Country: Brazil

Found 369 papers in total
Restricting flexibility of weights in DEA using MSEA regression analysis
Restricting flexibility of weights in DEA using MSEA regression analysis
2003,
In this paper we present a procedure based on the use of Minimum Sum of Absolute...
Redistribution of inputs and outputs in models of data envelopment analysis with zero-sum gains
Redistribution of inputs and outputs in models of data envelopment analysis with zero-sum gains
2004,
This paper presents an extension to the Zero Sum Gains DEA model (ZSG-DEA) useful for...
Study on methods for selection of variables in DEA
Study on methods for selection of variables in DEA
2007,
One of the main issues in DEA modeling is the variables choice. This may have...
Synthetic control charts with two-stage sampling for monitoring bivariate processes
Synthetic control charts with two-stage sampling for monitoring bivariate processes
2007,
In this article, we consider the synthetic control chart with two-stage sampling (...
A methodology to filter time series: application to minute-by-minute electric load series
A methodology to filter time series: application to minute-by-minute electric load series
2004,
In this article a methodology for filtering a time series is presented, with...
Cooperation between artificial neural networks and technical ‘classic’ estimates of demand for a series of sales of beer in Australia
Cooperation between artificial neural networks and technical ‘classic’ estimates of demand for a series of sales of beer in Australia
2002,
The main goal of this article is to evaluate the complementation between forecasting...
Application of hypercube model of queues to assess the decentralization of ambulances in an urban system of emergency medical care
Application of hypercube model of queues to assess the decentralization of ambulances in an urban system of emergency medical care
2004,
One of the major concerns of urban emergency medical systems is to provide the fastest...
Bayesian binary regression model: an application to in-hospital death after AMI prediction
Bayesian binary regression model: an application to in-hospital death after AMI prediction
2004,
A Bayesian binary regression model is developed to predict death of patients after...
Web cache location
Web cache location
2004,
Stress placed on network infrastructure by the popularity of the World Wide Web may be...
Optimization of methods of quality control of drugs using genetic algorithm and tabu search
Optimization of methods of quality control of drugs using genetic algorithm and tabu search
2003,
Two new methodologies of analysis for the antihypertensive drugs quantification are...
Determination of servive schedules for military, considering preferences and hierarchy
Determination of servive schedules for military, considering preferences and hierarchy
2004,
The goal of this paper is to present a Binary Integer Linear Programming (BILP) model...
Dimensioning of lots and programming of the furnace in an automated foundry midsize
Dimensioning of lots and programming of the furnace in an automated foundry midsize
2003,
This work consists of studying a practical problem that arises from a foundry, which...
A spatial price equilibrium model in the oligopolistic market for oil derivatives: an application to the Brazilian scenario
A spatial price equilibrium model in the oligopolistic market for oil derivatives: an application to the Brazilian scenario
2007,
This paper presents a spatial price equilibrium model in an oligopoly market for...
Data envelopment analysis in the study of the efficiency and benchmarks for Brazilian airlines
Data envelopment analysis in the study of the efficiency and benchmarks for Brazilian airlines
2003,
This paper aims to evaluate the efficiency of Brazilian air carriers. Data Envelopment...
Flow/multicommodity flow model for transportation and production planning problems
Flow/multicommodity flow model for transportation and production planning problems
2003,
We present here a Flow/Multicommodity Flow model for Transportation and Production...
Allocation of flows of passengers on a large public transport network formulated as a problem of variational inequalities
Allocation of flows of passengers on a large public transport network formulated as a problem of variational inequalities
2003,
The biggest cities in the world faced problems in the transportation system. In order...
A comprehensive urban parameter as a reference for local analyses in the lease-allocation models
A comprehensive urban parameter as a reference for local analyses in the lease-allocation models
2004,
The objective of this work is to evaluate the use of a global accessibility index as a...
Integer linear models with a polynomial number of variables and constraints for some classical combinatorial optimization problems
Integer linear models with a polynomial number of variables and constraints for some classical combinatorial optimization problems
2003,
We present integer linear models with a polynomial number of variables and constraints...
A polynomial algorithm for the packing problem of containers with static stability of load
A polynomial algorithm for the packing problem of containers with static stability of load
2003,
A polynomial computational bounded resources heuristic for the Three-Dimensional Bin...
Bayesian analysis of the differential functioning of item
Bayesian analysis of the differential functioning of item
2007,
This paper uses a Bayesian approach for parameter estimation in Item Response Theory...
On the convex hull of 3-cycles of the complete graph
On the convex hull of 3-cycles of the complete graph
2003,
Let Kn be the complete undirected graph with n vertices. A 3-cycle is a cycle...
On a conjecture concerning Helly circle graphs
On a conjecture concerning Helly circle graphs
2003,
We say that G is an e-circle graph if there is a bijection between its vertices and...
Computational complexity of classical problems for hereditary clique-Helly graphs
Computational complexity of classical problems for hereditary clique-Helly graphs
2004,
A graph is clique-Helly when its cliques satisfy the Helly property. A graph is...
Artificial immune system to solve the problem of minimum generating tree with parameters
Artificial immune system to solve the problem of minimum generating tree with parameters
2007,
This work proposes an heuristical approach based on evolutionary computation, whose...
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