activity
20202026
most citedSMT 2.0: A Surrogate Modeling Toolbox with a focus on Hierarchical and Mixed Variables Gaussian Processes

125 citations · 263 across the 17 of their papers we have counts for

collaborators

17 papers

math.OC2026

Adaptive direct search algorithms with relaxable and quantifiable constraints

Charles Audet, Théo Denorme, Youssef Diouane +2

This work introduces ADS-PB, an extension of the Adaptive Direct Search (ADS) framework for solving constrained blackbox optimization problems. With ADS, iterates progress without…

math.OC2026

Efficient multidisciplinary design via Bayesian optimization

Nathalie Bartoli, Thierry Lefebvre, Rémi Lafage +3

This study introduces SEGOMOE, a Bayesian optimization tool for optimizing complex, computationally expensive systems, especially in aeronautics. It efficiently handles mixed desig…

math.OC2026

A penalty-interior point method combined with MADS for equality and inequality constrained optimization

Charles Audet, Andrea Brilli, Youssef Diouane +3

This work introduces MADS-PIP, an efficient framework that integrates a penalty-interior point strategy into the mesh adaptive direct search (MADS) algorithm for solving nonsmooth…

math.OC2025

Adaptive direct search algorithms for constrained optimization

Charles Audet, Théo Denorme, Youssef Diouane +2

Two families of directional direct search methods have emerged in derivative-free and blackbox optimization (DFO and BBO), each based on distinct principles: Mesh Adaptive Direct S…

cs.AI2025

System-of-systems Modeling and Optimization: An Integrated Framework for Intermodal Mobility

Paul Saves, Jasper Bussemaker, Rémi Lafage +4

For developing innovative systems architectures, modeling and optimization techniques have been central to frame the architecting process and define the optimization and modeling p…

math.OC2025

CatMADS: Mesh Adaptive Direct Search for constrained blackbox optimization with categorical variables

Charles Audet, Youssef Diouane, Edward Hallé-Hannan +2

Solving optimization problems in which functions are blackboxes and variables involve different types poses significant theoretical and algorithmic challenges. Nevertheless, such s…

cs.LG2025★ 2 cited

Modeling Hierarchical Spaces: A Review and Unified Framework for Surrogate-Based Architecture Design

Paul Saves, Edward Hallé-Hannan, Jasper Bussemaker +2

Simulation-based problems involving mixed-variable inputs frequently feature domains that are hierarchical, conditional, heterogeneous, or tree-structured. These characteristics po…

cs.LG2025★ 3 cited

Multi-objective Bayesian Optimization With Mixed-categorical Design Variables for Expensive-to-evaluate Aeronautical Applications

Nathalie Bartoli, Thierry Lefebvre, Rémi Lafage +8

This work aims at developing new methodologies to optimize computational costly complex systems (e.g., aeronautical engineering systems). The proposed surrogate-based method (often…

stat.ME2025★ 9 cited

Bayesian optimization for mixed variables using an adaptive dimension reduction process: applications to aircraft design

Paul Saves, Nathalie Bartoli, Youssef Diouane +5

Multidisciplinary design optimization methods aim at adapting numerical optimization techniques to the design of engineering systems involving multiple disciplines. In this context…

cs.LG2025★ 11 cited

Regularized infill criteria for multi-objective Bayesian optimization with application to aircraft design

Robin Grapin, Youssef Diouane, Joseph Morlier +4

Bayesian optimization is an advanced tool to perform ecient global optimization It consists on enriching iteratively surrogate Kriging models of the objective and the constraints b…

math.OC2025★ 5 cited

High-Dimensional Bayesian Optimization Using Both Random and Supervised Embeddings

Rémy Priem, Youssef Diouane, Nathalie Bartoli +2

Bayesian optimization (BO) is one of the most powerful strategies to solve computationally expensive-to-evaluate blackbox optimization problems. However, BO methods are conventiona…

stat.ML2024★ 2 cited

A distance for mixed-variable and hierarchical domains with meta variables

Edward Hallé-Hannan, Charles Audet, Youssef Diouane +2

Heterogeneous datasets emerge in various machine learning and optimization applications that feature different input sources, types or formats. Most models or methods do not native…

math.OC2023★ 7 cited

High-dimensional mixed-categorical Gaussian processes with application to multidisciplinary design optimization for a green aircraft

Paul Saves, Youssef Diouane, Nathalie Bartoli +2

Recently, there has been a growing interest in mixed-categorical metamodels based on Gaussian Process (GP) for Bayesian optimization. In this context, different approaches can be u…

cs.LG2023★ 125 cited

SMT 2.0: A Surrogate Modeling Toolbox with a focus on Hierarchical and Mixed Variables Gaussian Processes

Paul Saves, Remi Lafage, Nathalie Bartoli +6

The Surrogate Modeling Toolbox (SMT) is an open-source Python package that offers a collection of surrogate modeling methods, sampling techniques, and a set of sample problems. Thi…

math.OC2022★ 22 cited

A mixed-categorical correlation kernel for Gaussian process

P. Saves, Y. Diouane, N. Bartoli +2

Recently, there has been a growing interest for mixed-categorical meta-models based on Gaussian process (GP) surrogates. In this setting, several existing approaches use different…

cs.CE2020★ 23 cited

An efficient application of Bayesian optimization to an industrial MDO framework for aircraft design

Remy Priem, Hugo Gagnon, Ian Chittick +3

The multi-level, multi-disciplinary and multi-fidelity optimization framework developed at Bombardier Aviation has shown great results to explore efficient and competitive aircraft…

stat.ML2020★ 54 cited

Upper Trust Bound Feasibility Criterion for Mixed Constrained Bayesian Optimization with Application to Aircraft Design

Rémy Priem, Nathalie Bartoli, Youssef Diouane +1

Bayesian optimization methods have been successfully applied to black box optimization problems that are expensive to evaluate. In this paper, we adapt the so-called super effcient…