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A new approach for data editing and imputation

Delgado-Quintero, Sergio; Salazar-González, Juan-José - In: Mathematical Methods of Operations Research 68 (2008) 3, pp. 407-428

The editing-and-imputation problem concerns the question of finding errors in a record which does not satisfy a set of consistency rules. Once some potential errors have been localizated, it is also necessary to impute new values to the associated fields. The output dataset should consist of...

Persistent link: https://www.econbiz.de/10010999636

Sensitivity analysis for discrete optimal control problems

Marinković, Boban - In: Mathematical Methods of Operations Research 63 (2006) 3, pp. 513-524

We present local sensitivity analysis for discrete optimal control problems with varying endpoints in the case when the customary regularity of boundary conditions can be violated. We study the behavior of the optimal solutions subject to parametric perturbations of the problem. Copyright...

Persistent link: https://www.econbiz.de/10011000002

Boosting the Scalability of Farm-Level Models: Efficient Surrogate Modeling of Compositional Simulation Output

Troost, Christian; Parussis-Krech, Julia; Mejaíl, Matías - In: Computational Economics 62 (2022) 3, pp. 721-759

Surrogate modeling can overcome computational and data-privacy constraints of micro-scale economic models and support their incorporation into large-scale simulations and interactive simulation experiments. We compare four data-driven methods to reproduce the aggregated crop area response...

Persistent link: https://www.econbiz.de/10015125345

Analysis of the weighted Tchebycheff weight set decomposition for multiobjective discrete optimization problems

Helfrich, Stephan; Perini, Tyler; Halffmann, Pascal; … - In: Journal of Global Optimization 86 (2023) 2, pp. 417-440

Scalarization is a common technique to transform a multiobjective optimization problem into a scalar-valued optimization problem. This article deals with the weighted Tchebycheff scalarization applied to multiobjective discrete optimization problems. This scalarization consists of minimizing the...

Persistent link: https://www.econbiz.de/10015188336

Multi-site production planning in hybrid make-to-stock/make-toorder production environment

Rafiei, Hamed; Rabbani, Masoud; Kokabi, Reza - In: Journal of Industrial Engineering International 10 (2014), pp. 1-9

the developed mathematical model, a genetic algorithm is developed upon which numerical experiments are reported in order …

Persistent link: https://www.econbiz.de/10011640813

Maximizing the nurses' preferences in nurse scheduling problem: Mathematical modeling and a meta-heuristic algorithm

Jafari, Hamed; Salmasi, Nasser - In: Journal of Industrial Engineering International 11 (2015), pp. 439-458

-heuristic algorithm based on simulated annealing (SA) is applied to heuristically solve the problem in a reasonable time. An initial … feasible solution generator and several novel neighborhood structures are applied to enhance performance of the SA algorithm … algorithm. The results of computational experiments indicate that the applied SA algorithm provides solutions with average …

Persistent link: https://www.econbiz.de/10011640855

Public policies for rural poverty alleviation: The case of agricultural households in the Plateau Central area of Burkina Faso

Sanfo, Safiétou; Gérard, Françoise - In: Agricultural Systems 110 (2012) C, pp. 1-9

Are there any economic policies able to break the vicious circle of the poverty trap in rural areas of poor countries such as Burkina Faso? To help answer this question, a detailed analysis of production systems has been used to elaborate dynamic household models. A mathematical programming...

Persistent link: https://www.econbiz.de/10010576175

Price induced irrigation water saving: Unraveling conflicts and synergies between European agricultural and water policies for a Greek Water District

Kampas, Athanasios; Petsakos, Athanasios; Rozakis, Stelios - In: Agricultural Systems 113 (2012) C, pp. 28-38

The 2003 CAP reform considerably affects cropping patterns in European agriculture. At the same time the imperatives of the Water Framework Directive (WFD) are expected to modify irrigation decisions especially in Southern Europe where irrigated agriculture utilizes about 70–80% of total...

Persistent link: https://www.econbiz.de/10010580428

Stabilizer-based symmetry breaking constraints for mathematical programs

Liberti, Leo; Ostrowski, James - In: Journal of Global Optimization 60 (2014) 2, pp. 183-194

Mathematical programs whose formulation is symmetric often take a long time to solve using Branch-and-Bound type algorithms, because of the several symmetric optima. A simple technique used in these cases is to adjoin symmetry breaking constraints to the formulation before solving the problem....

Persistent link: https://www.econbiz.de/10010994019

Characterizations and applications of generalized invexity and monotonicity in Asplund spaces

Soleimani-damaneh, M. - In: TOP: An Official Journal of the Spanish Society of … 20 (2012) 3, pp. 592-613

In this paper, the concepts of invexity, monotonicity, and their generalizations in Asplund spaces are studied. Some characterizations for several kinds of generalized invexity and monotonicity concepts are given, using the properties of Mordukhovich limiting subdifferentials in Asplund spaces;...

Persistent link: https://www.econbiz.de/10010995339