Université Laval
Faculty of Business Administration
Adnene Haji

Adnène
Hajji

ing.

Full Professor

Department of Operations and Decision Systems
FSA ULaval
Pavillon Palasis-Prince
Local 2521

Fields of Interest and Research

  • Mathematical modelling and simulation
  • Operations and supply chain management
  • Programming in operational research (including linear and nonlinear programming)
  • Data-driven estimation, optimization, and control
  • Stochastic models (including queueing and simulation)
  • Management information systems
  • Data visualization
  • Game theory and optimal control

Education

  • Postdoctorat en mathématique et génie industrielle (Oth), Polytechnique Montréal
  • Philosophiae Doctor in industrial engineering (Ph. D.), École de technologie supérieure
  • Maîtrise en génie de la production automatisée (MS), École de technologie supérieure
  • Bachelor in mechanical engineering, National Engineering School of Tunis

Publications

Articles

  • Nefzi, M., Hajji, A., & Ait Kadi, D. (2026). Evaluating cap-and-trade and green subsidies in promoting green investments for capital-constrained manufacturers with environmentally aware consumers. Journal of Cleaner Production, 538, 147416. DOI : 10.1016/j.jclepro.2025.147416
  • Assid, M., Gharbi, A., Hajji, A., & Pellerin, R. (2025). Coordinated production and opportunistic-preventive maintenance control policy in deteriorating hybrid manufacturing–remanufacturing systems. Flexible Services and Manufacturing Journal. DOI : 10.1007/s10696-025-09647-0
  • Schmiedel, S., Boujemaa, R., Rekik, M., & Hajji, A. (2025). From strategic to tactical carriers’ selection: A new SDDP algorithm to handle dynamic stochastic demand. Transportation Research Part C: Emerging Technologies, 177, 105174. DOI : 10.1016/j.trc.2025.105174
  • Neumann, A., Zghal, Y., Cremona, M. A., Hajji, A., Morin, M., & Rekik, M. (2025). A data-driven personalized approach to predict blood glucose levels in type-1 diabetes patients exercising in free-living conditions. Computers in Biology and Medicine, 190, 110015. DOI : 10.1016/j.compbiomed.2025.110015
  • Neumann, A., Hajji, A., Rekik, M., & Pellerin, R. (2025). I4Evosim: An educational platform simulating a competitive ETO market. IFAC-PapersOnLine, 59(10), 1101-1106. DOI : 10.1016/j.ifacol.2025.09.186
  • Dehghan Shoorkand, H., Nourelfath, M., & Hajji, A. (2024). A hybrid deep learning approach to integrate predictive maintenance and production planning for multi-state systems. Journal of Manufacturing Systems, 74, 397-410. DOI : 10.1016/j.jmsy.2024.04.005
  • Neumann, A., Hajji, A., Rekik, M., & Pellerin, R. (2024). Integrated planning and scheduling of engineer-to-order projects using a Lamarckian Layered Genetic Algorithm. International Journal of Production Economics, 267(4), 109077. DOI : 10.1016/j.ijpe.2023.109077
  • Deghan Shoorkand, H., Nourelfath, M., & Hajji, A. (2024). A hybrid CNN-LSTM model for joint optimization of production and imperfect predictive maintenance planning. Reliability Engineering & System Safety, 241, 109707. DOI : 10.1016/j.ress.2023.109707
  • Neumann, A., Hajji, A., Rekik, M., & Pellerin, R. (2024). Genetic algorithms for planning and scheduling engineer-to-order production: a systematic review. International Journal of Production Research, 62(8), 2888-2917. DOI : 10.1080/00207543.2023.2237122
  • Assid, M., Gharbi, A., & Hajji, A. (2023). Control policies of changeable manufacturing-remanufacturing systems using two failure-prone production facilities. International Journal of Advanced Manufacturing Technology, 125(1-2), 279-297. DOI : 10.1007/s00170-022-10664-8
  • Assid, M., Gharbi, A., & Hajji, A. (2023). Integrated control policies of production, returns' replenishment and inspection for unreliable hybrid manufacturing-remanufacturing systems with a quality constraint. Computers and Industrial Engineering, 176, 109000. DOI : 10.1016/j.cie.2023.109000
  • Deghan Shoorkand, H., Nourelfath, M., & Hajji, A. (2023). A deep learning approach for integrated production planning and predictive maintenance. International Journal of Production Research, 61(23), 7972-7991. DOI : 10.1080/00207543.2022.2162618
  • Neumann, A., Hajji, A., Rekik, M., & Pellerin, R. (2022). A model for advanced planning systems dedicated to the Engineer-To-Order context. International Journal of Production Economics, 252, 108557. DOI : 10.1016/j.ijpe.2022.108557
  • Hesabi, H., Nourelfath, M., & Hajji, A. (2022). A deep learning predictive model for selective maintenance optimization. Reliability Engineering & System Safety, 219, 108191. DOI : 10.1016/j.ress.2021.108191
  • Assid, M., Gharbi, A., & Hajji, A. (2021). Production planning and control of unreliable hybrid manufacturing-remanufacturing systems with quality-based categorization of returns. Journal of Cleaner Production, 312(1), 127800. DOI : 10.1016/j.jclepro.2021.127800
