Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Improving Land Cover Classification Using Genetic Programming

Version 1 : Received: 7 October 2020 / Approved: 8 October 2020 / Online: 8 October 2020 (09:21:34 CEST)

How to cite: Batista, J.; Cabral, A.; Vasconcelos, M.; Vanneschi, L.; Silva, S. Improving Land Cover Classification Using Genetic Programming. Preprints 2020, 2020100168 (doi: 10.20944/preprints202010.0168.v1). Batista, J.; Cabral, A.; Vasconcelos, M.; Vanneschi, L.; Silva, S. Improving Land Cover Classification Using Genetic Programming. Preprints 2020, 2020100168 (doi: 10.20944/preprints202010.0168.v1).

Abstract

Genetic Programming (GP) is a powerful Machine Learning (ML) algorithm that can produce readable white-box models. Although successfully used for solving an array of problems in different scientific areas, GP is still not well known in Remote Sensing. The M3GP algorithm, a variant of the standard GP algorithm, performs Feature Construction by evolving hyper-features from the original ones. In this work, we use the M3GP algorithm on several satellite images over different countries to perform binary classification of burnt areas and multiclass classification of land cover types. We add the evolved hyper-features to the reference datasets and observe a significant improvement of the performance of three state-of-the-art ML algorithms (Decision Trees, Random Forests and XGBoost) on the multiclass classification datasets, with no significant effect on the binary classification ones. We show that adding the M3GP hyper-features to the reference datasets brings better results than adding the well-known spectral indices NDVI, NDWI and NBR. We also compare the performance of the M3GP hyper-features in the binary classification problems with those created by other Feature Construction methods like FFX and EFS.

Subject Areas

Genetic Programming; Evolutionary Computation; Machine Learning; Classification; Multiclass Classification; Feature Construction; Hyper-features; Spectral Indices

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