IWLS 2011
International Workshop on Lot Sizing

August 24th - 26th, 2011
Istanbul, Turkey


Social Events Schedule:

Welcome Dinner
  • August 23rd, 2011 7:00-9:00 pm
  • About $50/person
Bosphorus Dinner Cruise

Detailed program:

Proceedings of the 2nd International Workshop on Lot Sizing

Time Wednesday, August 24
8:30-9:00 Welcome
9:00-9:30  Opening Session
9:30-10:50 Capacitated Lotsizing and Scheduling: tackling sequence dependent setups using column generation
Luis Guimaraes, Diego Klabjan, Bernardo Almada-Lobo
Capacitated lot sizing with parallel machines, sequence-dependent setups and common setup operators: A practical case
Horst Tempelmeier, Sascha Herpers,
Karina Copil
10:50-11:20 Coffee Break
11:20-12:40 Hybrid approaches for the capacitated lot sizing problem with setup carryover and backordering
Hacer Guner Goren, Semra Tunali, Raf Jans
A hybrid heuristic for the production-routing problem
Yossiri Adulyasak, Jean-François Cordeau, Raf Jans
12:40-14:10 Lunch
14:10-16:10 Finding pareto optimal solutions for the multi-objective economic lot-sizing problem
Wilco van den Heuvel, H. Edwin Romeijn, Dolores Romero Morales, Albert P.M. Wagelmans
The economic lost sizing problem with lost sales and bounded inventory
Hark-Chin Hwang, Wilco van den Heuvel, Albert P.M. Wagelmans
A holding cost bound and a new heuristic for the economic lot-sizing problem
Wilco van den Heuvel, Albert P.M. Wagelmans
16:10-16:40 Coffee Break
16:40-18:00 The economic lot-sizing problem with an emission constraint
Mathijn Retel Helmrich, Wilco van den Heuvel, Albert Wagelmans, Raf Jans
Analysis of Green Lot-Sizing Problems
Nabil Absi, Stephane Dauzere-Peres, Safia Kedad-Sidhoum, Bernard Penz, Christophe Rapine
  Thursday, August 25
8:30-9:50 A maritime inventory routing problem
Agostinho Agra, Henrik Andersson, Marielle Christiansen, Laurence Wolsey
A Fixed-charge transportation view for solving big-bucket multi-item lot-sizing
Mathieu Van Vyve
9:50-10:20 Coffee Break
10:20-12:20 Improvements of an integrated approach for lot-sizing and detailed scheduling
Edwin Gomez, Riad Aggoune , Stephane Dauzere-Peres 
The block planning approach for continuous time based lot sizing and scheduling: A change of paradigm?
Hans-Otto Günther 
Combining the principles of Variable Neighborhood Decomposition Search and Fix&Optimize heuristic to solve multi-level lot-sizing and scheduling problems
Florian Seeanner, Bernardo Almada-Lobo, Herbert Meyr
12:20-14:00 Lunch
14:00-15:20 Dynamic Probabilistic Lot-Sizing with Service Levels
S., Goel and Simge Küçükyavuz
  Dynamic capacitated lot sizing with random demand subject to a backlog/waiting-time oriented  d-service level measure
Stefan Helber, Florian Sahling, Katja Schimmelpfeng
15:20-15:50 Coffee Break
15:50-17:10 Primal and dual bounds for long-horizon lot size problems with tight capacity constraints
Silvio Araujo, Bert De Reyck, Zeger Degraeve,Ioannis Fragkos, Raf Jans
The impact of modeling on robust inventory management under demand uncertainty
Oğuz Solyalı, Jean-François Cordeau, Gilbert Laporte
  Friday, August 26
8:30-9:00 Discussion: Next meeting
9:00-11:00 Multilevel capacitated lot sizing and scheduling: A model overview and comparison
Renate Traxler and Christian Almeder
A polynomial time algorithm for the multi-stage lot-sizing problem with production capacities
Hark-Chin Hwang, Hyun-soo Ahn, Kaminsky Philip
New Algorithms and New Questions for the Multiple Stage Lot Sizing Problem
Natalie Simpson
11:00-11:30 Coffee Break
11:30-12:50 Economic Lot Sizing Problem with Production Capacities and Perishable Items
Mehmet Onal, H. Edwin Romeijn, Wilco van den Heuvel
Integrating Lot Sizing and Scheduling with the Vehicle Routing Problem: A special look into perishable products
Anderson Meneses, Pedro Amorim, Bernardo Almada-Lobo, Christian Almeder
12:50-14:30 Lunch