  • Corbett, J., Hajji, A., & Mellouli, S. (2021). Digital Twins Can Enable Smart, Agile, Sustainable Cities. Cutter Business Technology Journal, 34(1), 26-31. https://www.cutter.com/offer/digital-twins-can-enable-smart-agile-sustainable-cities
  • Assid, M., Gharbi, A., & Hajji, A. (2020). Production control of failure-prone manufacturing-remanufacturing systems using mixed dedicated and shared facilities. International Journal of Production Economics, 224(1), 107549. DOI : 10.1016/j.ijpe.2019.107549
  • Ndhaief, N., Nidhal, R., Hajji, A., & Bistorin, O. (2020). Environmental issue in an integrated production and maintenance control of unreliable manufacturing/remanufacturing systems. International Journal of Production Research, 58(14), 4182-4200. DOI : 10.1080/00207543.2019.1650212
  • Assid, M., Gharbi, A., & Hajji, A. (2020). Production and subcontracting control for an unreliable manufacturing system with setups. International Journal of Production Research, 58(12), 3570-3588. DOI : 10.1080/00207543.2019.1630776
  • Assid, M., Gharbi, A., & Hajji, A. (2019). Production planning of an unreliable hybrid manufacturing-remanufacturing system under uncertainties and supply constraints. Computers and Industrial Engineering, 136, 31-45. DOI : 10.1016/j.cie.2019.06.061
  • Berthaut, F., Pellerin, R., Hajji, A., & Perrier, N. (2019). The impact of project characteristics on the efficiency of activity overlapping in project scheduling. The Journal of Modern Project Management, 7(1).
  • Assid, M., Gharbi, A., & Hajji, A. (2019). Production and setup control policy for unreliable hybrid manufacturing-remanufacturing systems. Journal of Manufacturing Systems, 50, 103-118. DOI : 10.1016/j.jmsy.2018.12.004
  • Berthaut, F., Pellerin, R., Hajji, A., & Perrier, N. (2018). A Path Relinking-Based Scatter Search for the Resource-Constrained Project Scheduling Problem. International Journal of Project Organisation and Management, 10(1), 1-36. https://www.inderscience.com/info/inarticle.php?artid=90372
  • Hlioui, R., Gharbi, A., & Hajji, A. (2017). Joint Supplier Selection, Production and Replenishment of an Unreliable Manufacturing-Oriented Supply Chain. International Journal of Production Economics, 187, 53-67. DOI : 10.1016/j.ijpe.2017.02.004
  • Hajji, A., Pellerin, R., Gharbi, A., Léger, P. M., & Babin, G. (2016). Toward Valuable Prediction of ERP Diffusion in North American Automotive Industry: A Simulation Based Approach. International Journal of Production Economics, 175, 61-70. DOI : 10.1016/j.ijpe.2016.02.007
  • Ben-Salem, A., Gharbi, A., & Hajji, A. (2016). Production and Uncertain Green Subcontracting Control for an Unreliable Manufacturing System Facing Emissions. International Journal of Advanced Manufacturing Technology, 83(9), 1787-1799. DOI : 10.1007/s00170-015-7677-y
  • Feki, Y., Hajji, A., & Rekik, M. (2016). A hedging policy for carriers’ selection under availability and demand uncertainty. Transportation Research Part E: Logistics and Transportation Review, 85, 149-165. DOI : 10.1016/j.tre.2015.11.011
  • Hajji, A., Mellouli, S., & Rekik, M. (2016). La viabilité hivernale : vers une gestion plus intelligente des opérations. Transport Magazine, 53.
  • Hlioui, R., Gharbi, A., & Hajji, A. (2015). Integrated Quality Strategy in Production and Raw Material Replenishment in a Manufacturing-Oriented Supply Chain. International Journal of Advanced Manufacturing Technology, 81(1), 335-348. DOI : 10.1007/s00170-015-7177-0
  • Hlioui, R., Gharbi, A., & Hajji, A. (2015). Replenishment, Production and Quality Control Strategies in Three-Stage Supply Chain. International Journal of Production Economics, 166, 90-102. DOI : 10.1016/j.ijpe.2015.04.015
  • Ben-Salem, A., Gharbi, A., & Hajji, A. (2015). Environmental Issue in an Alternative Production-Maintenance Control for Unreliable Manufacturing System Subject to Degradation. International Journal of Advanced Manufacturing Technology, 77(1-4), 383-398. DOI : 10.1007/s00170-014-6454-7
  • Ben-Salem, A., Gharbi, A., & Hajji, A. (2015). An Environmental Hedging Point Policy to Control Production Rate and Emissions in Unreliable Manufacturing Systems. International Journal of Production Research, 53(2), 435-450. DOI : 10.1080/00207543.2014.946161
  • Assid, M., Gharbi, A., & Hajji, A. (2015). Joint Production, Setup and Preventive Maintenance Policies of Unreliable Two-Product Manufacturing Systems. International Journal of Production Research, 53(15), 4668-4683. DOI : 10.1080/00207543.2015.1030468
