Research Article

Joint Optimization of Item and Pod Storage Assignment Problems with Picking Aisles’ Workload Balance in Robotic Mobile Fulfillment Systems

Algorithm 2

Pod selection mechanism.
Require: P (population), N (population size), (set of orders)
(1)Step 1: Construct an initial pod combination by the greedy strategy
(2)for ( = 1; ; ++) do
(3)while
(4)   ← Greedy_strategy (P, N)
(5)end while
(6)Step 2: Improve the solution
(7)if () then
(8)   ← SwapPod ()
(9)   ← DeletePod ()
(10)end if
(11)end for