Search Results for author: Raphaël Huser

Found 11 papers, 6 papers with code

Neural Methods for Amortised Parameter Inference

no code implementations18 Apr 2024 Andrew Zammit-Mangion, Matthew Sainsbury-Dale, Raphaël Huser

Simulation-based methods for making statistical inference have evolved dramatically over the past 50 years, keeping pace with technological advancements.

Bayesian Inference

At the junction between deep learning and statistics of extremes: formalizing the landslide hazard definition

no code implementations25 Jan 2024 Ashok Dahal, Raphaël Huser, Luigi Lombardo

We also use our model to further explore landslide hazard for the same return periods under different climate change scenarios up to the end of the century.

Neural Bayes Estimators for Irregular Spatial Data using Graph Neural Networks

2 code implementations4 Oct 2023 Matthew Sainsbury-Dale, Jordan Richards, Andrew Zammit-Mangion, Raphaël Huser

Neural Bayes estimators are neural networks that approximate Bayes estimators in a fast and likelihood-free manner.

Uncertainty Quantification

Deep graphical regression for jointly moderate and extreme Australian wildfires

no code implementations28 Aug 2023 Daniela Cisneros, Jordan Richards, Ashok Dahal, Luigi Lombardo, Raphaël Huser

Recent wildfires in Australia have led to considerable economic loss and property destruction, and there is increasing concern that climate change may exacerbate their intensity, duration, and frequency.

Management regression

Flexible and efficient spatial extremes emulation via variational autoencoders

no code implementations16 Jul 2023 Likun Zhang, Xiaoyu Ma, Christopher K. Wikle, Raphaël Huser

In this paper, we aim to push the boundaries on computation and modeling of high-dimensional spatial extremes via integrating a new spatial extremes model that has flexible and non-stationary dependence properties in the encoding-decoding structure of a variational autoencoder called the XVAE.

Bayesian Inference Gaussian Processes

Neural Bayes estimators for censored inference with peaks-over-threshold models

2 code implementations27 Jun 2023 Jordan Richards, Matthew Sainsbury-Dale, Andrew Zammit-Mangion, Raphaël Huser

Making inference with spatial extremal dependence models can be computationally burdensome since they involve intractable and/or censored likelihoods.

Insights into the drivers and spatio-temporal trends of extreme Mediterranean wildfires with statistical deep-learning

1 code implementation4 Dec 2022 Jordan Richards, Raphaël Huser, Emanuele Bevacqua, Jakob Zscheischler

Our results highlight that whilst VPD, air temperature, and drought significantly affect wildfire occurrence, only VPD affects wildfire spread.

Regression modelling of spatiotemporal extreme U.S. wildfires via partially-interpretable neural networks

1 code implementation16 Aug 2022 Jordan Richards, Raphaël Huser

In this paper, we propose a new methodological framework for performing extreme quantile regression using artificial neutral networks, which are able to capture complex non-linear relationships and scale well to high-dimensional data.

Additive models Computational Efficiency +2

Conex-Connect: Learning Patterns in Extremal Brain Connectivity From Multi-Channel EEG Data

no code implementations3 Jan 2021 Matheus B. Guerrero, Raphaël Huser, Hernando Ombao

Our proposed method, the conditional extremal dependence for brain connectivity (Conex-Connect), is a pioneering approach that links the association between extreme values of higher oscillations at a reference channel with the other brain network channels.

EEG

Modeling Non-Stationary Temperature Maxima Based on Extremal Dependence Changing with Event Magnitude

1 code implementation2 Jun 2020 Peng Zhong, Raphaël Huser, Thomas Opitz

The modeling of spatio-temporal trends in temperature extremes can help better understand the structure and frequency of heatwaves in a changing climate.

Methodology Applications

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