AI Foundationspredict · compress · act

concepts → Algorithm

Algorithm

Bayes' rule

timeless5 connections

turn a prior and a likelihood into a posterior — updating belief with evidence

the formal statement
p(h │ d) ∝ p(d │ h) · p(h)

Where it sits

The prism has six jobs across and eight layers down. Its primary cell isinfer × L0. Hatched cells cannot exist — a GPU does not learn, an institution does not infer.

What must come first — and what it unlocks

Left to right is reading order, derived from the prerequisite_of edges. Nothing here is hand-ordered: the diagram is the graph.

ProbabilityPriorBayes' ruleBayesian inference

Before it: Probability · Prior

Unlocks: Bayesian inference

What kind of thing it is — and what it is made of

It is made of: Posterior.

Where to read it

The chapter that introduces it, and any chapter that uses it again.

08Belief, Updatedact 2 · The Instruments

Where it comes from

paperA Mathematical Theory of CommunicationClaude E. Shannon · 1948

Every connection

All 5 edges touching this node, grouped by relation family — the sections above are highlights from this list. Colours match the relation families inthe atlas.

Structure · 1
has as a partPosteriorDistribution
Order · 3
requiresProbabilityField
must come beforeBayesian inferenceAlgorithm
requiresPriorDistribution
Flow · 1
usesLikelihoodQuantity

This page is a projection of one node in src/data/concepts.ts. It has no prose file of its own — 230 declared edges produce all 236 of these pages. Edit an edge and both endpoints change.