Journal: Pesquisa Operacional

Found 223 papers in total
Estimation of the lower quota for the reliability of systems by tree-fault
Estimation of the lower quota for the reliability of systems by tree-fault
2006,
The fault tree analysis is an important technique in the context of reliability and...
A data envelopment analysis model for rank ordering suppliers in the oil industry
A data envelopment analysis model for rank ordering suppliers in the oil industry
2002,
The benefits of integration companies–suppliers top the strategic agendas of...
Identifying the operational best practices through association Benchmarking – DEA: the case of oil refineries
Identifying the operational best practices through association Benchmarking – DEA: the case of oil refineries
2006,
This work studies the implementation of an Operational Research method named Data...
Multicriteria decision-making model for locating New Jaguaribara with vip analysis
Multicriteria decision-making model for locating New Jaguaribara with vip analysis
2006,
Projects of great dams, most of the time, imply in the flood of cities and populated...
Performance assessment of the soccer teams in Brazil using DEA
Performance assessment of the soccer teams in Brazil using DEA
2006,
In this paper we propose a DEA (Data Envelopment Analysis) based ranking for Brazilian...
Study and implementation of collaborative transportation for loads of great volume
Study and implementation of collaborative transportation for loads of great volume
2006,
This research proposes to carry out a study of Collaboration Transportation of large...
An interactive heuristic for generation of paths in graphs with restriction of grades: application to the design of railway systems
An interactive heuristic for generation of paths in graphs with restriction of grades: application to the design of railway systems
2002,
The work discusses the design of a metro network through a graph-theoretical model...
Analysis of variation in productivity of Portuguese water services between 1994 and 2001 using the Malmquist approach
Analysis of variation in productivity of Portuguese water services between 1994 and 2001 using the Malmquist approach
2006,
A decision-making unit productivity can be defined as the relationship between the...
Group decision model for managing loss of water
Group decision model for managing loss of water
2006,
The planning of actions in supply systems, especially related to loss reduction and...
An analysis of the importance of appropriate tie breaking rules in dispatch heuristics
An analysis of the importance of appropriate tie breaking rules in dispatch heuristics
2006,
In this paper, we analyse the effect of using appropriate tie breaking criteria in...
A Bayesian approach to investment decisions
A Bayesian approach to investment decisions
2006,
This study analyses the investment decisions of 497 Brazilian firms in the period...
Modelling min–max–min to the problem of radio base stations location
Modelling min–max–min to the problem of radio base stations location
2006,
We report a new proposal to solve the base station location problem. This proposal is...
On the measurement of capacity utilisation and coast efficiency: a non-parametric approach at firm level
On the measurement of capacity utilisation and coast efficiency: a non-parametric approach at firm level
2002,
In this paper we evaluate the inefficiency generated by an inadequate structure of the...
SART: An intelligent assistant system for subway control
SART: An intelligent assistant system for subway control
2000,
One of the main characteristics of a subway line is its large transport capacity...
An heuristic method based on Lagrangean relaxation for the manufacturer's pallet loading problem
An heuristic method based on Lagrangean relaxation for the manufacturer's pallet loading problem
2000,
In this study we develop a heuristic method, based on Lagrangean and surrogate...
Cylinder packing by simulated annealing
Cylinder packing by simulated annealing
2000,
This paper is motivated by the problem of loading identical item, of circular base...
An algorithm for determining the k-best solutions of the one-dimensional knapsack problem
An algorithm for determining the k-best solutions of the one-dimensional knapsack problem
2000,
In this work we present an enumerative scheme for determining the K-best solutions (K...
Process optimization of automatic insertion of electronic components using asynchronous teams technique
Process optimization of automatic insertion of electronic components using asynchronous teams technique
2001,
This paper presents a computational system which aims to optimize the automatic...
The strategy of empirical research and optimization process
The strategy of empirical research and optimization process
2001,
Empirical modeling is considered from the perspectives of a general scheme for the...
Single product lot sizing problem with capacity constraints: Modeling, resolution method and computational results
Single product lot sizing problem with capacity constraints: Modeling, resolution method and computational results
2000,
This work presents a study on the resolution method of the single product lot sizing...
An analysis regarding the influence of the information stochastic perturbations on a model of linear programming
An analysis regarding the influence of the information stochastic perturbations on a model of linear programming
2000,
The impact of stochastic perturbations in a forest planning model was discussed in...
A projection method for linear complementarity problems
A projection method for linear complementarity problems
2000,
In this article we present an iterative two-step algorithm for the numerical solution...
GRASP for QAP: An acceptance limit for initial solutions
GRASP for QAP: An acceptance limit for initial solutions
2000,
The Quadratic Assignment Problem (QAP) is an NP-hard problem which has been defying...
A procedure for calculating indexes from a multivariate databank
A procedure for calculating indexes from a multivariate databank
2001,
This paper presents a solution to the problem of finding an index number I for ranking...
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