Regret Minimisation and System-Efficiency in Route Choice

  • Gabriel O. Ramos UFRGS
  • Ana L. C. Bazzan UFRGS
  • Bruno C. da Silva UFRGS

Resumo


Traffic congestions present a major challenge in large cities. Consid- ering the distributed, self-interested nature oftraffic we tackle congestions using multiagent reinforcement learning (MARL). In this thesis, we advance the state- of-the-art by delivering the first MARL convergence guarantees in congestion- like problems. We introduce an algorithm through which drivers can learn opti- mal routes by locally estimating the regret associated with their decisions, which we prove to converge to an equilibrium. In order to mitigate the effects ofselfish- ness, we also devise a decentralised tolling scheme, which we prove to minimise traffic congestion levels. Our theoretical results are supported by an extensive empirical evaluation on realistic traffic networks. 1.

Palavras-chave: Aprendizagem por reforço multiagente, escolha de rotas, equilíbrio dos usuários, ótimo do sistema, minimização de regret, regret da ação, informação de viagem, pedágio de custo marginal.

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Ramos, G. de. O., da Silva, B. C., R˘adulescu, R., Bazzan, A. L. C., and Now´e, A. (2019a). Toll-based reinforcement learning for efficient equilibria in route choice. Knowledge Engineering Review. Conditionally accepted.

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Publicado
26/06/2019
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RAMOS, Gabriel O.; BAZZAN, Ana L. C.; DA SILVA, Bruno C.. Regret Minimisation and System-Efficiency in Route Choice. In: CONCURSO DE TESES E DISSERTAÇÕES (CTD), 32. , 2019, Belém. Anais [...]. Porto Alegre: Sociedade Brasileira de Computação, 2019 . ISSN 2763-8820. DOI: https://doi.org/10.5753/ctd.2019.6332.