Models and algorithms for reliability-oriented dial-a-ride with autonomous electric vehicles

V Pimenta, A Quilliot, H Toussaint, D Vigo - European Journal of …, 2017 - Elsevier
We consider a static decision model related to the management of a Dial-a-Ride (DAR)
system involving small autonomous electrical vehicles in a closed industrial site. Because of …

[PDF][PDF] New Bounds and Constraint Programming Models for the Weighted Vertex Coloring Problem.

O Goudet, C Grelier, D Lesaint - IJCAI, 2023 - ijcai.org
This paper addresses the weighted vertex coloring problem (WVCP) which is an NP-hard
variant of the graph coloring problem with various applications. Given a vertex-weighted …

[HTML][HTML] Solving vertex coloring problems as maximum weight stable set problems

D Cornaz, F Furini, E Malaguti - Discrete Applied Mathematics, 2017 - Elsevier
Abstract In Vertex Coloring Problems, one is required to assign a color to each vertex of an
undirected graph in such a way that adjacent vertices receive different colors, and the …

Constraint and satisfiability reasoning for graph coloring

E Hébrard, G Katsirelos - Journal of Artificial Intelligence Research, 2020 - jair.org
Graph coloring is an important problem in combinatorial optimization and a major
component of numerous allocation and scheduling problems. In this paper we introduce a …

An Improved DSATUR‐Based Branch‐and‐Bound Algorithm for the Vertex Coloring Problem

F Furini, V Gabrel, IC Ternier - Networks, 2017 - Wiley Online Library
Given an undirected graph, the Vertex Coloring Problem (VCP) consists of assigning a color
to each vertex of the graph in such a way that two adjacent vertices do not share the same …

A hybrid approach for exact coloring of massive graphs

E Hebrard, G Katsirelos - … , CPAIOR 2019, Thessaloniki, Greece, June 4–7 …, 2019 - Springer
The graph coloring problem appears in numerous applications, yet many state-of-the-art
methods are hardly applicable to real world, very large, networks. The most efficient …

Graph coloring via clique search with symmetry breaking

S Szabó, B Zaválnij - Symmetry, 2022 - mdpi.com
It is known that the problem of proper coloring of the nodes of a given graph can be reduced
to finding cliques in a suitably constructed auxiliary graph. In this work, we explore the …

A new facet generating procedure for the stable set polytope

ÁS Xavier, M Campêlo - Electronic Notes in Discrete Mathematics, 2011 - Elsevier
We introduce a new facet-generating procedure for the stable set polytope, based on
replacing (k− 1)-cliques with certain k-partite graphs, which subsumes previous procedures …

[HTML][HTML] Reducing hypergraph coloring to clique search

S Szabo, B Zavalnij - Discrete Applied Mathematics, 2019 - Elsevier
It is known that the legal coloring of the nodes of a given graph can be reduced to a clique
search problem. This paper generalizes this result for hypergraphs. Namely, we will show …

Lower bounding techniques for dsatur-based branch and bound

F Furini, V Gabrel, IC Ternier - Electronic Notes in Discrete Mathematics, 2016 - Elsevier
Given an undirected graph, the Vertex Coloring Problem (VCP) consists of assigning a color
to each vertex of the graph such that two adjacent vertices do not share the same color and …