The 15th edition of the International Workshop on Lot Sizing will be held in Groningen, The Netherlands. The Workshop is organised by the University of Groningen and Erasmus University Rotterdam.

As in the previous years, the goal of the workshop is to cover recent advances in lot sizing: new approaches for classical problems, new relevant problems, integration of lot sizing with other problems such as scheduling, distribution or vehicle routing, presentation of case studies, etc. We especially welcome submissions that focus on sustainability or renewable energy. The workshop will also aim at favoring exchanges between researchers and enhancing fruitful collaboration.

Important dates

• Short abstract (up to 1,000 characters) submission deadline: 15 June 2025
• Confirmation of accepted abstracts: 22 June 2025
• Extended version of accepted abstract submission deadline: 15 July 2025
• Registration deadline: 15 July 2025

IWLS 2025 has been generously supported by the following organizations.