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- Alfredo Anglani, Antonio Grieco, Emanuela Guerriero, Roberto Musmanno
- European Journal of Operational Research
- 2005

- Patrizia Beraldi, Gianpaolo Ghiani, Antonio Grieco, Emanuela Guerriero
- Computers & OR
- 2008

- Michel Gendreau, Gianpaolo Ghiani, Emanuela Guerriero
- Computers & OR
- 2015

- Jean-François Cordeau, Gianpaolo Ghiani, Emanuela Guerriero
- Transportation Science
- 2014

Given a graph whose arc traversal times vary over time, the Time-Dependent Travelling Salesman Problem (TDTSP) consists in finding a Hamiltonian tour of least total duration covering the vertices of the graph. The contribution of this paper is twofold. First, we describe a lower and upper bounding procedure that requires the solution of a simpler (yet… (More)

- Patrizia Beraldi, Gianpaolo Ghiani, Antonio Grieco, Emanuela Guerriero
- Comp. Opt. and Appl.
- 2006

This paper addresses a particular stochastic lot-sizing and scheduling problem. The evolution of the uncertain parameters is modelled by means of a scenario tree and the resulting model is a multistage stochastic mixed-integer program. We develop a heuristic approach that exploits the specific structure of the problem. The computational experiments carried… (More)

- Gianpaolo Ghiani, Antonio Grieco, Emanuela Guerriero
- Networks
- 2010

- Pierpaolo Caricato, Gianpaolo Ghiani, Antonio Grieco, Emanuela Guerriero
- Parallel Computing
- 2003

This article introduces the Pickup and Delivery Problem under Track Contention, a particular vehicle routing problem in which loads have to be transported between origin–destination pairs by means of vehicles travelling along a capacitated network. Two sequential heuristics and a parallel tabu search are proposed. Computational experiments show that the… (More)

Discrete event simulation based on the object oriented approach is an interesting research area mainly composed by two research topics: the design of object oriented simulation language and the definition of methodologies that starting from a conceptual modeling phase guides the simulation designer to develop an object oriented simulator. The two subjects… (More)

- Gianpaolo Ghiani, Emanuela Guerriero
- Transportation Science
- 2014

- Gianpaolo Ghiani, Emanuela Guerriero, Andrea Manni, Emanuele Manni, Agostino Potenza
- Waste management
- 2013

Urban waste management is becoming an increasingly complex task, absorbing a huge amount of resources, and having a major environmental impact. The design of a waste management system consists in various activities, and one of these is related to the definition of shift schedules for both personnel and vehicles. This activity has a great incidence on the… (More)