Mathematics and probability · MLD-0610
Kullback-Leibler divergence
A directional measure of distribution mismatch based on expected log probability ratios.
Original reference page · detailed expansion pending. Original definitions, examples, notes and citations are preserved below. New examples are illustrative, not benchmark results.
Original example
Keep an adapted policy near a reference model.
Original caveat
Not symmetric and not a distance metric.
Context and aliases
Level: Foundational. Stages: Theory · Training · Evaluation.
Tags: ML · DL · SLM · LLM.
Aliases: KL divergence · relative entropy.
Related concepts
Concepts linking here
Original references
- Deep Learning: online textbook ↗ · Consulted
- Mathematics for Machine Learning ↗ · Reference link
- Original reference URL ↗