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Optimal Solution of Multi-Choice Mathematical Programming Problem Using a New Technique
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作者 Tarek A. Khalil yashpal singh raghav N. Badra 《American Journal of Operations Research》 2016年第2期167-172,共6页
The study deals with the multi-choice mathematical programming problem, where the right hand side of the constraints is multi-choice in nature. However, the problem of multi-choice linear programming cannot be solved ... The study deals with the multi-choice mathematical programming problem, where the right hand side of the constraints is multi-choice in nature. However, the problem of multi-choice linear programming cannot be solved directly by standard linear or nonlinear programming techniques. The aim of this paper is to transform such problems to a standard mathematical linear programming problem. For each constraint, exactly one parameter value is selected out of a multiple number of parameter values. This process of selection can be established in different ways. In this paper, we present a new simple technique enabling us to handle such problem as a mixed integer linear programming problem and consequently solve them by using standard linear programming software. Our main aim depends on inserting a specific number of binary variables and using them to construct a linear combination which gives just one parameter among the multiple choice values for each choice of the values of the binary variables. A numerical example is presented to illustrate our analysis. 展开更多
关键词 Multi-Choice Mathematical Programming Transformation Technique OPTIMIZATION
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Allocation of Repairable and Replaceable Components for a System Availability Using Selective Maintenance with Probabilistic Maintenance Time Constraints 被引量:3
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作者 Irfan Ali Mohammed Faisal Khan +1 位作者 yashpal singh raghav Abdul Bari 《American Journal of Operations Research》 2011年第3期147-154,共8页
In this paper, we obtain optimum allocation of replaceable and repairable components in a system design. When repair and replace time are considered as random in the constraints. We convert probabilistic constraint in... In this paper, we obtain optimum allocation of replaceable and repairable components in a system design. When repair and replace time are considered as random in the constraints. We convert probabilistic constraint into an equivalent deterministic constraint by using chance constrained programming. We have used the selective maintenance policy to determine how many components to be replaced & repaired within the limited maintenance time interval and cost. A Numerical example is presented to illustrate the computational procedure and problem is solved by using LINGO Software. 展开更多
关键词 SELECTIVE Maintenance AVAILABILITY Optimization and ALLOCATION Chance’s CONSTRAINTS
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Allocation in Multivariate Stratified Surveys with Non-Linear Random Cost Function
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作者 Mohammed Faisal Khan Irfan Ali +1 位作者 yashpal singh raghav Abdul Bari 《American Journal of Operations Research》 2012年第1期100-105,共6页
In this paper, we consider an allocation problem in multivariate surveys with non-linear costs of enumeration as a problem of non-linear stochastic programming with multiple objective functions. The solution is obtain... In this paper, we consider an allocation problem in multivariate surveys with non-linear costs of enumeration as a problem of non-linear stochastic programming with multiple objective functions. The solution is obtained through Chance Constrained programming. A different formulation of the problem is also presented in which the non-linear cost function is minimised under the precision constraints on estimates of various characters. The solution is then obtained by using Modified E-model. A numerical example is solved for both the formulations. 展开更多
关键词 STRATIFIED Survey Optimum ALLOCATION COMPROMISE ALLOCATION Stochastic Programming CHANCE Constraints Modified E-MODEL
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