Embedded Files
Problem description
Problem description
Consider an online retailer with several category warehouses in a region. Each warehouse has order fulfillment ability and can act as a consolidation warehouse. Each order that contains multiple SKUs can be split into suborders according to the storage of SKUs in each warehouse. For each SKU in each order, it can be shipped directly from its warehouse to the customer or transshipped to another consolidation warehouse for consolidation first, packed with other SKUs and shipped to the customer. With the objective of minimizing the total order fulfillment cost, the following three questions need to be answered:
1) Split fulfillment or package consolidation for each SKU in the split orders？
2) For package consolidation for a multi-item order, which warehouse(s) should be chosen as the consolidation warehouse(s) for consolidation and which SKU(s) in the split orders should be transshipped to which warehouse?
3) Which SKU(s) should be packed in one package?
Related research
Related research
Yuankai Zhang, Wei-Hua Lin, Minfang Huang, Xiangpei Hu. Multi-warehouse package consolidation for split orders in online retailing. European Journal of Operational Research. 2019, Accepted.
Data Set Download
Data Set Download
Name instances:
The instances are named according to the problem set ID and the instance ID.
There are two types of problem sets, 10 regular problem sets and 4 large-scale problem sets.
For each problem set, there are 10 instances.
Therefore, there are 140 instances in total.
Filename: ProblemSetID_InstanceID
e.g., Regular2_R1 is the first instance for the regular problem set 2.
Large1_L2 is the second instance for the large-scale problem set 1.
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Instance information:
Each instance contains the following files:
1) Warehouse
(DataID, WarehouseType, WareID, FShipCost, VShipCost, ShipTime)
2) BetweenWarehouses
(DataID, WarehouseType, WareID1, WareID2, TranCost, TranTime)
3) Skus
(DataID,SkuID,Weight,Volume,Warehouse)
4) SkusConflict
(DataID,SkusConflictType,SkuID1,SkuID2,Conflict)
5) Orders
(DataID,OrderDataType,OrderID,SkuCount,SkuID,OrderType,SkuNumber)
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(https://drive.google.com/file/d/1f1nfPRuMWh2mcEV6ASHyqJrHcNXKcYgn/view)
Any question please contact:
Yuankai Zhang
ykzhang@mail.dlut.edu.cn; ykzhang6635@126.com
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