비안정적인 고객수요를 갖는 공급사슬에서의 적응형 재고관리 모델

Adaptive Inventory Control Models in a Supply Chain with Nonstationary Customer Demand

  • 백준걸 (인덕대학 산업시스템경영과) ;
  • 김창욱 (연세대학교 정보산업공학과) ;
  • 전진 (고려대학교 정보통신기술공동연구소)
  • Baek, Jun-Geol (Department of Industrial System Engineering, Induk Institute of Technology) ;
  • Kim, Chang Ouk (Department of Information and Industrial Engineering, Yonsei University) ;
  • Jun, Jin (Research Institute for Information and Communication Technology, Korea University)
  • 발행 : 2005.06.30

초록

Uncertainties inherent in customer demand patterns make it difficult for supply chains to achieve just-in-time inventory replenishment, resulting in loosing sales opportunity or keeping excessive chain wide inventories. In this paper, we propose two intelligent adaptive inventory control models for a supply chain consisting of one supplier and multiple retailers, with the assumption of information sharing. The inventory control parameters of the supplier and retailers are order placement time to an outside source and reorder points in terms of inventory position, respectively. Unlike most extant inventory control approaches, modeling the uncertainty of customer demand as a stationary statistical distribution is not necessary in these models. Instead, using a reinforcement learning technique, the control parameters are designed to adaptively change as customer demand patterns change. A simulation based experiment was performed to compare the performance of the inventory control models.

키워드

참고문헌

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