報告主題：面向高效應急響應的虛拟庫存池和事件檢索（Virtual Stockpile Pooling and On-Event Retrieval for Efficient Emergency Response）

報告時間：9月18日（周一）下午3:00

報告地點：旭日樓310教室

主持人：沈濱 教授

報告人：劉方 副教授

報告簡介：

The traditional approach for maintaining stockpiles in the supply chain is static stockpiles (SS) where
each warehouse is assigned a static inventory threshold and only the inventory above the threshold can be used to satisfy the regular demand. This approach circulates the stockpiles via the supply chain and hencereduces waste. Alternatively, virtual stockpile pooling (VSP) dynamically adjusts the thresholds among the warehouses. However, these two approaches omit the retrieval process. In this paper, we analyze the VSP withdynamic retrieval (VSPR) and benchmark it with VSP and SS with retrieval (SSR). Under SSR, allocatingall the emergency supplies to the warehouse with the least long-run average operating cost is optimal. UnderVSPR, we solve a three-stage optimization problem and derive the closed-form solution at the last two stages.The solutions can be obtained from an easy-to-execute finite-step method. Specifically, the optimal retrievalpolicy can be obtained from a greedy procedure. The optimal reallocation policy can be characterized byranking the inventory segments rather than ranking the warehouses under VSP. The optimal order policy isa base stock policy. We also find that the emergency supplies are only reserved at some warehouses i.e., thekey warehouses and identify conditions under which a warehouse is a key warehouse. In a case study, VSPRsaves up to 13.8021% operational cost and improves service levels 4.9026% at most. Other than emergencyresponse, VSPR can also be applied to supply chain management, healthcare operations, energy and naturalresource management, and military defense.

報告人簡介：

劉方，中國科學院大學經濟管理學院副教授。博士畢業于美國杜克大學Fuqua商學院運營管理方向，本科畢業于北京大學數學學院。主要研究方向有供應鍊管理，機制設計，人道主義救援，可持續發展等。現在承擔百人計劃B項目并曾獲CSAMSE會議best paper award二等獎MSOM data research challenge特獎。論文主要發表在國際頂級期刊UTD期刊Operations Research, Manufacturing & Service Operations Management, Production Operations Management等。