Situation reactive approach to Vendor Managed Inventory problem

Choonjong Kwak, Jin Sung Choi, Chang Ouk Kim, Ick Hyun Kwon

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)


In this research, we deal with VMI (Vendor Managed Inventory) problem where one supplier is responsible for managing a retailer's inventory under unstable customer demand situation. To cope with the nonstationary demand situation, we develop a retrospective action-reward learning model, a kind of reinforcement learning techniques, which is faster in learning than conventional action-reward learning and more suitable to apply to the control domain where rewards for actions vary over time. The learning model enables the inventory control to become situation reactive in the sense that replenishment quantity for the retailer is automatically adjusted at each period by adapting to the change in customer demand. The replenishment quantity is a function of compensation factor that has an effect of increasing or decreasing the replenishment amount. At each replenishment period, a cost-minimizing compensation factor value is chosen in the candidate set. A simulation based experiment gave us encouraging results for the new approach.

Original languageEnglish
Pages (from-to)9039-9045
Number of pages7
JournalExpert Systems with Applications
Issue number5
Publication statusPublished - 2009 Jul

Bibliographical note

Funding Information:
This work was supported by Yonsei University Research Fund of 2002.

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Computer Science Applications
  • Artificial Intelligence


Dive into the research topics of 'Situation reactive approach to Vendor Managed Inventory problem'. Together they form a unique fingerprint.

Cite this