Georgios Douzas

Dr. Georgios Douzas

NOVA Information Management School
orcid

Research Focus & Metrics

Academic Career Length

19Years (2008-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
1 October 2018 in Information Sciences
Verified
Journal Article
Closed access
GDGeorgios Douzas
Georgios Douzas
Fernando BaçãoFernando Bação
Fernando Bação
FLFelix Last
Felix Last

1 January 2018 in Expert Systems with Applications
Verified
Journal Article
Closed access
GDGeorgios Douzas
Georgios Douzas
Fernando BaçãoFernando Bação
Fernando Bação

1 October 2019 in Information Sciences
Verified
Journal Article
Closed access
GDGeorgios Douzas
Georgios Douzas
Fernando BaçãoFernando Bação
Fernando Bação

1 October 2017 in Expert Systems with Applications
Verified
Journal Article
Closed access
GDGeorgios Douzas
Georgios Douzas
Fernando BaçãoFernando Bação
Fernando Bação

3 January 2022 in Expert Systems with Applications
Verified
Journal Article
Closed access
LCLuís Camacho
Luís Camacho
GDGeorgios Douzas
Georgios Douzas
FBFernando Bacao
Fernando Bacao

17 December 2019 in Remote Sensing
Verified
Journal Article
Open access
PDF file
GDGeorgios Douzas
Georgios Douzas
Fernando BaçãoFernando Bação
Fernando Bação
JFJoão Fonseca
João Fonseca
MKManvel Khudinyan
Manvel Khudinyan
The automatic production of land use/land cover maps continues to be a challenging problem, with important impacts on the ability to promote sustainability and good resource management. The ability to build robust automatic classifiers and produce accurate maps can have a significant impact on the way we manage and optimize natural resources. The difficulty in achieving these results comes from many different factors, such as data quality and uncertainty. In this paper, we address the imbalanced learning problem, a common and difficult conundrum in remote sensing that affects the quality of classification results, by proposing Geometric-SMOTE, a novel oversampling method, as a tool for addressing the imbalanced learning problem in remote sensing. Geometric-SMOTE is a sophisticated oversampling algorithm which increases the quality of the instances generated in previous methods, such as the synthetic minority oversampling technique. The performance of Geometric- SMOTE, in the LUCAS (Land Use/Cover Area Frame Survey) dataset, is compared to other oversamplers using a variety of classifiers. The results show that Geometric-SMOTE significantly outperforms all the other oversamplers and improves the robustness of the classifiers. These results indicate that, when using imbalanced datasets, remote sensing researchers should consider the use of these new generation oversamplers to increase the quality of the classification results.