Search Results for author: Sébastien da Veiga

Found 12 papers, 3 papers with code

Gaussian process regression with Sliced Wasserstein Weisfeiler-Lehman graph kernels

no code implementations6 Feb 2024 Raphaël Carpintero Perez, Sébastien da Veiga, Josselin Garnier, Brian Staber

Supervised learning has recently garnered significant attention in the field of computational physics due to its ability to effectively extract complex patterns for tasks like solving partial differential equations, or predicting material properties.

Graph Classification Graph Regression +1

Benchmarking Bayesian neural networks and evaluation metrics for regression tasks

no code implementations8 Jun 2022 Brian Staber, Sébastien da Veiga

Due to the growing adoption of deep neural networks in many fields of science and engineering, modeling and estimating their uncertainties has become of primary importance.

Benchmarking Open-Ended Question Answering +2

SHAFF: Fast and consistent SHApley eFfect estimates via random Forests

1 code implementation25 May 2021 Clément Bénard, Gérard Biau, Sébastien da Veiga, Erwan Scornet

Interpretability of learning algorithms is crucial for applications involving critical decisions, and variable importance is one of the main interpretation tools.

A sampling criterion for constrained Bayesian optimization with uncertainties

1 code implementation9 Mar 2021 Reda El Amri, Rodolphe Le Riche, Céline Helbert, Christophette Blanchet-Scalliet, Sébastien da Veiga

The main contribution of this work is an acquisition criterion that accounts for both the average improvement in objective function and the constraint reliability.

Bayesian Optimization

MDA for random forests: inconsistency, and a practical solution via the Sobol-MDA

no code implementations26 Feb 2021 Clément Bénard, Sébastien da Veiga, Erwan Scornet

Variable importance measures are the main tools to analyze the black-box mechanisms of random forests.

Variable Selection

Kernel-based ANOVA decomposition and Shapley effects -- Application to global sensitivity analysis

no code implementations14 Jan 2021 Sébastien da Veiga

In particular when the inputs are independent, Sobol' sensitivity indices attribute a portion of the output of interest variance to each input and all possible interactions in the model, thanks to a functional ANOVA decomposition.

Statistics Theory Statistics Theory

Interpretable Random Forests via Rule Extraction

no code implementations29 Apr 2020 Clément Bénard, Gérard Biau, Sébastien da Veiga, Erwan Scornet

We introduce SIRUS (Stable and Interpretable RUle Set) for regression, a stable rule learning algorithm which takes the form of a short and simple list of rules.

SIRUS: Stable and Interpretable RUle Set for Classification

no code implementations19 Aug 2019 Clément Bénard, Gérard Biau, Sébastien da Veiga, Erwan Scornet

State-of-the-art learning algorithms, such as random forests or neural networks, are often qualified as "black-boxes" because of the high number and complexity of operations involved in their prediction mechanism.

Classification General Classification

Sequential model aggregation for production forecasting

no code implementations30 Nov 2018 Raphaël Deswarte, Véronique Gervais, Gilles Stoltz, Sébastien da Veiga

An extension of the deterministic aggregation approach is thus proposed in this paper to provide such multi-step-ahead forecasts.

regression

Global Sensitivity Analysis with Dependence Measures

no code implementations11 Nov 2013 Sébastien da Veiga

Global sensitivity analysis with variance-based measures suffers from several theoretical and practical limitations, since they focus only on the variance of the output and handle multivariate variables in a limited way.

feature selection

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