A method for urban air mobility network design using hub location and subgraph isomorphism

LC Willey, JL Salmon - Transportation Research Part C: Emerging …, 2021 - Elsevier
Rising concerns related to the effects of traffic congestion have led to the proposal of many
alternative solutions, including the idea of Urban Air Mobility (UAM), which uses electric …

A new combinatorial branch-and-bound algorithm for the knapsack problem with conflicts

S Coniglio, F Furini, P San Segundo - European Journal of Operational …, 2021 - Elsevier
Abstract We study the Knapsack Problem with Conflicts, a generalization of the Knapsack
Problem in which a set of conflicts specifies pairs of items which cannot be simultaneously …

A Short Review on Novel Approaches for Maximum Clique Problem: from Classical algorithms to Graph Neural Networks and Quantum algorithms

R Marino, L Buffoni, B Zavalnij - arXiv preprint arXiv:2403.09742, 2024 - arxiv.org
This manuscript provides a comprehensive review of the Maximum Clique Problem, a
computational problem that involves finding subsets of vertices in a graph that are all …

A branch-and-cut algorithm for the edge interdiction clique problem

F Furini, I Ljubić, P San Segundo, Y Zhao - European Journal of …, 2021 - Elsevier
Given a graph G and an interdiction budget k∈ N, the Edge Interdiction Clique Problem
(EICP) asks to find a subset of at most k edges to remove from G so that the size of the …

[HTML][HTML] CliSAT: A new exact algorithm for hard maximum clique problems

P San Segundo, F Furini, D Álvarez… - European Journal of …, 2023 - Elsevier
Given a graph, the maximum clique problem (MCP) asks for determining a complete
subgraph with the largest possible number of vertices. We propose a new exact algorithm …

Detecting a most closeness-central clique in complex networks

F Nasirian, FM Pajouh, B Balasundaram - European Journal of Operational …, 2020 - Elsevier
Centrality is a powerful concept for detecting influential components of a network applicable
to various areas such as analysis of social, collaboration, and biological networks. In this …

Learning from survey propagation: a neural network for MAX-E-3-SAT

R Marino - Machine Learning: Science and Technology, 2021 - iopscience.iop.org
Many natural optimization problems are NP-hard, which implies that they are probably hard
to solve exactly in the worst-case. However, it suffices to get reasonably good solutions for …

A matheuristic approach for the b-coloring problem using integer programming and a multi-start multi-greedy randomized metaheuristic

RA Melo, MF Queiroz, MC Santos - European Journal of Operational …, 2021 - Elsevier
Given a graph G=(V, E), the b-coloring problem consists in attributing a color to every vertex
in V such that adjacent vertices receive different colors, every color has a b-vertex, and the …

A unified framework for multistage mixed integer linear optimization

S Bolusani, S Coniglio, TK Ralphs… - … : Advances and next …, 2020 - Springer
We introduce a unified framework for the study of multilevel mixed integer linear optimization
problems and multistage stochastic mixed integer linear optimization problems with …

Obtaining the Grundy chromatic number: How bad can my greedy heuristic coloring be?

MC Silva, RA Melo, MGC Resende, MC Santos… - Computers & Operations …, 2024 - Elsevier
Given a simple undirected graph G, its Grundy chromatic number Γ (G)(or Grundy number)
defines the worst-case behavior for the well-known and widely-used greedy first-fit coloring …