Eliane Gonalves Gomes

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Found 20 papers in total

Improving agricultural economic efficiency in Brazil

2015

In this article, we use Brazilian census data (1995/1996 and 2006) to model...

About negative efficiencies in Cross Evaluation BCC input oriented models

2013

It will be shown in this paper that the input oriented DEA BCC model can generate...

An ellipsoidal frontier model: Allocating input via parametric DEA

2011

This paper presents the ellipsoidal frontier model (EFM), a parametric data...

Probabilistic measures of efficiency and the influence of contextual variables in nonparametric production models: an application to agricultural research in Brazil

2010

In a research institution it is important to identify which management practices have...

Partial productivity ordinal aggregation: A case study with family farmers

2007

Productivity is the most usual indicator to measure agricultural performance. In this...

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...

Economic efficiency of Embrapa's research centers and the influence of contextual variables

2007

In this paper we measure, with a DEA BCC model, the economic efficiency of Embrapas...

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...

Variables selection in Data Envelopment Analysis applied to an analysis of the electric energy market

2007

In this paper we have two main goals. From a theoretical point of view we intend to...

Fuzzy DEA frontier in agricultural efficiency evaluation

2006

This paper uses Data Envelopment Analysis (DEA) to measure the efficiency of some...

Upper and lower bounds for non-radial efficiencies in data envelopment analysis: a vector approach

2005

This paper presents a new approach to evaluate non-radial DEA efficiencies. This...

Evaluating the performance of calculus classes using operational research tools

2002

This paper compares the efficiency of calculus classes. Two kinds of classes are...

Turning machine statica evaluation using methods for ranking improvement of DEA models

2005

In this paper we present turning machine study with the use of Data Envelopment...

Neural data envelopment analysis: A simulation

2004

This paper investigates the creation of efficiency measurements structures of...

Fuzzy DEA (data envelopment analysis) frontiers

2005

The “fuzzy” DEA frontier is applied in situations where some variables...

A smoothed frontier for the 3-dimensional BCC-DEA model

2004

The multipliers DEA model has multiple optimal solutions in the extreme-efficient...

Olympic ranking based on a zero sum gains Data Envelopment Analysis model

2003

It is usual to rank the participant countries in the Olympic Games in accordance with...

Step by step search for achievable intermediate targets in zero sum data envelopment analysis

2003

Classic DEA models do not assume any kind of production equilibrium for the whole set...

Integrating geographical information systems and multi-criteria methods: A case study

2002

This paper presents an application of the integration between Geographical Information...

Integrating GIS and MCDA to choose the best municipal district

2002

This paper presents an application of the integration between Geographical Information...

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