  • Assid, M., Gharbi, A., & Hajji, A. (2014). Joint Production and Setup Control Policies: An Extensive Study Addressing Implementation Issues Via Quantitative and Qualitative Criteria. International Journal of Advanced Manufacturing Technology, 72(5-8), 809-826. DOI : 10.1007/s00170-014-5721-y
  • Berthaut, F., Pellerin, R., Perrier, N., & Hajji, A. (2014). Time-Cost Trade-Offs in Resource-Constraint Project Scheduling Problems With Overlappping Modes. International Journal of Project Organisation and Management, 6(3), 215-236. http://www.inderscience.com/info/inarticle.php?artid=65259
  • Bouslah, B., Gharbi, A., Pellerin, R., & Hajji, A. (2013). Optimal Production Control Policy in Unreliable Batch Processing Manufacturing Systems With Transportation Delay. International Journal of Production Research, 51(1), 264-280. DOI : 10.1080/00207543.2012.676217
  • Hajji, A., Gharbi, A., & Pellerin, R. (2012). Joint production control and product quality decision making in a failure prone multiple-product manufacturing system. International Journal of Production Research, 50(13), 3661-3672. DOI : 10.1080/00207543.2012.671588
  • Hajji, A., Pellerin, R., Gharbi, A., Léger, P., & Babin, G. (2012). Dynamic Pricing Models for ERP Systems Under Network Externality. International Journal of Production Economics, 135(2), 708-715. DOI : 10.1016/j.ijpe.2011.10.004
  • Pellerin, R., Lemieux, A. A., Hajji, A., Léger, P. M., & Babin, G. (2012). Analyzing and Optimizing an ERP Segmentation Pricing Strategy Under Diffusion Patterns. Information and Communication Technologies for the Advanced Enterprise: An International Journal, 2, 13-28. https://www.researchgate.net/publication/251566362_Analyzing_and_Optimizing_an_ERP_Segmentation_Pricing_Strategy_under_Diffusion_Patterns
  • Gharbi, A., Hajji, A., & Dhouib, K. (2011). Production Rate Control of Unreliable Manufacturing Cell With Adjustable Capacity. International Journal of Production Research, 49(21), 6539-6557. DOI : 10.1080/00207543.2010.519734
  • Hajji, A., Gharbi, A., Kenne, J. P., & Pellerin, J. P. (2011). Production Control and Replenishment Strategy With Multiple Suppliers. European Journal of Operational Research, 208(1), 67-74. DOI : 10.1016/j.ejor.2010.08.010
  • Gharbi, A., Hajji, A., Mhada, F., Pellerin, R., & Malhamé, R. (2011). Integrated Product Specifications and Productivity Decision Making in Unreliable Manufacturing Systems. International Journal of Production Economics, 129(1), 32-42. DOI : 10.1016/j.ijpe.2010.08.008
  • Mhada, F., Hajji, A., Malhamé, R., Gharbi, A., & Pellerin, R. (2011). Production Control of Unreliable Manufacturing Systems Producing Defective Items. Journal of Quality in Maintenance Engineering, 17(3), 238-253. DOI : 10.1108/13552511111157362
  • Hajji, A., Gharbi, A., & Kenne, J. P. (2010). Joint Production and Supply Control in Three Levels Flexible Manufacturing Systems. Journal of Intelligent Manufacturing, 21(2), 195-204. DOI : 10.1007/s10845-008-0197-y
  • Saenz De Ugarte, B., Hajji, A., Pellerin, R., & Artiba, A. (2010). Engineering Change Order Processing in ERP Systems: An Integrated Reactive Model. European Journal of Industrial Engineering, 4(4), 394-412. DOI : 10.1504/EJIE.2010.035651
  • Hajji, A., Gharbi, A., Kenne, J. P., & Hidehiko, Y. (2009). Production and Changeover Control Policies of a Class of Failure Prone Buffered Flow-Shops. Production Planning & Control, 20(8), 785-800. DOI : 10.1080/09537280903232354
  • Saenz De Ugarte, B., Hajji, A., Pellerin, R., & Artiba, A. (2009). Development and Integration of Reactive Real-Time Decision Support System in the Aluminum Industry. Engineering Applications of Artificial Intelligence, 22(6), 897-905. DOI : 10.1016/j.engappai.2008.10.021
  • Hajji, A., Gharbi, A., & Kenne, J. P. (2009). Joint Replenishment and Manufacturing Activities Control in a Two Stages Unreliable Supply Chain. International Journal of Production Research, 47(12), 3231-3251. DOI : 10.1080/00207540701805612
  • Hajji, A., Gharbi, A., & Kenne, J. P. (2009). Joint Optimal Production / Changeover Policies for n Families of Products in Unreliable Supply Chains. Journal of Operations and Logistics, 2(4). https://www.researchgate.net/profile/Ali_Gharbi/publication/269519068_Joint_Optimal_production_changeover_policies_for_n_families_of_products_in_unreliable_supply_chains/links/5706c04008aeda83af537b26/Joint-Optimal-production-changeover-policies-for-n-fam
  • Gharbi, A., Kenne, J. P., & Hajji, A. (2006). Operational level-based policies in production rate control of unreliable manufacturing systems with set-ups. International Journal of Production Research, 44(3), 545-567. DOI : 10.1080/00207540500270364
  • Hajji, A., Gharbi, A., & Kenne, J. P. (2004). Production and set-up control of a failure-prone manufacturing system. International Journal of Production Research, 42(6), 1107-1130. DOI : 10.1080/00207540310001631575

