One innovative solution to the last-mile delivery problem is the self-service locker system.
Motivated by a real case in Singapore, we consider a POP-Locker Alliance who operates a …

Hub-and-spoke networks are widely applied in a variety of industries such as transportation,
postal delivery, and telecommunications. Although they are designed to exploit economies …

We consider a class of location–allocation problems with immobile servers, stochastic
demand and congestion that arises in several planning contexts: location of emergency …

We describe strong convex valid inequalities for conic quadratic mixed 0–1 optimization.
These inequalities can be utilized for solving numerous practical nonlinear discrete …

We consider a class of nonlinear integer optimization problems commonly known as
fractional 0–1 programming problems (also, often referred to as hyperbolic 0–1 …

In this paper, we deal with waste management. Our modelling proposal is to use fractional
programming to solve two strategical objectives related to the costs incurred and utility …

Motivated by the strategic importance of congestion management, in this paper we present a
model to design hub-and-spoke networks under stochastic demand and congestion. The …

The electric vehicle (EV) industry is currently afflicted with inefficient charging systems.
Considering the growing adoption of EVs, optimization strategies for efficient charging, and …

This paper studies video transmission using a multi-homing service in a heterogeneous
wireless access medium. We propose an energy and content aware video transmission …

In this paper, we study the hub location problem of an entrant airline that tries to maximize its
share in a market with already existing competing players. The problem is modeled as a non …