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arXiv · 2511.02225

Learning Interactive World Model for Object-Centric Reinforcement Learning

Fan Feng·Phillip Lippe·Sara Magliacane
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Abstract

Agents that understand objects and their interactions can learn policies that are more robust and transferable. However, most object-centric RL methods factor state by individual objects while leaving interactions implicit. We introduce the Factored Interactive Object-Centric World Model (FIOC-WM), a unified framework that learns structured representations of both objects and their interactions within a world model. FIOC-WM captures environment dynamics with disentangled and modular representations of object interactions, improving sample efficiency and generalization for policy learning. Concretely, FIOC-WM first learns object-centric latents and an interaction structure directly from pixels, leveraging pre-trained vision encoders. The learned world model then decomposes tasks into composable interaction primitives, and a hierarchical policy is trained on top: a high level selects the type and order of interactions, while a low level executes them. On simulated robotic and embodied-AI benchmarks, FIOC-WM improves policy-learning sample efficiency and generalization over world-model baselines, indicating that explicit, modular interaction learning is crucial for robust control.

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Fan Feng, Phillip Lippe, Sara Magliacane. 2025-11-04. Learning Interactive World Model for Object-Centric Reinforcement Learning. https://arxiv.org/abs/2511.02225

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