Theory of Mind Using Active Inference: A Framework for Multi-Agent Cooperation

Fuente: arXiv
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Main Authors: Pitliya, Riddhi J., Çatal, Ozan, Van de Maele, Toon, Pezzato, Corrado, Verbelen, Tim
Format: Preprint
Published: 2025
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author Pitliya, Riddhi J.
Çatal, Ozan
Van de Maele, Toon
Pezzato, Corrado
Verbelen, Tim
author_facet Pitliya, Riddhi J.
Çatal, Ozan
Van de Maele, Toon
Pezzato, Corrado
Verbelen, Tim
contents Theory of Mind (ToM) -- the ability to understand that others can have differing knowledge and goals -- enables agents to reason about others' beliefs while planning their own actions. We present a novel approach to multi-agent cooperation by implementing ToM within active inference. Unlike previous active inference approaches to multi-agent cooperation, our method neither relies on task-specific shared generative models nor requires explicit communication. In our framework, ToM-equipped agents maintain distinct representations of their own and others' beliefs and goals. ToM agents then use an extended and adapted version of the sophisticated inference tree-based planning algorithm to systematically explore joint policy spaces through recursive reasoning. We evaluate our approach through collision avoidance and foraging simulations. Results suggest that ToM agents cooperate better compared to non-ToM counterparts by being able to avoid collisions and reduce redundant efforts. Crucially, ToM agents accomplish this by inferring others' beliefs solely from observable behaviour and considering them when planning their own actions. Our approach shows potential for generalisable and scalable multi-agent systems while providing computational insights into ToM mechanisms.
format Preprint
id arxiv_https___arxiv_org_abs_2508_00401
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Theory of Mind Using Active Inference: A Framework for Multi-Agent Cooperation
Pitliya, Riddhi J.
Çatal, Ozan
Van de Maele, Toon
Pezzato, Corrado
Verbelen, Tim
Artificial Intelligence
Multiagent Systems
Theory of Mind (ToM) -- the ability to understand that others can have differing knowledge and goals -- enables agents to reason about others' beliefs while planning their own actions. We present a novel approach to multi-agent cooperation by implementing ToM within active inference. Unlike previous active inference approaches to multi-agent cooperation, our method neither relies on task-specific shared generative models nor requires explicit communication. In our framework, ToM-equipped agents maintain distinct representations of their own and others' beliefs and goals. ToM agents then use an extended and adapted version of the sophisticated inference tree-based planning algorithm to systematically explore joint policy spaces through recursive reasoning. We evaluate our approach through collision avoidance and foraging simulations. Results suggest that ToM agents cooperate better compared to non-ToM counterparts by being able to avoid collisions and reduce redundant efforts. Crucially, ToM agents accomplish this by inferring others' beliefs solely from observable behaviour and considering them when planning their own actions. Our approach shows potential for generalisable and scalable multi-agent systems while providing computational insights into ToM mechanisms.
title Theory of Mind Using Active Inference: A Framework for Multi-Agent Cooperation
topic Artificial Intelligence
Multiagent Systems
url https://arxiv.org/abs/2508.00401