“A Branch-and-Cut Algorithm for an Assembly Routing Problem”, with M. Chitsaz and J.-F. Cordeau, Tenth International Workshop on Lot Sizing (IWLS 2019), Paris, France, 21-23 August 2019.

“Flexibility in Production Planning”, GERAD Seminar, Montreal, October 23, 2018,

“Lot sizing with simultaneous backlog and lost sales”, with M. Arsenault, Ninth International Workshop on Lot Sizing (IWLS 2018), Brazil, 22-24 August 2018.

“Lot sizing with simultaneous backlog and lost sales”, with M. Arsenault, Optimization Days, Montréal, May 2018.

“The role of flexibility in Supply Chain Risk Management” (in French), Carrefour Logistique, HEC Montréal, November 24, 2017.

“A unified decomposition heuristic for the assembly, inventory and production routing problem”, with M. Chitsaz and J.-F. Cordeau, Eighth International Workshop on Lot Sizing (IWLS 2017), Glasgow, 23-25 August 2017 (23 August 2017).

“Integrated supply chain planning” (in French), Inaugural lecture, HEC Montréal, January 26, 2017.

“Tutorial: Dantzig-Wolfe decomposition for lot-sizing problems”, with Z. Degraeve, Seventh International Workshop on Lot Sizing (IWLS 2016), Hannover, 22-25 August 2016 (22 August 2016).

“A capacitated multi-item lot sizing problem with stochastic setup times”, with D. Tas, M. Gendreau, O. Jabali, INFORMS Meeting, Philadelphia, 1-4 November 2015 (November 4, 2015).

“Heuristic methods for a capacitated lot sizing problem with stochastic setup times”, with D. Tas, M. Gendreau, O. Jabali, Sixth International Workshop on Lot Sizing (IWLS 2015), Montreal, 24-26 August 2015 (26 August 2015).

“An analysis of formulations for the capacitated lot sizing problem with setup cross-over”, with S. de Araujo and D. Fiorotto, CORS/INFORMS International Conference, Montréal, Canada, June 14-17, 2015. (June 17, 2015)

“Recent Advances in Solving the Production Routing Problem”, with Y. Adulyasak and J.-F. Cordeau,
ERIM / Economics Institute Workshop, Rotterdam, October 4, 2013

“Reoptimization Capabilities of Benders Decomposition for Production Routing under Demand Uncertainty”, with Y. Adulyasak and J.-F. Cordeau,
Fourth International Workshop on Lotsizing, Brussels, August 26-28, 2013.

“The Stochastic Production Routing Problem”, with Y. Adulyasak and J.-F. Cordeau, EURO/INFORMS 26th Conference on Operational Research, Rome, Italy, July 1-4, 2013.

“Symmetry breaking in MIP optimization problems”
CIRRELT, Montréal, March 28, 2013.

“Optimization Based Adaptive Large Neighborhood Search (ALNS) for the Production Routing Problem”, with Y. Adulyasak and J.-F. Cordeau, INFORMS Meeting, Phoenix, 14-17 October 2012 (15 October 2012).

“Improved Column Generations for Clustering Problems”, with J. Desrosiers,
Journée de la recherche, HEC Montréal, April 2012.

“A hybrid heuristic for the production routing problem”, with Y. Adulyasak and J.-F. Cordeau, Second International Workshop on Lotsizing, Istanbul, Turkey, August 2011.

“Efficient Symmetry Breaking Formulations for the Job Grouping Problem”, with J. Desrosiers,
Optimization Days, Montreal, Canada, May 2-4, 2011.

“Improved Formulations for Symmetry Breaking: The Job Grouping Problem”, with J. Desrosiers,
Journée de la recherche, HEC Montréal, April 2011.

“Binary clustering problems: symmetric, asymmetric and decomposition formulations”, with Jacques Desrosiers,
CORE, Université Catholique de Louvain, Belgium, March 29, 2011;
Journée de la recherche, HEC Montréal, April 2010.

