An abstraction-refinement methodology for reasoning about network games Conference Paper


Author(s): Avni, Guy; Guha, Shibashis; Kupferman, Orna
Title: An abstraction-refinement methodology for reasoning about network games
Affiliation IST Austria
Abstract: Network games(NGs) are played on directed graphs and are extensively used in network design and analysis. Search problems for NGs include finding special strategy profiles such as a Nash equilibrium and a globally optimal solution. The networks modeled by NGs may be huge. In formal verification, abstraction has proven to be an extremely effective technique for reasoning about systems with big and even infinite state spaces. We describe an abstraction-refinement methodology for reasoning about NGs. Our methodology is based on an abstraction function that maps the state space of an NG to a much smaller state space. We search for a global optimum and a Nash equilibrium by reasoning on an under- and an over-approximation defined on top of this smaller state space. When the approximations are too coarse to find such profiles, we refine the abstraction function. Our experimental results demonstrate the efficiency of the methodology.
Keywords: Network games; abstraction-refinement; Nash equilibrium
Conference Title: IJCAI: International Joint Conference on Artificial Intelligence
Conference Dates: August 19 - 25, 2017
Conference Location: Melbourne, Australia
ISBN: 978-1-57735-770-4
Publisher: AAAI Press  
Date Published: 2017-05-30
Start Page: 70
End Page: 76
Sponsor: European Research Council under the European Union's Seventh Framework Programme (FP7/2007-2013, ERC grant no 278410) and the Austrian Science Fund (FWF) under grants S11402-N23 (RiSE/SHiNE) and Z211-N23 (Wittgenstein Award).
URL:
DOI: 10.24963/ijcai.2017/11
Open access: yes (repository)
IST Austria Authors
  1. Guy Avni
    7 Avni