Glossary · Term

Shannon's chain rule

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Definition

A basic fact in information theory that lets you split total uncertainty into pieces.

The decomposition of joint entropy as a sum of conditional and marginal entropies, foundational for relating mutual information to entropy components.

Mentioned in 1 episode

  1. 010
    When Reward Climbs But Reasoning Goes Generic: Diagnosing Template Collapse in Agentic RL