Deep reinforcement learning with instance-invariant baseline regularization for joint retrieval and relocation scheduling in multi-deep warehouses. - Funing Li; Jifeng Zhou; Yuan Tian 014; Ruben Noortwyck; Aya Ounissi; Bingyuan Hong; Kai Wen; Qi Kang; Robert Schulz (Expert Syst. Appl., 2026)