“Binary Clustering Problems: Symmetric, Asymmetric and Decomposition Models”, with J. Desrosiers,
INFORMS, Austin, TX, USA, November 7-10, 2010;
Optimization Days, Montreal, Canada, May 10-12, 2010.

“Formulations and a Branch-and-Cut algorithm for a production-distribution-routing problem”, with M. Ruokokoski, O. Solyali, J.F. Cordeau and H. Süral,
International Workshop on Lotsizing, Gardanne, France, August 2010.

“Dynamic Lotsizing: Introduction and decomposition approaches”,
GERAD, Montréal, November 2009.

“Symmetry Breaking constraints in MIP’s”, INFORMS Meeting, Washington DC, October 2008.

“A classification of MIP’s for Dantzig-Wolfe decomposition”,
Workshop on Column Generation, Aussois, France, June 2008.

“Breaking symmetry in MIP’s: parallel machine lotsizing”, invited seminars at
CORE, Louvain-La-Neuve, Belgium, March 2008;
University of Antwerp, Belgium, April 2008;
Econometrics Institute, Erasmus University, The Netherlands, May 2008.

“Solving production planning problems using decomposition approaches”, Research Seminar, John Molson School of Business, Concordia University, Montreal, Canada, April 2007

“Solving industrial lot sizing problems using decomposition approaches”, Research seminar, McGill University, Montreal, Canada, December 2006

“Solving Integer Programming Problems Using Symmetry Breaking Constraints”, Research seminar, McGill University, Montreal, Canada, October 2006

“Symmetry breaking in IP models: Parallel machine lotsizing”, INFORMS Meeting, San Francisco, November 2005.

“Lot Sizing on Parallel Machines”, Optimization Days, Montreal, Canada, May 2005.

“Combining Column Generation and Lagrangian Relaxation”, with D. Huisman, International Colloquium for the 25th anniversary of GERAD, Montreal, Canada, May 2005.

“Decomposition Approaches for the Capacitated Lot Sizing Problem”, with Z. Degraeve, Research Seminar, GERAD, Montreal, Canada, August 2003.

“A Comparison of Lower Bounds for the Capacitated Lot Sizing Problem”, with Z. Degraeve, EURO/INFORMS Meeting, Istanbul, July 2003.

“Strong Lower Bounds for the Capacitated Lot Sizing Problem with Set Up Times”, with Z. Degraeve, INFORMS Meeting, San José, November 2002.

“Two Alternative Decomposition Reformulations for the Capacitated Lot Sizing Problem”, with Z. Degraeve, Research Seminar, Erasmus University, The Netherlands, June 2002.

“Solving Industrial Lot Sizing Problems: A Column Generation and Branch-and-Price Approach”, with Z. Degraeve, Research Seminar, Erasmus University, The Netherlands, March 2002.

“Solving an Industrial Lot Sizing Problem”, with Z. Degraeve, Research Seminar, London School of Economics, March 2002.

“A Branch-and-Price Algorithm for the Capacitated Lot Sizing Problem”, with Z. Degraeve, INFORMS Meeting, Miami, November 2001.

“A Strategic Product Range Split Problem”, with Z. Degraeve and L. Schepens, Research Seminar, London Business School, March 2001.

“A Production Planning Problem in the Tire Industry”, with Z. Degraeve, INFORMS Meeting, San Antonio, November 2000.

“An Algorithm for the Multi-Item Lot Sizing Problem with Setup Times at Solideal”, with Z. Degraeve, 14th International ORBEL Conference, Belgium, January 2000.

“Tire Production Scheduling at Solideal”, with Z. Degraeve, INFORMS Meeting, Philadelphia, November 1999.

“Alternative Formulations for a Layout Problem in the Fashion Industry”, with Z. Degraeve and W. Gochet, 13th International ORBEL Conference, Belgium, January 1999.