E-commerce retailers face the challenge to assemble large numbers of time-critical picking
orders each consisting of just a few order lines with low order quantities. Traditional picker-to …

Warehouses deliver labor-intensive services to customers. Underperformance may result in
high costs and unsatisfied customer demand. New market developments force warehouses …

Market trends such as globalisation, increasing customer expectations, expensive industrial
land and high labour costs cause a need for efficient order picking systems in practice …

Warehouses are an inevitable component in any supply chain and a vividly investigated
object of research. Much attention, however, is absorbed by warehousing systems dedicated …

Order Batching is a family of optimization problems related to the process of picking items in
a warehouse as part of supply chain management. Problems classified into this category are …

In this work we investigate the problem of order batching and picker routing in storage areas.
These are labour and capital intensive problems, often responsible for a substantial share of …

This paper proposes a new metaheuristic routing algorithm for the minimization of the travel
distance of pickers in manual warehouses. The algorithm is based on the ant colony …

Given a set of customer orders and a routing policy, the goal of the order-batching problem
(OBP) is to group customer orders to picking orders (batches) such that the total length of all …

In this paper, order assignment, order batching and picker routing problems with multiple
pickers in a wave picking warehouse of a major US third party logistics company is studied …

Recently, order picking routing (OPR) for robots inside modern warehouses have become
one of the most challenging problems. The process of OPR can be formulated as a …