Word
aleatoric uncertainty
Definition
n. uncertainty caused by natural randomness in the world, which cannot be removed by collecting more data.
n. irreducible uncertainty inherent in the underlying physical or data-generating process that persists even with infinite data.
Examples
“Sensor glare caused aleatoric uncertainty that no additional software training could eliminate.”
“Predicting the exact moment a coin lands involves aleatoric uncertainty due to tiny air movements.”
“Loss functions in computer vision separate heteroscedastic aleatoric uncertainty from model uncertainty by predicting per-pixel observation variance.”
Examples
simple
“Sensor glare caused aleatoric uncertainty that no additional software training could eliminate.”
contextual
“Predicting the exact moment a coin lands involves aleatoric uncertainty due to tiny air movements.”
complex
“Loss functions in computer vision separate heteroscedastic aleatoric uncertainty from model uncertainty by predicting per-pixel observation variance.”
Real-World Examples
“Aleatoric uncertainty refers to the data’s inherent randomness that cannot be explained away (*aleator*refers to someone who rolls the dice in Latin).” “Aleatoric uncertainty is a measure of the inherent complexity or randomness that arises from the process of observing data from a true system, such as the noise in the measurements obtained from devices.” Etymology
Formed from aleatoric (Latin alea, 'die, game of hazard') and uncertainty; popularized in modern risk assessment and deep probabilistic learning.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Domains
Scan code
englishreference.com/q/aleatoric-uncertainty