Search Results - "Fearnley, John"
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1
Reachability Switching Games
Published in Logical methods in computer science (01-01-2021)“…We study the problem of deciding the winner of reachability switching games for zero-, one-, and two-player variants. Switching games provide a deterministic…”
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2
The Complexity of All-switches Strategy Improvement
Published in Logical methods in computer science (01-01-2018)“…Strategy improvement is a widely-used and well-studied class of algorithms for solving graph-based infinite games. These algorithms are parameterized by a…”
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3
Time and Parallelizability Results for Parity Games with Bounded Tree and DAG Width
Published in Logical methods in computer science (18-06-2013)“…Parity games are a much researched class of games in NP intersect CoNP that are not known to be in P. Consequently, researchers have considered specialised…”
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4
Playing Muller Games in a Hurry
Published in Electronic proceedings in theoretical computer science (09-06-2010)“…This work studies the following question: can plays in a Muller game be stopped after a finite number of moves and a winner be declared. A criterion to do this…”
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5
Unique end of potential line
Published in Journal of computer and system sciences (01-12-2020)“…The complexity class CLS was proposed by Daskalakis and Papadimitriou in 2011 to understand the complexity of important NP search problems that admit both path…”
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6
Computing exact solutions of consensus halving and the Borsuk-Ulam theorem
Published in Journal of computer and system sciences (01-05-2021)“…We study the problem of finding an exact solution to the Consensus Halving problem. While recent work has shown that the approximate version of this problem is…”
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7
Approximating the existential theory of the reals
Published in Journal of computer and system sciences (01-05-2022)“…The Existential Theory of the Reals (ETR) consists of existentially quantified Boolean formulas over equalities and inequalities of polynomial functions of…”
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8
Reachability in two-clock timed automata is PSPACE-complete
Published in Information and computation (01-08-2015)“…Recently, Haase, Ouaknine, and Worrell have shown that reachability in two-clock timed automata is log-space equivalent to reachability in bounded one-counter…”
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9
Pure-Circuit: Strong Inapproximability for PPAD
Published in 2022 IEEE 63rd Annual Symposium on Foundations of Computer Science (FOCS) (01-10-2022)“…The current state-of-the-art methods for showing inapproximability in PPAD arise from the \varepsilon-Generalized-Circuit (\varepsilon-GCIRCUIT) problem…”
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Conference Proceeding -
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Computing Approximate Nash Equilibria in Polymatrix Games
Published in Algorithmica (01-02-2017)“…In an ϵ -Nash equilibrium, a player can gain at most ϵ by unilaterally changing his behavior. For two-player (bimatrix) games with payoffs in [0, 1], the…”
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11
Lipschitz Continuity and Approximate Equilibria
Published in Algorithmica (01-10-2020)“…In this paper, we study games with continuous action spaces and non-linear payoff functions. Our key insight is that Lipschitz continuity of the payoff…”
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12
Bayesian optimisation of restriction zones for bluetongue control
Published in Scientific reports (15-09-2020)“…We investigate the restriction of animal movements as a method to control the spread of bluetongue, an infectious disease of livestock that is becoming…”
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13
An ordered approach to solving parity games in quasi-polynomial time and quasi-linear space
Published in International journal on software tools for technology transfer (01-06-2019)“…Parity games play an important role in model checking and synthesis. In their paper, Calude et al. have recently shown that these games can be solved in…”
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14
Distributed Methods for Computing Approximate Equilibria
Published in Algorithmica (15-03-2019)“…We present a new, distributed method to compute approximate Nash equilibria in bimatrix games. In contrast to previous approaches that analyze the two payoff…”
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15
Synthesis of succinct systems
Published in Journal of computer and system sciences (01-11-2015)“…Synthesis of correct by design systems from specifications has recently attracted a lot of attention. The theoretical results imply that this problem is highly…”
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16
Efficient approximation of optimal control for continuous-time Markov games
Published in Information and computation (01-04-2016)“…We study the time-bounded reachability problem for continuous-time Markov decision processes (CTMDPs) and games (CTMGs). Existing techniques for this problem…”
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17
Approximate Well-supported Nash Equilibria Below Two-thirds
Published in Algorithmica (01-10-2016)“…In an ϵ -Nash equilibrium, a player can gain at most ϵ by changing his behaviour. Recent work has addressed the question of how best to compute ϵ -Nash…”
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18
Super Unique Tarski is in UEOPL
Published 08-11-2024“…We define the Super-Unique-Tarski problem, which is a Tarski instance in which all slices are required to have a unique fixed point. We show that…”
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19
Efficient Parallel Strategy Improvement for Parity Games
Published 05-05-2017“…We study strategy improvement algorithms for solving parity games. While these algorithms are known to solve parity games using a very small number of…”
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20
Pure-Circuit: Tight Inapproximability for PPAD
Published 12-09-2024“…The current state-of-the-art methods for showing inapproximability in PPAD arise from the $\varepsilon$-Generalized-Circuit ($\varepsilon$-GCircuit) problem…”
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