3 papers
math.OC2026
Risk or Replace: Efficient Asymptotics for Data-Driven Maintenance
Poulad Moradi, Joachim Arts, Melvin Drent +1
Condition-based maintenance (CBM) is an approach that plans interventions for deteriorating systems according to their observed operational state. CBM reduces unplanned downtime an…
math.OC2025
Same-day or next-day? Transparent time-dependent shipment pricing for e-fulfillment
Uta Mohring, Melvin Drent, Ivo Adan +1
We develop a parsimonious model of an e-commerce fulfillment center that offers time-dependent shipment options and corresponding fees to utility-maximizing customers arriving acco…
math.PR2025
Asymptotic Optimality of Projected Inventory Level Policies for Lost Sales Inventory Systems with Large Leadtime and Penalty Cost
Poulad Moradi, Joachim Arts, Melvin Drent
We study the canonical periodic review lost sales inventory system with positive leadtime and independent and identically distributed (i.i.d.) demand under the average cost criteri…