prior distribution; prior probability distribution
Abbreviation of 事前確率分布. Used in Bayesian statistics to refer to the probability distribution before observing data.
See also: 事前確率分布 (じぜんかくりつぶんぷ)
In Bayesian estimation, the choice of prior distribution affects the results.
Full form of the same term; 事前分布 is the common abbreviation.
Posterior distribution, the updated probability distribution after observing data.
Compound of 事前 (prior, beforehand) and 分布 (distribution), calque from English 'prior distribution'.