Average-energy games (full version)
Patricia Bouyer, Nicolas Markey, Mickael Randour, Kim G., Larsen, Simon Laursen

TL;DR
This paper introduces average-energy games, a new class of quantitative zero-sum games focusing on optimizing the long-run average of accumulated energy, with complexity results and strategy requirements analyzed.
Contribution
It formally defines average-energy games, explores their computational complexity, and analyzes strategy memory requirements for both one-player and two-player scenarios.
Findings
Deciding the winner is in NP ∩ coNP and as hard as mean-payoff games.
Memoryless strategies are sufficient for winning.
Complexity bounds and memory requirements are established for finite-capacity energy constraints.
Abstract
Two-player quantitative zero-sum games provide a natural framework to synthesize controllers with performance guarantees for reactive systems within an uncontrollable environment. Classical settings include mean-payoff games, where the objective is to optimize the long-run average gain per action, and energy games, where the system has to avoid running out of energy. We study average-energy games, where the goal is to optimize the long-run average of the accumulated energy. We show that this objective arises naturally in several applications, and that it yields interesting connections with previous concepts in the literature. We prove that deciding the winner in such games is in NP coNP and at least as hard as solving mean-payoff games, and we establish that memoryless strategies suffice to win. We also consider the case where the system has to minimize the average-energy while…
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Taxonomy
TopicsFormal Methods in Verification · Petri Nets in System Modeling · Low-power high-performance VLSI design
