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concept:temperature-precision-parameterTemperature / Precision Parameter
The inverse precision (γ = 1/β) that scales the influence of expected free energy on policy selection, controlling exploration-exploitation balance.
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- Core mechanism across all three levels; inverse variance controlling how much the system trusts evidence at each hierarchical level.
- Criterion requiring that model's description of internal state be accurate, distinguishing genuine introspection from confabulation.
- Parameter specific to each task, e.g., task head.
- Links precision to dopamine, Section 6.3.
- Sufficient statistics of Dirichlet priors over likelihood; accumulate as experience is gained; analogous to synaptic efficacy
- Encoding of prediction confidence; proposed role for dopamine beyond reward signalling.
- Direct editing of model parameters, enabled by VPD's decomposition, for manual model editing.