Online Friends Partitioning Under Uncertainty

Saar Cohen, Noa Agmon

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We study the friendship-based online coalition formation problem, in which agents that appear one at a time should be partitioned into coalitions, and an agent’s utility for a coalition is the number of her neighbors (i.e., friends) within the coalition.Unlike prior work, agents’ friendships may be uncertain.We analyze the desirability of the resulting partition in the common term of optimality, aiming to maximize the social welfare.We design an online algorithm termed Maximum Predicted Coalitional Friends (MPCF), which is enhanced with predictions of each agent’s number of friends within any possible coalition.For common classes of random graphs, we prove that MPCF is optimal, and, for certain graphs, provides the same guarantee as the best known competitive algorithm for settings without uncertainty.

Original languageEnglish
Title of host publicationECAI 2024 - 27th European Conference on Artificial Intelligence, Including 13th Conference on Prestigious Applications of Intelligent Systems, PAIS 2024, Proceedings
EditorsUlle Endriss, Francisco S. Melo, Kerstin Bach, Alberto Bugarin-Diz, Jose M. Alonso-Moral, Senen Barro, Fredrik Heintz
PublisherIOS Press BV
Pages3332-3339
Number of pages8
ISBN (Electronic)9781643685489
DOIs
StatePublished - 16 Oct 2024
Event27th European Conference on Artificial Intelligence, ECAI 2024 - Santiago de Compostela, Spain
Duration: 19 Oct 202424 Oct 2024

Publication series

NameFrontiers in Artificial Intelligence and Applications
Volume392

Conference

Conference27th European Conference on Artificial Intelligence, ECAI 2024
Country/TerritorySpain
CitySantiago de Compostela
Period19/10/2424/10/24

All Science Journal Classification (ASJC) codes

  • Artificial Intelligence

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