Model selection for extremal dependence structures using deep learning: Application to environmental data

التفاصيل البيبلوغرافية
العنوان: Model selection for extremal dependence structures using deep learning: Application to environmental data
المؤلفون: Ahmed, Manaf, Maume-Deschamps, Véronique, Ribereau, Pierre
سنة النشر: 2024
المجموعة: Physics (Other)
مصطلحات موضوعية: Physics - Data Analysis, Statistics and Probability
الوصف: This paper introduces a new methodology for extreme spatial dependence structure selection. It is based on deep learning techniques, specifically Convolutional Neural Networks -CNNs. Two schemes are considered: in the first scheme, the matching probability is evaluated through a single CNN while in the second scheme, a hierarchical procedure is proposed: a first CNN is used to select a max-stable model, then another network allows to select the most adapted covariance function, according to the selected max-stable model. This model selection approach demonstrates performs very well on simulations. In contrast, the Composite Likelihood Information Criterion CLIC faces issues in selecting the correct model. Both schemes are applied to a dataset of 2m air temperature over Iraq land, CNNs are trained on dependence structures summarized by the Concurrence probability.
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2409.13276
رقم الأكسشن: edsarx.2409.13276
قاعدة البيانات: arXiv