Portrait de Eya Cherif

Eya Cherif

Collaborateur·rice de recherche - Leipzig University
Superviseur⋅e principal⋅e
David Rolnick
Sujets de recherche
Apprentissage profond
Google Scholar

Publications

GreenHyperSpectra: A multi-source hyperspectral dataset for global vegetation trait prediction
Eya Cherif
Arthur Ouaknine
Luke A. Brown
Phuong D. Dao
Kyle R. Kovach
Bing Lu
Daniel Mederer
Hannes Feilhauer
Teja Kattenborn
David Rolnick
Plant traits such as leaf carbon content and leaf mass are essential variables in the study of biodiversity and climate change. However, con… (voir plus)ventional field sampling cannot feasibly cover trait variation at ecologically meaningful spatial scales. Machine learning represents a valuable solution for plant trait prediction across ecosystems, leveraging hyperspectral data from remote sensing. Nevertheless, trait prediction from hyperspectral data is challenged by label scarcity and substantial domain shifts (\eg across sensors, ecological distributions), requiring robust cross-domain methods. Here, we present GreenHyperSpectra, a pretraining dataset encompassing real-world cross-sensor and cross-ecosystem samples designed to benchmark trait prediction with semi- and self-supervised methods. We adopt an evaluation framework encompassing in-distribution and out-of-distribution scenarios. We successfully leverage GreenHyperSpectra to pretrain label-efficient multi-output regression models that outperform the state-of-the-art supervised baseline. Our empirical analyses demonstrate substantial improvements in learning spectral representations for trait prediction, establishing a comprehensive methodological framework to catalyze research at the intersection of representation learning and plant functional traits assessment. All code and data are available at: https://github.com/echerif18/HyspectraSSL.
2025-09-17
NeurIPS.cc/2025/Datasets_and_Benchmarks_Track (poster)
doi.org
openreview.net