[PDF] Top 20 Pesqui. Oper. vol.25 número3

... Johnson & Pollak (1987) define Zykov planarity using a bipartite graph associated with the hypergraph (see also Walsh, 1975).. The planar representation of the bipartite graph H B [r] ... See full document

... This paper is organized as follows: in the next section the mathematical model for a single production center is presented and an efficient implementation of a forward dynamic programm[r] ... See full document

... Both models include input or output orientation, producing complete results (efficiency scores, weights, benchmarks, targets, and slacks.). Moreover, some advanced models were included[r] ... See full document

... In spite of the evident relevance of development time uncertainty’s impact in the assessment of technology development projects, the majority of models found in the literature focus ei[r] ... See full document

... The second term is the cost of producing all the refined products expressed as the cost of acquiring crude oil, either from own production or bought in the global market, including tra[r] ... See full document

... The results indicate that a product with small participation in total sales and negatively correlated with the aggregate sales of the remaining products (or individual items) tends to [r] ... See full document

... Abre-se a caixa de diálogo da Figura 14 e aceita-se o que está definido por omissão: são dados os limites superiores escolhidos para as funções objectivo tal como se pretendia (ponto o[r] ... See full document

... Table 2 provides data for the comparison of the distribution of the individual numbers of months with purchases predicted by the BG/BB model to that of the real number observed in the [r] ... See full document

... A comparative analysis of both the resource allocation sequential algorithm and the DEA-ZSG model shows they are based on similar assumptions: the efficiency frontier is not specified [r] ... See full document

... Exact vertex coloring is a very important problem in algorithmic graph theory, which can be solved through polynomial algorithms only for some particular families of graphs. The proble[r] ... See full document

... • The cutting plane algorithms are able to prove optimality of model (2) in less computing time than solving its LP relaxation with all inequalities added a priori in 87.09% of the in[r] ... See full document

... We proposed here to investigate the bandwidth protection costs of p -cycles and FIPP p -cycles in comparison with those of classical shared link and path protection, using column gene[r] ... See full document

... Este artigo tem como objetivo apresentar uma metodologia para modelagem do desempenho econômico-financeiro corporativo, baseando-se nos métodos multiatributos conjugados ao princípio da[r] ... See full document

... Table 1 shows some indicators computed for some efficient schedules: the schedule number, its total cost (in R$ thousands), the average number of exposures per individual (analogous to [r] ... See full document

... This work presented an approach to model availability of aging systems in standby mode, based on the generalized renewal process, to be used to optimize the scheduling of testing and p[r] ... See full document

... The methods of the ELECTRE family, a representative of the French School, are recommended for their greater flexibility and their differentiated positioning in relation to the concepts[r] ... See full document

... The Hyperbolic Penalty method seems to be an adequate choice for the WTA problem, which could be further detailed to be used in the Brazilian National Vaccination Program, as it conver[r] ... See full document

... A demonstration will now follow that the proposed model has all required conditions to be a smoothed BCC frontier: it must contain all the extreme efficient DMUs, be convex and outputs[r] ... See full document

... In these past 11 years, the number of issues per year of Pesquisa Operacional was increased from two to three and, we became part of SciELO, The Scientific Electronic Library Online,[r] ... See full document

... Similar to other multicriteria methods both in TODIM and THOR weights are non-negative numbers that are assigned to criteria or to alternatives for giving the relative importance of th[r] ... See full document