Communications in a Conference with Proceedings

  • Neumann, A., Cremona, M. A., Hajji, A., Morin, M., & Rekik, M. (2025). Exploring the recent applications of artificial intelligence techniques for type-1 diabetes management. Operations Research and Artificial Intelligence in Healthcare Management.
  • Hajji, A. (2025). Stochastic multistage green investment of capital-constrained manufacturing system considering green subsidies and the cap-and-trade market. CIGI QUALITA MOSIM 2025, Troyes, France.
  • Neumann, A., Zghal, Y., Cremona, M. A., Morin, M., Hajji, A., Rekik, M., Moalla, E., & Mtiri, M. A. (2025). A comparative study of data-driven and personalized models trained to predict blood glucose levels of type-1 diabetes patients exercising in free-living conditions. CIRRELT Optimization Days 2025, Montréal, Canada.
  • Dehghan Shoorkand, H., Nourelfath, M., & Hajji, A. (2024). Integrating production and predictive maintenance planning model with Industry 4.0 technologies. 4th International conference on innovative research in applied science, Engineering and rechnology (IRASET), Fez, Morocco.
  • Neumann, A., Hajji, A., Rekik, M., & Pellerin, R. (2023). A Two-Level Optimization Approach For Engineer-To-Order Project Scheduling. 10th IFAC Conference on Manufacturing, Modelling, Management and Control MIM, Nantes, France.
  • Neumann, A., Hajji, A., Rekik, M., & Pellerin, R. (2023). A Didactic Review on Genetic Algorithms For Industrial Planning and Scheduling Problems. 10th International Federation of Automatic Control (IFAC) Conference, Nantes, France.
  • Neumann, A., Rekik, M., Morin, M., Hajji, A., & Pellerin, R. (2023). Ordonnancement dynamique et contrôle intelligent d'un robot industriel. CIGI Qualita MOSIM 2023, Québec, Canada.
  • Assid, M., Gharbi, A., & Hajji, A. (2023). Politique de commande de production intégrant l’approvisionnement et le contrôle de la qualité des retours pour les systèmes de fabrication-refabrication non fiables. CIGI Qualita Mosim 2023, Trois-Rivières, Canada.
  • Hesabi, H., Nourelfath, M., Hajji, A., & Jung, T. (2023). Power transformer fault prediction based on support vector machine. CIGI Qualita Mosim 2023, Trois-Rivières, Canada.
  • Neumann, A., Hajji, A., Rekik, M., & Pellerin, R. (2023). Dynamic scheduling and intelligent control of an industrial robot (Ordonnancement dynamique et contro^le intelligent d’un robot industriel). CIGI- QUALITA-MOSIM, Canada.
  • Hajji, A. (2022). A model for advanced planning systems dedicated to ETO context. Journées de l'optimisation.
  • Neumann, A., Hajji, A., Rekik, M., & Pellerin, R. (2022). A model for advanced planning systems dedicated to ETO context. Journées de l'optimisation, Montréal, Canada.
  • Assid, M., Gharbi, A., & Hajji, A. (2020). Commande optimale de systèmes hybrides de fabrication-refabrication utilisant des installations dédiée et flexible. MOSIM'20, conférence sur la Modélisation, l'Optimisation et la Simulation des systèmes de production de biens et de services.
  • Assid, M., Gharbi, A., & Hajji, A. (2019). Contrôle de production, d'approvisionnement et de qualité pour un système manufacturier non fiable. CIGI QUALITA 2019, Montréal, Canada.
  • Marif, A., & Hajji, A. (2019). Développement d'un Système de Pilotage par la Performance Cohérent et Réactive (SYPCo-R) - Une démarche procédurale. CIGI QUALITA 2019, Montréal, Canada.
  • Assid, M., Gharbi, A., & Hajji, A. (2018). Planification simultanée de la production, de la remise à neuf et du setup pour un système hybride non fiable. Actes de la 12e Conférence Internationale de Modélisation, Optimisation et Simulation (MOSIM 2018), Toulouse, France.
  • Welt, D., & Hajji, A. (2017). Critical Factors of Success for Implementing Business Intelligence Initiatives in Governemental Organizations. Proceedings of the 21st Conference of the International Federation of Operational Research Societies (IFORS 2017), Québec, Canada.
  • Marif, A., Abi-Zeid, I., & Hajji, A. (2017). Conception d'un Système d'Indicateurs de Performance Cohérent SIPCo : une approche intégrée. Actes de la 12e édition du Congrès International de Génie Industriel (CIGI 2017), Compiègne, France.
  • Assid, M., Gharbi, A., & Hajji, A. (2017). Planification simultanée de la production et de la sous-traitance de différents type de produits. Actes de la 12e édition du Congrès International de Génie Industriel (CIGI 2017), Compiègne, France.
  • Nefzi, M., Marzouki, A., Hajji, A., Mellouli, S., & Rekik, M. (2016). Performance-Based Maintenance Decision Support System (MDSS) in Snow Disposal Context. Proceedings of the 11th International Conference on Modeling, Optimization & Simulation (MOSIM 2016), Montréal, Canada.
  • Assid, M., Gharbi, A., & Hajji, A. (2016). Planification de la production de la maintenance préventive opportuniste pour un système manufacturier non fiable produisant deux types de produits. Actes de la 11e Conférence Francophone de Modélisation, Optimisation et Simulation (MOSIM 2016), Montréal, Canada.
