Research Article
A Study on Online Scheduling Problem of Integrated Order Picking and Delivery with Multizone Vehicle Routing Method for Online-to-Offline Supermarket
Table 1
An overview of the online IPDP articles with parallel-machine production environment1.
| | Literature | Production process | Vehicle | Delivery | Objective | Competitive ratio | | Number of vehicles | Vehicle capacity |
| | Liu and Lu [8] | Direct | Unlimited | Unlimited | idd | | |
| | Liu and Lu [9] | Batch unbounded | Unlimited | Unlimited | idd | | 1 + 2/ |
| | Tian et al. [10] | Drop-line batch unbounded | Unlimited | Unlimited | idd | | 1+ |
| | Han et al. [11] | Direct | One | Unlimited | Direct | | | | Direct | Unlimited | Unlimited | Direct | | | | Direct | One | Limited | Direct | | 2 | | Direct | Unlimited | Limited | Direct | | 2 |
| | Zhang et al. [3] | Batch bounded | Unlimited | Limited | Direct | | 2 |
| | This study | Batch bounded | Unlimited | Limited | Routing | | |
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1: the round-trip delivery time; : the number of machines; : the positive root of the equation ; : vehicle capacity. |
