Publications

First-author publications

NomadBBO: A direct-search framework for constrained mixed-variable blackbox optimization in Python

E. Hallé-Hannan, C. Tribes (2026).

Preprint: arXiv:2609.19333.

Surrogate-based categorical neighborhoods for mixed-variable blackbox optimization

C. Audet, Y. Diouane, E. Hallé-Hannan, S. Le Digabel, C. Tribes (2026).

Preprint: arXiv:2603.27839.

CatMADS: Mesh adaptive direct-search for constrained blackbox optimization with categorical variables

C. Audet, Y. Diouane, E. Hallé-Hannan, S. Le Digabel, C. Tribes (2025).

To appear in SIAM Journal on Optimization (SIOPT). Preprint: arXiv:2506.06937.

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

E. Hallé-Hannan, C. Audet, Y. Diouane, S. Le Digabel, P. Saves (2025). Neurocomputing 653, 131208.

DOI: 10.1016/j.neucom.2025.131208

A General Mathematical Framework for Constrained Mixed-variable Blackbox Optimization Problems with Meta and Categorical Variables

C. Audet, E. Hallé-Hannan, S. Le Digabel (2023). Operations Research Forum 4(12).

DOI: 10.1007/s43069-022-00180-6

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

P. Saves, E. Hallé-Hannan, J. Bussemaker, Y. Diouane, N. Bartoli (2026). Structural and Multidisciplinary Optimization 69(65).

DOI: 10.1007/s00158-026-04249-2

Cat-Suite: A collection of optimization problems with categorical and quantitative variables for benchmarking

E. Hallé-Hannan, C. Audet, Y. Diouane, S. Le Digabel, C. Tribes (2025). Les cahiers du GERAD.

Manuscript: G-2025-39.