When Should You Wait Before Updating? Toward a Robustness Refinement - Archive ouverte HAL
Conference Papers Year : 2023

When Should You Wait Before Updating? Toward a Robustness Refinement

Abstract

Consider a dynamic network and a given distributed problem. At any point in time, there might exist several solutions that are equally good with respect to the problem specification, but that are different from an algorithmic perspective, because some could be easier to update than others when the network changes. In other words, one would prefer to have a solution that is more robust to topological changes in the network; and in this direction the best scenario would be that the solution remains correct despite the dynamic of the network. In~\cite{CasteigtsDPR20}, the authors introduced a very strong robustness criterion: they required that for any removal of edges that maintain the network connected, the solution remains valid. They focus on the maximal independent set problem, and their approach consists in characterizing the graphs in which there exists a robust solution (the existential problem), or even stronger, where any solution is robust (the universal problem). As the robustness criteria is very demanding, few graphs have a robust solution, and even fewer are such that all of their solutions are robust. In this paper, we ask the following question: \textit{Can we have robustness for a larger class of networks, if we bound the number $k$ of edge removals allowed}? (See the full paper for the full abstract.)
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Dates and versions

hal-04101692 , version 1 (21-05-2023)
hal-04101692 , version 2 (11-10-2024)

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Swan Dubois, Laurent Feuilloley, Franck Petit, Mikaël Rabie. When Should You Wait Before Updating? Toward a Robustness Refinement. 2nd Symposium on Algorithmic Foundations of Dynamic Networks (SAND 2023), Jun 2023, Pisa, Italy. pp.7:1--7:15, ⟨10.4230/LIPIcs.SAND.2023.7⟩. ⟨hal-04101692v2⟩
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