[PDF] Top 20 Pesqui. Oper. vol.37 número1

... The survey sought to identify the types of strategic decision problems most com- monly faced by managers, the tools they use to support these activities, and the steps usually taken with[r] ... See full document

... Hence, oral semi structured interviews were conducted with the two Partner-Managers of the company, the Development Manager and twelve people with different roles in the working teams (p[r] ... See full document

... (2015), using the Gini index as the dependent variable, found that the variable returns to scale (VRS) data envelopment analysis (DEA) score (Banker et al., 1984) is highly significant i[r] ... See full document

... Some examples of these works in chronological order, are: [32] studied the relation between the Sea Surface Temperature (SST) pattern over the Atlantic and the Pacific Oceans and the var[r] ... See full document

... This paper presents the evaluation of a daily inflow forecasting model using a tool that facili- tates the analysis of mathematical models for hydroelectric plants.. The model is based o[r] ... See full document

... The following decision variables were applied as parameter for the optimization: Lead Time, Transport Time, Total Emission, being these ones obtained in the simulation, in which each var[r] ... See full document

... It is observed a negative value for the estimator of the regression parameter related to the ex- change rate ( − 0. 2935 ) which implies that there is a significant decrease in the logar[r] ... See full document

... (2006) developed stochastic linear programming with a discrete distribution of demand and scenario trees for stochastic constraints to minimize the expected total cost of shortage and sc[r] ... See full document

... The objective of the comprehensive model is to minimize the sum of three costs: (a) the rent cost of the terminal building facility, which is a function of its area and layout; (b) the w[r] ... See full document

... For each instance, we first solved the linear relaxation of the original problem, and applied the rounding heuristic described in 5.3 We then attempted to solve the problem using a Bra[r] ... See full document

... O presente número da revista Pesquisa Operacional é uma edição especial sobre Otimização Combinatória e suas Aplicações, em homenagem ao Professor Maculan e, em 2004, teremos uma ediçã[r] ... See full document

... In fact, one can say that basically in almost every Brazilian University where there is any activity in combinatorial optimization or operations research, there is some faculty member [r] ... See full document

... The present paper corrects a small point in the proof of the convergence given by Alizadeh (1995) and gives the value of the derivative of the potential function at 0 needed to perfor[r] ... See full document

... In particular, we give several classes of facet defining inequalities of this polytope and we prove that the separation problem associated to one of these classes of inequalities is NP[r] ... See full document

... Certamente estes fatos contribuíram para a fundação da Associação Latino-Ibero-Americana de Pesquisa Operacional, ALIO, em 1982, do qual Galvão foi o presidente no primeiro biênio, alé[r] ... See full document

... In Section 4, numerical results are used to evaluate the efficiency of other strategies, by keeping a small percentage of best performing chromosomes from generation to generation and [r] ... See full document

... We present integer linear models with a polynomial number of variables and constraints for combinatorial optimization problems in graphs: optimum elementary cycles, optimum elementary p[r] ... See full document

... (A family L of chords satisfies the Helly property when every subfamily of pairwise intersecting chords of L has a common point of intersection.) A conjecture by Durán (2000) state[r] ... See full document

... Este editor precisa destacar e agradecer a iniciativa e a valiosa colaboração que teve dos Professores Cláudio Thomas Bornstein e Nair Maria Maia de Abreu, ambos da Universidade Federa[r] ... See full document

... Empirical modeling is considered from the perspectives of a general scheme for the Strategy of Empirical Research and Optimization Process (SEROP). This approach intends to facilitate t[r] ... See full document