  • Marzouki, A., Nefzi, M., Mellouli, S., Hajji, A., & Rekik, M. (2016). Transforming City Initiative into a Smart City Initiative: The Case of Winter Maintenance Operations. Proceedings of the 17th Annual International Conference on Digital Government Research, Shanghai, China (PRC).
  • El Fassi, H., Hajji, A., & Rekik, M. (2015). Stochastic Resolution Approach for Production and Remanufacturing Decisions. Proceedings of the 11th International Industrial Engineering Conference (CIGI 2015), Québec, Canada.
  • Assid, M., Gharbi, A., & Hajji, A. (2015). Étude de comparaison de politiques de commande pour un système manufacturier non fiable avec setup. Actes du 11e Congrès International de Génie Industriel (CIGI 2015), Québec, Canada.
  • Rached, H., Gharbi, A., & Hajji, A. (2015). Intégration des décisions de production, d'approvisionnement et de contrôle de qualité pour une chaîne d'approvisionnement à trois échelons. Actes du 11e Congrès International de Génie Industriel (CIGI 2015), Québec, Canada.
  • Hakimi, D., Montreuil, B., & Hajji, A. (2015). Simulating Physical Internet Enabled Interconnected Semi-Trailer Transportation Systems. Proceedings of the 2nd International Physical Internet Conference, Paris, France.
  • Assid, M., Gharbi, A., & Hajji, A. (2015). Production Planning and Opportunistic Preventive Maintenance for Unreliable One-Machine Two-Products Manufacturing Systems. Proceedings of the 15th IFAC Symposium on Information Control Problems in Manufacturing (INCOM 2015), Ottawa, Canada.
  • Hakimi, D., Montreuil, B., & Hajji, A. (2015). Toward Efficient Full Truck Loads Interconnected Transportation: A Quebec Wide Investigation. Proceedings of the 2015 International Business and Consumer Research Conference (IBCR 2015), Québec, Canada.
  • Dammak, H., Hajji, A., & Nour El Fath, M. (2014). Dynamic Production Planning in Unreliable Reconfigurable Manufacturing Systems. Proceedings of the 2nd IEEE International Conference on Logistics Operations Management (GOL'14), Rabat, Morocco.
  • El Fassi, H., Hajji, A., & Rekik, M. (2014). Stochastic Dual Dynamic Programming Approach for Lot Sizing Problem With Returns. Proceedings of the International Conference on Green Supply Chain (GSC 2014), Arras, France.
  • Rekik, M., & Hajji, A. (2014). Trade-Off Between Strategic and Operational Costs in Transportation Service Procurement. Proceedings of the International Business and Consumer Research Conference (IBCR 2014), Nabeul, Tunisia.
  • Feki, Y., Hajji, A., & Rekik, M. (2013). Short-term allocation of shipping contracts in strategic transportation procurement auctions. Informs annual meeting, Minneapolis, United States of America.
  • Boutheina, F., Hajji, A., & Rekik, M. (2013). Stochastic dual dynamic programming for transportation planning under demand uncertainty. Proceedings of the International Conference on Advanced Logistics and Transport (ICALT 2013), Sousse, Tunisia.
  • Soudani, C., Rekik, M., Hajji, A., & Hadj-Alouane, A. (2012). A Tabu Search Heuristic for a Sequence-Dependent Scheduling Problem on a Multi-State Machine. Proceedings of the 4th International Conference on Metaheuristic and Nature Inspired Computing (META 2012), Sousse, Tunisia.
  • Abdelkefi, F., Hajji, A., & Rekik, M. (2012). A Tabu Search Based Decision Support System for RMS Scheduling Problems. Proceedings of the 4th Internationale Conference on Metaheuristics and Nature Inspired Computing (META 2012), Sousse, Tunisia.
  • Mettichi, M., Feki, Y., Rekik, M., & Hajji, A. (2012). Conceptual Framework for Strategic and Operational Decision making for Carriers Selection. Proceedings of the 4th International Conference on Information Systems, Logistics and Supply Chain (ILS 2012), Québec, Canada.
  • Feki, Y., Hajji, A., & Rekik, M. (2012). Carriers Selection and Inventory Control Strategies in Two Stage Supply Chains. Proceedings of the 9th International Conference on Modeling, Optimization and SIMulation, Bordeaux, France.
  • Hajji, A., Gharbi, A., & Dellagi, S. (2012). Quality and Production Control in Multiple-Product Unreliable Manufacturing System. Proceedings of the 14th IFAC Symposium on Information Control Problems in Manufacturing (INCOM 2012), Bucharest, Romania.
  • Hajji, A., Gharbi, A., & Rekik, M. (2011). Decision Support System for Production and Supplier Selection in Unreliable Supply Chains. Proceedings of International Conference on Industrial Engineering and Systems Management - École nationale d'ingénieurs de Metz, Metz, France.
  • Berthaut, F., Grèze, L., Pellerin, R., Perrier, N., & Hajji, A. (2011). Optimal Resource-Constraint Project Scheduling With Overlapping Modes. Proceedings of International Conference on Industrial Engineering and Systems Management, Metz, France.
  • Hajji, A., Gharbi, A., & Artiba, A. (2011). Impact of random delay on replenishment and production control strategies. 4th International Conference on Logistics (IEEE), Hammamet, Tunisia.
  • Boucherit, J. B., Pellerin, R., Berthaut, F., & Hajji, A. (2010). A Genetic Algorithm for Solving Material Space and Resource Constrained Project Problems. Proceedings of the MITIP, Aalborg, Denmark.
