5 papers
Emission-aware operation of residential PV-battery systems: the role of information structure
Anna Sacilotto, Ambrogio Maria Bernardelli, Stefano Gualandi
Residential batteries can reduce the carbon emissions of households with photovoltaic (PV) generation, but how much depends on how they are operated under uncertain load, PV genera…
Theoretical Perspectives on Jabr-Type Convex Relaxations for AC Optimal Power Flow
Gabor Riccardi, Ambrogio Maria Bernardelli, Stefano Gualandi
The alternating current optimal power flow problem is a fundamental yet highly nonconvex optimization problem whose structure reflects both nonlinear power flow physics and the top…
The Cloven Traveling Salesman: Cycle Covers and the Integrality Gap of Small ATSP Instances
Alessandro Sosso, Ambrogio Maria Bernardelli, Stefano Gualandi
This work proposes a novel enumeration algorithm for computing the integrality gap of small instances of the subtour elimination formulation for the Asymmetric Traveling Salesman P…
Lower bounds for the integrality gap of the bi-directed cut formulation of the Steiner Tree Problem
Ambrogio Maria Bernardelli, Eleonora Vercesi, Stefano Gualandi +2
In this work, we study the metric Steiner Tree problem on graphs focusing on computing lower bounds for the integrality gap of the bi-directed cut (BCR) formulation and introducing…
Multi-Objective Linear Ensembles for Robust and Sparse Training of Few-Bit Neural Networks
Ambrogio Maria Bernardelli, Stefano Gualandi, Hoong Chuin Lau +2
Training neural networks (NNs) using combinatorial optimization solvers has gained attention in recent years. In low-data settings, state-of-the-art mixed integer linear programmin…