Célia Paquay
PhD in Economics and Management
Associate Professor at HEC - Liège
Associate Professor at HEC - Liège
Welcome to my home page!
I am an Associate Professor at HEC Liège - Management School of the University of Liege, Belgium.
My key research interests are
Operations Research and Operations Management,
Combinatorial Optimisation,
Cutting and Packing Problems,
Patient transportation,
Logistics and Supply ChainManagement.
To contact me: cpaquay@uliege.be
Google scholar profile: https://scholar.google.be/citations?user=RDUYXOwAAAAJ&hl=fr
Sept. 2020 - present
Associate Professor in Quantitative methods in management
HEC, ULiège, Belgium
2017-present
Visiting lecturer in "Operations research" for the third block of bachelor in economics and business management.
Faculty of Economics, Social Sciences and Business Administration, UNamur, Belgium
Jan. 2019- Aug. 2020
Assistant Professor in Operations Research.
School of Business and Economics, Maastricht University, The Netherlands
August 2018
Co-lecturer in "Quantitative methods“ for a summer school designed for international students.
HEC, ULiège, Belgium
2017-2019
Post doctoral researcher on PRESupply, a project from the Walloon region in partnership with companies and other universities.
Project leader: Prof. Yves Crama
HEC, ULiège, Belgium
2011- 2017
Teaching Assistant in "Statistique descriptive", "Mathématiques: Analyse infinitésimale", "Mathématiques pour ingénieurs de gestion" , "Supply chain management", and "Distribution management".
HEC, ULiège, Belgium
Topic: Capacitated Vehicle Routing Problem with time windows and 3D loading constraints
with Emeline LELOUP and Thierry PIRONET
Topic: Wood reuse optimization
with Pauline BESSEMANS
Topic: In response to new requirements related to EUDR, a consortium of partners, supported by “LogisticsInWallonia” and comprising BFConsult, deuse, UCLouvain (Earth and Life Institute) and HEC Liège (QuantOM & Centre d'Économie Sociale), launched the EcoSource project in May 2024. This ambitious project aims to develop a tool to manage information and facilitate the implementation of due diligence for European importers of products covered by the EUDR.
with Antoine GAVROYE, Thierry PIRONET and Virginie XHAUFLAIR
(More info: https://eco-source.be/)
Leloup, E., Paquay, C., Pironet, T., & Oliveira, J. F. (2025). A three-phase algorithm for the three-dimensional loading vehicle routing problem with split pickups and time windows. European Journal of Operational Research, 323(1), 45-61. https://doi.org/10.1016/j.ejor.2024.12.005
Giménez-Palacios, I., Parreño, F., Álvarez-Valdés, R., Paquay, C., Oliveira, B. B., Carravilla, M. A., & Oliveira, J. F. (2022). First-mile logistics parcel pickup: Vehicle routing with packing constraints under disruption. Transportation Research Part E: Logistics and Transportation Review, 164, 102812. https://doi.org/10.1016/j.tre.2022.102812
Saint-Guillain, M., Paquay, C., & Limbourg, S. (2021). Time-dependent stochastic vehicle routing problem with random requests: Application to online police patrol management in Brussels. European Journal of Operational Research, 292(3), 869-885 . https://doi.org/10.1016/j.ejor.2020.11.007
Paquay, C., Y. Crama, and Th. Pironet (2020). Recovery management for a dial-a-ride system with real-time disruptions. European Journal of Operational Research 280 (3), 953-969. https://doi.org/10.1016/j.ejor.2019.08.006
Paquay, C., S. Limbourg, and M. Schyns (2018). A tailored two-phase constructive heuristic for the three-dimensional multiple bin size bin packing problem with transportation constraints. European Journal of Operational Research 267 (1), 52–64. https://doi.org/10.1016/j.ejor.2017.11.010
Paquay, C., S. Limbourg, M. Schyns and J.F. Oliveira (2018). MIP-based constructive heuristics for the three-dimensional bin packing problem with transportation constraints. International Journal of Production Research 56 (4), 1581–1592. https://doi.org/10.1080/00207543.2017.1355577
Paquay, C. (2017). The three-dimensional rectangular multiple bin size bin packing problem with transportation constraints: a case study in the field of air transportation. 4OR Quarterly Journal of the Belgian, French and Italian Operations Research Societies 15 (4), 431–432. https://doi.org/10.1007/s10288-017-0347-1
Paquay, C., M. Schyns, and S. Limbourg (2016). A mixed integer programming formulation for the three-dimensional bin packing problem deriving from an air cargo application. International Transactions in Operational Research 23 (1-2), 187–213. http://dx.doi.org/10.1111/itor.12111
List of conference presentations available here: https://tinyurl.com/2s4jjkm4
Dec. 2020: 2019 ITOR Best Paper Award (Category: Methodology and Applications ) by IFORS for the article "Paquay, C., M. Schyns, and S. Limbourg (2016). A mixed integer programming formulation for the three-dimensional bin packing problem deriving from an air cargo application. International Transactions in Operational Research 23 (1-2), 187–213"
Nov. 2019 Member of the winning team atWe Cargo hackathon (https://www.wecargo.be/hackathon/)
Academic representative at Faculty Council of HEC Liège (from March 2022)
Jury secretary for the master in management Sciences (from September 2022)
Regularly involved in commissions for new positions at HEC-Liège
Currently supervising two PhD students
Currently involved in 5 thesis committees
Board member of the Belgian Operational Research Society (ORBEL) (from 2022)
Board member of the EURO Special Interest Group in Cutting and Packing - ESICUP (from 2023)
Regular reviewer for European Journal of Operational Research, Computers & Operations Research, International Transactions in Operational Research, Journal of Scheduling, Central European Journal of Operations Research, International Journal of Production Research
in charge of or involved in organizing of several international conferences: ORBEL37 (2023, HEC Liège, Chair); ORBEL 32 (2018, HEC Liège); BIVEC-GIBET Transport Research Days (2017, HEC Liège); 14th ESICUP Meeting (2017, HEC Liège) ; NECTAR cluster 1 meeting on Networks: "Efficient European Multimodal Networks" (2014, HEC Liège)
2011-2017
PhD in Economics and Management, specialised in Operations Research.
PhD Thesis: "The three-dimensional rectangular multiple bin size bin packing problem with transportation constraints: a case study in the field of air transportation".
Advisor: Prof. Sabine Limbourg; Co-advisor: Prof. Michaël Schyns
HEC, ULiège, Belgium
2011-2013
Teaching training organised by the "Institut de Formation et de Recherche en Enseignement Supérieur" (IFRES).
ULiège, Belgium
2011-2013
Doctoral School in Management Sciences set up jointly by the Université Libre de Bruxelles (ULB), the University of Liège (ULiège) and the University of Mons (UMons).
2009-2011
Master in Mathematics, specialised in Computer Sciences.
Master Thesis: "L’influence de l’activité solaire sur le champ magnétique terrestre".
Advisor: Prof. Samuel Nicolay
Université of Liège, Belgium
2006-2009
Bachelor in Mathematics.
Université of Liège, Belgium , University of Liège, Belgium