مدیریت صنعتی 0
مجید اسماعیلیان استادیار گروه مدیریت، دانشکدۀ علوم اداری و اقتصاد، دانشگاه اصفهان، ایران هاجر بکران کارشناس‎ارشد مدیریت صنعتی، دانشکدۀ علوم اداری و اقتصاد، دانشگاه اصفهان، ایران

preventive maintenance scheduling is to perform a series of tasks that prevents or minimizes production breakdowns and improves the reliability. mathematical models have been developed to solve the preventive maintenance scheduling problem. there are several limitations in the prior work in this area of research. craft combinations are assumed to be given. the craft combination problem concerns...

Journal: :the modares journal of electrical engineering 2011
saeideh sadat sadidpour mohammad mahdi homayounpour mahdi fasanghari

in this paper, genetic programming is applied for quality improvement of noisy speech signal. therefore, a system including both spectral subtraction and genetic programming is implemented for speech enhancement. in the proposed method, first noise is reduced by spectral subtraction. in the next step, genetic programming trees are trained for more enhancement of noisy signal by mapping the sign...

Journal: :Journal of Mathematical Analysis and Applications 1969

Journal: :The Journal of the Australian Mathematical Society. Series B. Applied Mathematics 1980

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