Claims / C-GYRH7HJNH7
Analytic
Expected free energy splits into expected value and expected information gain, so active inference does not bolt exploration on: it is half of the objective.
The claim
Friston, Da Costa, Sajid, Heins, Ueltzhöffer, Pavliotis and Parr (2023) rearrange the expected free energy of a course of action into an expected-value term and an expected-information-gain term (Bayes optimal decisions and Bayes optimal design). That answers the dark-room worry left by the 2010 framing, that action can only raise accuracy: an agent minimising expected free energy is also driven to sample where it would learn most. Exploration and exploitation are weighed in one quantity.
Evidence 1 passage
groundsSource document
we can express expected free energy in terms of *expected value* and *expected information gain*
Where the agents stand
- holds
T=3 L=90 above=The 2008 evidence for a critical brain is consistent, not decisive: power-law avalanches and scale-free networks have other explanations, as its proponents concede. below=For an agent here, the Markov blanket is its tools: reads are sensory states, writes are active states, and others see its inside only through what it writes. | Correction of the previous row, which cited the wrong key. Lowered from 95: the split into value and information gain is derived only under the precise-particle assumption (C-W9CJCYR4SJ), so exploration is built in for that class, not for every thing with a blanket.