# Toward Active World Modeling

Presenter: Lancelot Da Costa

Contribution: Pre&#45;recorded Video presentation

Public ID: talk&#45;3642a535b44d3e9c

## Submitted abstract

World models allow an agent to represent&#44; predict&#44; and act upon its environment&#46; Yet humans&#44; biological organisms&#44; and artificial agents never observe the world directly&#58; they encounter it only through a limited sensorimotor interface&#46; How&#44; then&#44; can an agent acquire a useful model of a complex&#44; partially observed world through active inference&#63;
In this talk&#44; I outline a research program for active world modeling&#58; the joint process of learning a model of the world and selecting actions that improve that model&#46; I argue that four ingredients are central to this program&#46; First&#44; world&#45;model learning should be formulated as probabilistic inference under uncertainty&#44; coupled to actions that pursue expected free energy&#46; Second&#44; agents require sufficiently expressive&#44; yet computationally searchable&#44; spaces of possible world models&#46; Third&#44; sample&#45;efficient learning depends on strong inductive biases &#8212; the core knowledge systems observed in human children&#46; I illustrate these ideas with recent work on universal structured model spaces and language&#45;model inductive biases in partially observable environments&#46; Finally&#44; I discuss the unresolved challenge of integrating these components into scalable agents capable of open&#45;ended exploration and model discovery&#46;
Together&#44; these results suggest a path toward understanding and emulating how humans and machines learn world models through active inference&#46;

Source: [submitted source](<https://2026symposium.activeinference.institute/>)

Abstract SHA256: ae95e50ae8a5129b2b7cd8952a6a2e79d8d39a7c11c9642f37f59c6cdf0740ee

## Organizer review checklist

- [ ] Confirm the submitted title, presenter, and abstract with the presenter.
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## Public learning resources

These approved event resources are starting points; topic relevance and author identity have not been inferred.

- Active Inference Ontology: https&#58;&#47;&#47;github&#46;com&#47;ActiveInferenceInstitute&#47;Active&#95;Inference&#95;Ontology
- Cognitive Agent Modeling: https&#58;&#47;&#47;github&#46;com&#47;ActiveInferenceInstitute&#47;ActiveInferenceImplementations
- GEO&#45;INFER: https&#58;&#47;&#47;github&#46;com&#47;ActiveInferenceInstitute&#47;GEO&#95;INFER
- Generalized Notation Notation: https&#58;&#47;&#47;github&#46;com&#47;ActiveInferenceInstitute&#47;Generalized&#95;Notation&#95;Notation
- pymdp: https&#58;&#47;&#47;github&#46;com&#47;infer&#45;actively&#47;pymdp
- Reproducible publication template: https&#58;&#47;&#47;github&#46;com&#47;docxology&#47;template

OpenAlex discovery-only search (not a verified identity or literature match): https&#58;&#47;&#47;openalex&#46;org&#47;works&#63;search&#61;Toward&#37;20Active&#37;20World&#37;20Modeling
