Problem definition: Online retailers often receive customer orders comprising several
products of differing origins. To fulfill these orders, retailers must ship multiple parcels from …

The rapid growth of e-commerce in the recent pandemic is driven by the wide adoption of
digitization, extensive use of smartphones, affordable internet services, and the convenience …

Real-time decisions are usually irrevocable in many contexts of online decision-making.
One common practice is delaying real-time decisions so that the decision-maker can gather …

Problem definition: We study the dynamic fulfillment problem in e-commerce, in which
incoming (multi-item) customer orders must be immediately dispatched to (a combination of) …

The increasingly flourishing e-commerce has prompted e-retailers to implement a two-layer
distribution network consisting of regional and forward distribution centers (FDCs) to reduce …

We investigate a joint inventory placement and online fulfillment problem. At the beginning,
the inventory of a single item is distributed to different warehouses. Then, at each period, an …

We consider continuous-review assemble-to-order (ATO) systems with a general bill of
materials (BOM) and general leadtimes. ATO systems have the advantage of mass …

Simulating a single trajectory of a dynamical system under some state-dependent policy is a
core bottleneck in policy optimization algorithms. The many inherently serial policy …

E-commerce retailers have a buffer to “hold” some orders before dispatching them for
warehouse picking, which has benefits such as consolidating with another order placed by …

We investigate an online edge‐weighted bipartite matching problem with general capacity
constraints. In this problem, the resources are offline and nonreplenishable with different …