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What Type of Inference is Active Inference?

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Active inference casts decision-making as inference, with the Expected Free Energy (EFE) unifying goal-directed and information-seeking behavior. Recent work showed that EFE minimization can be written as Variational Free Energy (VFE) minimization on a generative model augmented with epistemic priors. We prove that the VFE of the augmented model can be rewritten as the VFE of the predictive model plus explicit entropy-correction terms, making the EFE contribution transparent. We then show that proper EFE-based planning requires combining these epistemic corrections with a planning correction that turns marginal inference into policy optimization, yielding a full variational characterization of EFE-based planning. This clarifies which corrections are needed for cross-entropy planning and for full EFE-based planning. The same entropy-corrected formulation leads to a detailed message-passing scheme for EFE-based planning together with simpler ablations. Experiments on three grid-world environments show that full EFE-based planning outperforms ablations that omit either the planning correction or the epistemic corrections.

Wouter W. L. Nuijten, Mykola Lukashchuk, Thijs van de Laar, Bert de Vries• 2026

Related benchmarks

TaskDatasetResultRank
Active Inference PlanningFrozen Lake
Success Rate95.9
7
Active Inference PlanningRockSample
Average Reward3.06
5
Active Inference PlanningWumpus World
Success Rate47.7
5
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