  • Dhouib, K., Gharbi, A., & Hajji, A. (2010). Performance Evaluation of Mixed-Model Transfer Lines With Acyclic Product Arrivals and Random Lot Sizing. Proceedings of the 8th International Conference of Modeling and Simulation - MOSIM’10, Hammamet, Tunisia.
  • Hajji, A., Gharbi, A., & Pellerin, R. (2010). Joint Production Control and Product Quality Decision Making in a Failure Prone Manufacturing System. Proceedings of the 8th International Conference of Modeling and Simulation - MOSIM’10, Hammamet, Tunisia.
  • Pellerin, R., Hajji, A., & Gharbi, A. (2010). Integration of Production and Replenishment Execution Strategy in ERP Systems. Proceedings of the 3rd International Conference on Information Systems, Logistics and Supply Chain - ILS 2010, Casablanca, Morocco.
  • Lemieux, A.-A., Pellerin, R., Hajji, A., & Léger, P.-M. (2010). Analysing a Segmentation Pricing Strategy for ERP Systems under Diffusion Patterns. CENTERIS 2010, Viana do Castelo, Portugal.
  • Lemieux, A. A., Pellerin, R., Hajji, A., & Léger, P. M. (2009). Analysing a Segmentation Pricing Strategy for ERP Systems Under Diffusion Patterns. Proceedings of the CENTERIS 2010, Viana do Castelo, Portugal.
  • Baptiste, P., Beauregard, Y., Hajji, A., Maknoon, M. Y., Qazi, M. A., Pellerin, R., Sadr, J., & Saenz De Ugarte, B. (2009). Realized Value Optimization in Product Development Post-certification. Pratt&Whitney Third Montreal Industrial Problem Solving Workshop, A CRM-MITACS Event, Centre des recherches mathématiques, Université de Montréal, Montréal, Canada.
  • Hajji, A., Gharbi, A. ., & Kenne, J. P. (2009). Production and Changeover Control Policies of Failure Prone Buffered Flow-Shops (CD). Proceedings of the13th IFAC Symposium on Information Control Problems in Manufacturing INCOM, Moscow, Russia.
  • Hajji, A., Gharbi, A., Kenne, J. P., & Pellerin, R. (2009). Production Control and Replenishment Strategy With Multiple Suppliers. Proceedings of the Conférence internationale de génie industriel 2009, Tarbes, France.
  • Hajji, A., Pellerin, R., Gharbi, A., Léger, P. M., & Babin, G. (2009). Dynamic Pricing Models for ERP Systems Under Network Externality. Proceedings of the International Conference on Industrial Engineering and Systems Management, Montréal, Canada.
  • Mhada, F., Hajji, A., Malhamé, R., Pellerin, R., & Gharbi, A. (2009). Production Control of Unreliable Manufacturing Systems Producing Defective Items. Proceedings of the International Conference on Industrial Engineering and Systems Management, Montréal, Canada.
  • Hajji, A., Gharbi, A., & Artiba, A. (2009). Decision support system for production and supply control in unreliable supply chains. s. International Workshop: Logistique & Transport, Sousse, Tunisia.
  • St-Georges, K., Hajji, A., Pellerin, R., & Gharbi, A. (2008). Simulating the ERP Diffusion Behavior in Industrial Networks. Proceedings of the 3rd International Conference on Software Engineering Advances, Sliema, Malta.
  • Pellerin, R., Léger, P. M., Hajji, A., Gharbi, A., & Babin, G. (2008). Simulating the ERP Diffusion Behavior in Industrial Networks. Proceedings of the SAP, Palo Alto, United States of America.
  • Hajji, A., Gharbi, A., & Kenne, J. P. (2008). Operational Level-Based Policies in Supply Chain Environment. Proceedings of the MOSIM 08 (USB) - SUPMECA, France.
  • Pellerin, R., Saenz De Ugarte, B., Hajji, A., & Artiba, A. (2008). Integrating a Reactive Genetic Algorithm Model within the SAP Manufacturing Solution. Proceedings of the SAP Curriculum Congress, Atlanta, United States of America.
  • Saenz De Ugarte, B., Hajji, A., Pellerin, R., & Artiba, A. (2008). Engineering Change Order Processing in ERP Systems: An Integrated Reactive Model. Proceedings of the MOSIM 08 (USB) - SUPMECA, France.
  • Hajji, A., Gharbi, A., & Kenne, J. P. (2007). Joint Optimal Production / Setup Policies for Three Family Products in Unreliable Supply Chains. Proceedings of the IESM 2007, Beijing, China (PRC).
  • Hajji, A., Gharbi, A., & Kenne, J. P. (2006). Joint Production and Supply Control in Three Levels Flexible Manufacturing System. Proceedings of the12th Symposium on Information Control Problems in Manufacturing System (INCOM 2006), Sainte-Étienne, France.
  • Hajji, A., Gharbi, A., & Kenne, J. P. (2003). Contrôle de la production d'un système manufacturier non flexible sujet à des pannes aléatoires (CD). Actes du 5e Congrès international de génie industriel de Montréal, Montréal, Canada.
  • Hajji, A., Kenne, J. P., & Gharbi, A. (2003). Production Control of an Unreliable Manufacturing System With Setups: A Comparative Study. Proceedings of the IASTED International Conference: Intelligent Systems and Control, Salzbourg, Austria.
  • Hajji, A., Gharbi, A., & Kenne, J. P. (2003). Production and Set-up Planning of a Failure-Prone Manufacturing System. Proceedings of the International Conference on Industrial Engineering and Production management, Porto, Portugal.

