Jeffreys prior

noun

In Bayesian probability, a non-informative (objective) prior distribution for a parameter space; it is proportional to the square root of the determinant of the Fisher information matrix.

Meanings

nounJeffreys prior (plural Jeffreys priors)

plural Jeffreys priors

  1. mathematicsIn Bayesian probability, a non-informative (objective) prior distribution for a parameter space; it is proportional to the square root of the determinant of the Fisher information matrix.

Origin

Named after Sir Harold Jeffreys.

Full word history & related roots →
Cite this entry
APA

Jeffreys prior. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Jeffreys%20prior

MLA

“Jeffreys prior.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Jeffreys%20prior. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “Jeffreys prior,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Jeffreys%20prior.

Source: Jeffreys prior on Wiktionary, CC BY-SA 4.0.