Fig 1.
Later arrival time lead to a bigger replenishment quantity.
Fig 2.
Illustration of the dual sourcing inventory routing problem.
Fig 3.
Interactions between the master-problem and sub-problems.
Fig 4.
An illustration of the ALNS algorithm.
Table 1.
Logistic cost gaps between dual-sourcing and single replenishment modes.
Table 2.
Logistic cost gaps between routing with/without considering inventory cost.
Table 3.
Logistic cost and replenishment quantity gaps between budget and box uncertainty sets.
Fig 5.
(a) Routing decisions on A-n32. (b) Routing decisions on B-n78.
Table 4.
Logistic cost on instance A-n32 with different removal rate and reaction factor.
Table 5.
Logistic cost on instance B-n78 with different removal rate and reaction factor.
Fig 6.
Weight of removal/insertion operators in 3000 iterations on instance A-n32.
Table 6.
Performance of operators (%IBest/%Usage).
Table 7.
Performance of ALNS without * operator (Gaps).
Table 8.
Comparing ALNS with GA.