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- ArticleSeptember 2024
Pattern Formation by Collective Behavior of Competing Cellular Automata-Based Agents
AbstractWe propose a novel game-theoretic multi-agent system approach to create a desired 2D pattern. We interpret a pattern formation problem as a variant of the iterated Spatial Prisoner’s Dilemma game, where evolutionary competing CA-based agents are ...
- research-articleJuly 2024
Discrete preference games with logic-based agents: Formal framework, complexity, and islands of tractability
AbstractAnalyzing and predicting the dynamics of opinion formation in the context of social environments are problems that attracted much attention in literature. While grounded in social psychology, these problems are nowadays popular within the ...
- research-articleMay 2024
Competition of Influencers: A Model for Maximizing Online Social Impact
WEBSCI '24: Proceedings of the 16th ACM Web Science ConferencePages 343–353https://doi.org/10.1145/3614419.3644031The landscape of human interaction has undergone a profound transformation since the advent of Online Social Networks (OSNs). Not only are they changing interpersonal dynamics, but they are also redefining the way businesses, political figures, and ...
- research-articleMay 2024
The critical node game
Journal of Combinatorial Optimization (SPJCO), Volume 47, Issue 5https://doi.org/10.1007/s10878-024-01173-3AbstractIn this work, we introduce a game-theoretic model that assesses the cyber-security risk of cloud networks and informs security experts on the optimal security strategies. Our approach combines game theory, combinatorial optimization, and cyber-...
- research-articleMarch 2024
Nash conditional independence curve
Journal of Symbolic Computation (JOSC), Volume 122, Issue Chttps://doi.org/10.1016/j.jsc.2023.102255AbstractWe study the Spohn conditional independence (CI) variety C X of an n-player game X for undirected graphical models on n binary random variables consisting of one edge. For a generic game, we show that C X is a smooth irreducible complete ...
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- research-articleApril 2024
Some notes on possibilistic randomisation with t-norm based joint distributions in strategic-form games
International Journal of Approximate Reasoning (IJAR), Volume 166, Issue Chttps://doi.org/10.1016/j.ijar.2023.109109AbstractThis article continues the investigation started in [18] on the role of possibilistic mixed strategies in strategic-form games. In this earlier work we assumed, as standard in possibility theory, that joint possibility distributions were computed ...
- research-articleDecember 2023
Existence and verification of Nash equilibria in non-cooperative contribution games with resource contention
Annals of Mathematics and Artificial Intelligence (KLU-AMAI), Volume 92, Issue 2Pages 317–353https://doi.org/10.1007/s10472-023-09905-7AbstractIn resource contribution games, a class of non-cooperative games, the players want to obtain a bundle of resources and are endowed with bags of bundles of resources that they can make available into a common for all to enjoy. Available resources ...
- research-articleSeptember 2023
Not all strangers are the same: The impact of tolerance in Schelling games
AbstractSchelling's famous model of segregation assumes agents of different types, who would like to be located in neighborhoods having at least a certain fraction of agents of the same type. We consider natural generalizations that allow for ...
- research-articleMay 2023
Debt Transfers in Financial Networks: Complexity and Equilibria
AAMAS '23: Proceedings of the 2023 International Conference on Autonomous Agents and Multiagent SystemsPages 260–268We consider the operation of debt transfer in interbank networks. In particular, assuming a financial system that is represented by a network of banks and their bilateral debt contracts, we consider the setting where a bank can transfer the right to ...
- research-articleMay 2023
Bridging the Gap Between Single and Multi Objective Games
AAMAS '23: Proceedings of the 2023 International Conference on Autonomous Agents and Multiagent SystemsPages 224–232A classic model to study strategic decision making in multi-agent systems is the normal-form game. This model can be generalised to allow for an infinite number of pure strategies leading to continuous games. Multi-objective normal-form games are another ...
- research-articleApril 2023
Uniform Mixed Equilibria in Network Congestion Games with Link Failures
Mathematics of Operations Research (MOOR), Volume 49, Issue 1Pages 509–535https://doi.org/10.1287/moor.2023.1365Motivated by possible applications in fault-tolerant selfish routing, we introduce the notion of uniform mixed equilibrium in network congestion games with adversarial link failures, where agents need to route traffic from a source to a destination node. ...
- research-articleMarch 2023
On Quasi-Stationary Mean Field Games of Controls
Applied Mathematics and Optimization (APMO), Volume 87, Issue 3https://doi.org/10.1007/s00245-022-09960-2AbstractIn Mean Field Games of Controls, the dynamics of the single agent is influenced not only by the distribution of the agents, as in the classical theory, but also by the distribution of their optimal strategies. In this paper, we study quasi-...
- research-articleFebruary 2023
Nash Equilibria Strategies and Equivalent Single-Objective Optimization Problems. The Case of Linear Partial Differential Equations
Applied Mathematics and Optimization (APMO), Volume 87, Issue 2https://doi.org/10.1007/s00245-022-09944-2AbstractIn this paper we study the existence and uniqueness of Nash equilibria (solution to competition-wise problems, with several controls trying to reach possibly different goals) associated to linear partial differential equations and show that, in ...
- ArticleMay 2023
Solving Chainmail Jousting
AbstractWe consider the Chainmail Jousting game by Gygax and Perren (1971), a symmetric game of pure skill for two players. Preliminary analysis produces a payoff matrix with only zero and unit values. We find that this matrix is too large to be solved by ...
- research-articleNovember 2022
A Q-based policy gradient optimization approach for Doudizhu
Applied Intelligence (KLU-APIN), Volume 53, Issue 12Pages 15372–15389https://doi.org/10.1007/s10489-022-04281-xAbstractDeep reinforcement learning (DRL) has recently been employed in various games, with which superhuman intelligence has been achieved, including Atari, Go, no-limit, and Texas hold’em. However, this technique has not been fully considered for ...
- ArticleSeptember 2022
Strategic Nominee Selection in Tournament Solutions
AbstractTournament solutions provide methods of selecting winners of a competition based on the results of pairwise comparisons. These methods have been studied in-depth from the perspective of social choice theory, where a comparison between two ...
- ArticleSeptember 2022
A New Game Theoretic Based Random Forest for Binary Classification
AbstractDecision trees and random forests are some of the most popular machine learning tools for binary classification, being used in many practical applications. Both methods provide a neighborhood for tested data during the prediction phase, and ...
- research-articleJuly 2022
The Derby Game: An Ordering-based Colonel Blotto Game
EC '22: Proceedings of the 23rd ACM Conference on Economics and ComputationPages 184–207https://doi.org/10.1145/3490486.3538367The Colonel Blotto game and its variants are a common approach to study competitive allocation of interchangeable resources (e.g., soldiers, money, or votes). We introduce a new variant of Blotto, which we call the Derby game, to study competitive ...
- research-articleMay 2022
Ensuring Mutual Benefit in a Trans-boundary Industrial Pollution Control Problem
Computational Economics (KLU-CSEM), Volume 62, Issue 1Pages 91–128https://doi.org/10.1007/s10614-022-10270-6AbstractTechnological developments play a crucial role in allowing governments and industries to meet carbon emission targets, whilst maintaining cost effectiveness. Mathematical modeling related to climate change has often included technology (including ...