Info Bound on World Models in Optimal Policies
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Info Bound on World Models in Optimal Policies

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๐Ÿ“„Read original on ArXiv AI

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What changed

Optimal policy reveals n log m bits about transition dynamics

Why it matters

Establishes theoretical minimum for world models in RL agents. Informs AI safety by quantifying representation needs. Aids model compression and interpretability research.

What to do next

Evaluate benchmark claims against your own use cases before adoption.

Who should care:AI PractitionersProduct Teams

New ArXiv paper quantifies information optimal policies encode about environments. Proves mutual information of exactly n log m bits in Controlled Markov Processes. Bound holds for finite-horizon, discounted, and average reward maximization.

Key Points

  • 1.Optimal policy reveals n log m bits about transition dynamics
  • 2.Uniform prior over environments assumed
  • 3.Lower bound on implicit world model for optimality

Impact Analysis

Establishes theoretical minimum for world models in RL agents. Informs AI safety by quantifying representation needs. Aids model compression and interpretability research.

Technical Details

Analyzes CMPs with n states, m actions. Mutual information I(environment; policy) = n log m bits for non-constant rewards. Proven across broad objectives.

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Original source: ArXiv AI โ†—