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  4. Instance norm improves meta-learning in class-imbalanced land cover classification
 
conference poster not in proceedings

Instance norm improves meta-learning in class-imbalanced land cover classification

Russwurm, Marc Conrad  
•
Tuia, Devis  
November 1, 2022
36th Conference on Neural Information Processing Systems

Distribution shift is omnipresent in geographic data, where various climatic and cultural factors lead to different representations across the globe. We aim to adapt dynamically to unseen data distributions with model-agnostic meta-learning, where data sampled from each distribution is seen as a task with only a few annotated samples. Transductive batch normalization layers are often employed in meta-learning models, as they reach the highest numerical accuracy on the class-balanced target tasks used as meta-learning benchmarks. In this work, we demonstrate empirically that transductive batch normalization collapses when deployed on a real class-imbalanced land cover classification problem. We propose a solution to replace batch normalization with instance normalization. This modification consistently outperformed all other normalization alternatives across different meta-learning algorithms in our class-imbalanced land cover classification test tasks.

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Type
conference poster not in proceedings
Author(s)
Russwurm, Marc Conrad  
Tuia, Devis  
Date Issued

2022-11-01

Written at

EPFL

EPFL units
ECEO  
Event nameEvent placeEvent date
36th Conference on Neural Information Processing Systems

New Orleans, LA, United States and Hybrid Conference

Nov 28-Dec 9, 2022

Available on Infoscience
February 9, 2023
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/194696
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