1. Activités de recherche au LGI Céline Gicquel

2. Supply chain planning matrix ProcurementProductionDistributionSales Supply Network Design Master Planning Materials Requirements Planning Production Planning Scheduling Distribution Planning Transport Planning Demand Planning Demand Fulfilment long term mid term short term

3. Short-term production planning Resource A production resource with a limited capacity and significant startup operations Finished products Raw materials Customer demand

4. Basic lot-sizing problem Simple example  1 single product, 10 planning periods  Production capacity: 50 units/period  Setup costs = 500€ ; Inventory holding costs=2€/unit/period  Demand: t12345678910 DtDt 03000200000100 Objective 1: minimize setup costs 12345678910 50 Setup costs=500€; Inventory holding costs=1420€

5. Basic lot-sizing problem Simple example  1 single product, 10 planning periods  Production capacity: 50 units/period  Setup costs = 500€ ; Inventory holding costs=2€/unit/period  Demand: t12345678910 DtDt 03000200000100 Objective 2: minimize inventory holding costs Setup costs=1500€; Inventory holding costs=100€ 12345678910 302050

6. Basic lot-sizing problem Simple example  1 single product, 10 planning periods  Production capacity: 50 units/period  Setup costs = 500€ ; Inventory holding costs=2€/unit/period  Demand: t12345678910 DtDt 03000200000100 Objective 3: minimize setup and inv. holding costs Setup costs=1000€; Inventory holding costs=220€ 12345678910 50

7. PhD thesis Studied extensions Multiple products Multiple resources Sequence-dependent changeovers  Difficult deterministic optimization problems Solution approach Mixed integer linear programming Tight formulations + solver

8. On-going work Lot-sizing with parallel resources Valid inequalities Heterogenous resources Collaboration with Pr Wolsey European project CAP-SCHED Batch scheduling Simulation+optimization Multi-agent system