Communications in a Conference Without Proceedings

  • Hajji, A. (2025). I4Evosim: An educational platform simulating a competitive ETO market. IAMOT 2025, Montréal, Canada.
  • Hajji, A. (2025). Multi-attribute bid construction for TL transportation services procurement. CIRRELT Optimization Days 2025, Montréal, Canada.
  • Hajji, A. (2025). Scheduling complex engineer-to-order projects using a hyper-graph attention network trained with multi-agent proximal policy optimization. CIRRELT Optimization Days 2025, Montréal, Canada.
  • Hajji, A. (2025). FI-LSTM predictionmodel for integrated production planning and predictive maintenance. CIRRELT Optimization Days 2025, Montréal, Canada.
  • Hajji, A. (2025). Politiques de commande des systèmes reconfigurables de fabrication-remanufacturing avec deux installations de production sujettes aux pannes. CIRRELT Optimization Days 2025, Montréal, Canada.
  • Hajji, A. (2025). A multi-agent reinforcement learning approach for planning and scheduling in reconfigurable manufacturing systems. CIRRELT Optimization Days 2025, Montréal, Canada.
  • Neumann, A., Zghal, Y., Cremona, M. A., Hajji, A., Morin, M., & Rekik, M. (2025). A data-driven personalized approach to predict blood glucose levels in type-1 diabetes patients exercising in free-living conditions. Journée de l optimisation / Optimization Days, Montréal, Canada.
  • Hajji, A. (2024). A comparative study of data-driven methods for blood glucose levels prediction in type-1 diabetes patients exercising in free-living conditions. DAC workshop 2024, Canada.
  • Hajji, A. (2024). Integrating production and predictive maintenance planning model with Industry 4.0 technologies. 4th International conference on innovative research in applied science, Engineering and rechnology (IRASET), Fez, Morocco.
  • Hajji, A. (2024). An educational game integrating commercial, planning, and scheduling decision-making in an engineer to-order competitive environmen. Optimization days 2024, Montréal, Canada.
  • Hajji, A. (2023). Innovative approaches to predictive maintenance in power transformers. CIGRE condition monitoring, diagnosis and maintenance. CMDM 2023 (7th edition), Bucarest, Romania.
  • Hajji, A. (2023). Le processus décisionnel à l'ère de la transformation numérique. Sciences humaines en action L’humain au coeur des sciences, Cegep Garneau, Québec, Canada.
  • Marif, A., Abi-Zeid, I., & Hajji, A. (2017). A methodology to design a coherent performance measurement system - An integrative approach. 21st Conference of the International Federation of Operational Research Societies (IFORS), Canada.
  • Ben Salem, A., Hajji, A., Gharbi, A., & Lamond, B. (2014). Production Activities Control Integrating Environmental Aspects. Global Product Sustainability Workshop, West Greenwich, United States of America.
  • Hajji, A., & Rekik, M. (2014). Stochastic Scheduling of Reconfigurable Production Lines. International Business and Consumer Research Conference (IBCR 2014), Nabeul, Tunisia.
  • Hajji, A., & Rekik, M. (2014). An SDDP-Based Solution Approach for Dynamic Transportation Planning under Demand Uncertainty. 56th CORS Annual Conference, Ottawa, Canada.
  • Hajji, A. (2014). Dynamic Production Planning in Unreliable Reconfigurable Manufacturing Systems. 15e congrès annuel de la Société française de recherche opérationnelle et d'aide à la décision (ROADEF 2014), Bordeaux, France.
  • Lamond, B., & Hajji, A. (2012). Impact of Environmental Policies on Production and Inventory Control Strategies in Unreliable Anufacturing Systems. Consumer Product Sustainability Workshop - University of Rhode Island, Kingston, United States of America.
  • Hajji, A. (2012). La solution SAP au service des étudiants et des professeurs. Intégration de la solution dans les cours de la FSA-ULaval. ASUG, Chapitre Québec - Université Laval, Québec, Canada.
  • Hajji, A. (2005). Operational Level-Based Policies in Production, Setup and Maintenance Control of Unreliable Manufacturing Systems. Workshop - HEC Montréal, Montréal, Canada.
  • Hajji, A. (2005). Operational and Tactical Level Planning Under Uncertainty. Workshop - HEC Montréal, Montréal, Canada.

