Word
perturbation
Phoneticsper·tur·ba·tion
US/ˌpɝtɝˈbeɪʃən/
UK/pətəbˈeɪʃən/
Definition
n. a small, intentional change made to an input, system, or setting to see how it responds.
n. a minor deviation, disturbance, or deliberate modification applied to input data, weights, or activations to evaluate system sensitivity, robustness, or causality.
Examples
“Adding subtle digital noise to the image was a perturbation designed to test the camera sensor.”
“Adversarial attacks introduce an imperceptible pixel perturbation that tricks the image model into misclassification.”
“Activation patching applies targeted representation perturbation at runtime to determine the causal role of individual layers in factual recall tasks.”
Examples
simple
“Adding subtle digital noise to the image was a perturbation designed to test the camera sensor.”
contextual
“Adversarial attacks introduce an imperceptible pixel perturbation that tricks the image model into misclassification.”
complex
“Activation patching applies targeted representation perturbation at runtime to determine the causal role of individual layers in factual recall tasks.”
Real-World Examples
“We introduce a novel metric ρ to quantitatively assess a classifier’s robustness against single-word perturbation.” Etymology
From Latin perturbatio ('confusion, disturbance'), from perturbare ('to confuse, disturb thoroughly'), from per- ('thoroughly') + turbare ('to agitate, disturb').
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Domains
Scan code
englishreference.com/q/perturbation