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Combinatorial Optimisation

Geometric Deep Learning sub-network extraction for Maximum Clique Enumeration

In this paper we propose a method based on geometric deep learning to reduce the computational complexity of the Maximum Clique Enumeration (MCE) problem. Specifically, given a …

Journal
Vincenza Carchiolo, Marco Grassia, Michele Malgeri, Giuseppe Mangioni
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Edge Dismantling with Geometric Reinforcement Learning

The robustness of networks plays a crucial role in various applications. Network dismantling, the process of strategically removing nodes or edges to maximize damage, is a known …

Conference
Marco Grassia, Giuseppe Mangioni
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Learning fine-grained search space pruning and heuristics for combinatorial optimization

Combinatorial optimization problems arise naturally in a wide range of applications from diverse domains. Many of these problems are NP-hard and designing efficient heuristics for …

Journal
Juho Lauri, Sourav Dutta, Marco Grassia, Deepak Ajwani
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Geometric Deep Learning Graph Pruning to Speed-Up the Run-Time of Maximum Clique Enumerarion Algorithms

In this paper we propose a method to reduce the running time to solve the Maximum Clique Enumeration (MCE) problem. Specifically, given a network we employ geometric deep learning …

Conference
Andrea Arciprete, Vincenza Carchiolo, Daniela Chiavetta, Marco Grassia et al.
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CoreGDM: Geometric Deep Learning Network Decycling and Dismantling

Network dismantling deals with the removal of nodes or edges to disrupt the largest connected component of a network. In this work we introduce CoreGDM, a trainable algorithm for …

Conference
Marco Grassia, Giuseppe Mangioni
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Machine learning dismantling and early-warning signals of disintegration in complex systems featured image

Machine learning dismantling and early-warning signals of disintegration in complex systems

From physics to engineering, biology and social science, natural and artificial systems are characterized by interconnected topologies whose features – e.g., heterogeneous …

Journal
Marco Grassia, Manlio De Domenico, Giuseppe Mangioni
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Wind Farms Maintenance Optimization Using a Pickup and Delivery VRP Algorithm

Operations and maintenance of wind farms in renewable energy production are crucial to guarantee high availability and reduced downtime, saving at the same time the cost of energy …

Conference
Vincenza Carchiolo, Alessandro Longheu, Michele Malgeri, Giuseppe Mangioni et al.
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Pick-up & Deliver in Maintenance Management of Renewable Energy Power Plants

Logistic optimization is a strategic element in many industrial processes, given that an optimized logistics makes the processes more efficient. A relevant case, in which the …

Conference
Vincenza Carchiolo, Francesco Di Dio, Alessandro Longheu, Giuseppe Mangioni et al.
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Learning Multi-Stage Sparsification for Maximum Clique Enumeration

We propose a multi-stage learning approach for pruning the search space of maximum clique enumeration, a fundamental computationally difficult problem arising in various network …

Conference
Marco Grassia, Juho Lauri, Sourav Dutta, Deepak Ajwani
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Graph Algorithms and Combinatorial Optimisation

How can structural information and machine learning make hard graph problems more tractable while preserving clear objectives and measurable performance?