Research Reports

  • Nefzi, M., Marzouki, A., Hajji, A., Mellouli, S., & Rekik, M. (2016). Évaluation de la performance des opérations de collecte de neige : une synthèse des pratiques existantes. NSim Technologies.
  • Boucherit, J.-B., Pellerin, R., Hajji, A., & Perrier, N. (2011). Une revue des méthodes pour l’ordonnancement de projets avec contrainte de ressources ou de matériel. CIRRELT http://www.fsa.ulaval.ca/sirul/2011-011.pdf.
  • Berthaut, F., Pellerin, R., Perrier, N., & Hajji, A. (2011). Time-cost trade-offs in resource-constraint project scheduling problems with overlapping modes. CIRRELT https://www.cirrelt.ca/DocumentsTravail/CIRRELT-2011-10.pdf.
  • Berthaut, F., Grèze, L., Pellerin, R., Perrier, N., & Hajji, A. (2011). optimal resource-constraint project scheduling with overlapping modes. CIRRELT https://www.cirrelt.ca/DocumentsTravail/CIRRELT-2011-09.pdf.
  • Lemieux, A. A., Pellerin, R., Hajji, A., Léger, P. M., & Babin, G. (2010). Analysing a Segmentation Pricing for ERP Systems under Diffusion Patterns. Laboratoire ERTsim.

Working Papers

  • Neumann, A., Hajji, A., Rekik, M., & Pellerin, R. (2022). Integrated planning and scheduling of engineer-to-order projects using a Lamarckian layered genetic algorithm. CIRRELT Working Paper Series.
  • Boujemaa, R., Rekik, M., & Hajji, A. (2022). An SDDP-based solution approach for carriers' selection and shipments assignment under dynamic stochastic demand. CIRRELT Working Paper Series.
  • Boujemaa, R., Rekik, M., & Hajji, A. (2022). Operationalizing auction-based strategic cariers' selection in distribution networks. CIRRELT Working Paper Series.
  • Neumann, A., Hajji, A., Rekik, M., & Pellerin, R. (2021). A model for Advanced Planning Systems dedicated to the Engineer-To-Order context. 25. CIRRELT-2021-44. CIRRELT Working Paper Series.
  • Berthaut, F., Pellerin, R., Hajji, A., & Perrier, N. (2014). A Path Relinking-Based Scatter Search for the Resource-Constrained Project Scheduling Problem. CIRRELT Working Paper Series.
  • Berthaut, F., Grèze, L., Pellerin, R., Perrier, N., & Hajji, A. (2011). Optimal Resource-Constraint Project Scheduling With Overlapping Modes. CIRRELT Working Paper Series.
  • Berthaut, F., Pellerin, R., Perrier, N., & Hajji, A. (2011). Time-Cost Trade-Offs in Resource-Constraint Project Scheduling Problems With Overlapping Modes. CIRRELT Working Paper Series.
  • Boucherit, J. B., Pellerin, R., Hajji, A., & Perrier, N. (2011). Une revue des méthodes pour l'ordonnancement de projets avec contraintes de ressources ou de matériel. CIRRELT Working Paper Series.

Other researchers

Other researchers

The FSA ULaval Experience

Student space (in French only)

Consult your personalized student space: your individual gateway to your academic programs, courses, exam schedules and all the resources available at FSA ULaval.

Consult my space

Platform for alumni

Join the vast network of FSA ULaval alumni around the world! Get back in touch with former classmates, enjoy the benefits of mentoring and gain access to exclusive activities and training sessions.

Log in

Staff Intranet (in French only)

FSA ULaval Zone

Stay on top of the latest news about the organization and internal activities.

Go to the Zone