Browsing Research Articles (Geography, Geoinformatics and Meteorology) by Author "Okolie, Chukwuma"

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Digital elevation model correction in urban areas using extreme gradient boosting, land cover and terrain parameters

Okolie, Chukwuma; Mills, Jon; Adeleke, Adedayo; Smit, Julian (International Society for Photogrammetry and Remote Sensing, 2024-03)

The accuracy of digital elevation models (DEMs) in urban areas is influenced by numerous factors including land cover and terrain irregularities. Moreover, building artefacts in global DEMs cause artificial blocking of ...
The explainability of gradient-boosted decision trees for digital elevation model (dem) error prediction

Okolie, Chukwuma; Mills, Jon; Adeleke, Adedayo; Smit, Julian; Maduako, Ikechukwu (International Society of Photogrammetry and Remote Sensing, 2023-09)

Gradient boosted decision trees (GBDTs) have repeatedly outperformed several machine learning and deep learning algorithms in competitive data science. However, the explainability of GBDT predictions especially with earth ...

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