Bayesian
Say it: BAY-zee-un /ˈbeɪzɪən/ · adjective
What “Bayesian” means
Updating beliefs using new evidence and what you already know.
More precisely: Updating your beliefs step by step as new evidence arrives, weighed against what you already knew.
When to use it
In statistics or careful decision-making, to describe revising an initial belief by weighing new evidence against existing knowledge.
Similar words
probabilistic, evidence-based
Where it comes from
Named after Thomas Bayes, an 18th-century English statistician and minister.
Quick check
You begin with the weather forecast, then revise your chance of rain as reliable new observations arrive. Your approach is…
Bayesian or deterministic?
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Bayesian
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