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A deep-learning framework for enhancing habitat identification based on species composition

Leblanc C., Bonnet P., Servajean M., Chytrý M., Argagnon O., Bergamini A., Biurrun I., Bonari G., Campos J.A., Carni A., De Sanctis M., Dengler J., Garbolino E., Golub V., Jandt U., Jansen F., Lebedeva M., Lenoir J., Moeslund J.E., Pérez-Haase A., Pielech R., Šibík J., Stanisci A., Swacha G., Uogintas D., Vassilev K., Wohlgemuth T., Joly A.. 2024. Applied Vegetation Science, 27 (3) : 17 p..

DOI: 10.58060/QR4B-G979

DOI: 10.1111/avsc.12802

Aims: The accurate classification of habitats is essential for effective biodiversity conservation. The goal of this study was to harness the potential of deep learning to advance habitat identification in Europe. We aimed to develop and evaluate models capable of assigning vegetation-plot records to the habitats of the European Nature Information System (EUNIS), a widely used reference framework for European habitat types. Location: The framework was designed for use in Europe and adjacent areas (e.g., Anatolia, Caucasus). Methods: We leveraged deep-learning techniques, such as transformers (i.e., models with attention components able to learn contextual relations between categorical and numerical features) that we trained using spatial k-fold cross-validation (CV) on vegetation plots sourced from the European Vegetation Archive (EVA), to show that they have great potential for classifying vegetation-plot records. We tested different network architectures, feature encodings, hyperparameter tuning and noise addition strategies to identify the optimal model. We used an independent test set from the National Plant Monitoring Scheme (NPMS) to evaluate its performance and compare its results against the traditional expert systems. Results: Exploration of the use of deep learning applied to species composition and plot-location criteria for habitat classification led to the development of a framework containing a wide range of models. Our selected algorithm, applied to European habitat types, significantly improved habitat classification accuracy, achieving a more than twofold improvement compared to the previous state-of-the-art (SOTA) method on an external data set, clearly outperforming expert systems. The framework is shared and maintained through a GitHub repository. Conclusions: Our results demonstrate the potential benefits of the adoption of deep learning for improving the accuracy of vegetation classification. They highlight the importance of incorporating advan

Mots-clés : biodiversité; habitat; intelligence artificielle; classification; modélisation environnementale; conservation de la diversité biologique

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