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Root-Mean-Square Deviation (RMSD)

nounid 5083·updated Aug 28, 2026
verified

of an estimator of a parameter[; ...] the square-root of the mean squared error (MSE) of the estimator. In symbols, if X is an estimator of the parameter t, then RMSE(X) = ( E( (X−t)2 ) )½. The RMSE of an estimator is a measure of the expected error of the estimator. The units of RMSE are the same as the units of the estimator.

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Classifications

Entity Type

Finding85%rule-basedr:entity.finding.audit.v1

Sensitivity

95%llm-generatedllm:claude-haiku-4-5

Information Class

95%llm-generatedllm:claude-haiku-4-5

Variants

synonym
root-mean-square error (RMSE)
plural
Root-Mean-Square Deviation (RMSD)S
possessive
Root-Mean-Square Deviation (RMSD)'s
pluralpossessive
Root-Mean-Square Deviation (RMSD)S'

Framework definitions

Glossary of Statistical Terms1 senseview framework →
§1
of an estimator of a parameter[; ...] the square-root of the mean squared error (MSE) of the estimator. In symbols, if X is an estimator of the parameter t, then RMSE(X) = ( E( (X−t)2 ) )½. The RMSE of an estimator is a measure of the expected error of the estimator. The units of RMSE are the same as the units of the estimator.
Root-mean-square-deviation1 senseview framework →
§1
a frequently used measure of the differences between values (sample or population values) predicted by a model or an estimator and the values observed
Legacy lexicon import1 senseview framework →
§1 · legacy_primary
of an estimator of a parameter[; ...] the square-root of the mean squared error (MSE) of the estimator. In symbols, if X is an estimator of the parameter t, then RMSE(X) = ( E( (X−t)2 ) )½. The RMSE of an estimator is a measure of the expected error of the estimator. The units of RMSE are the same as the units of the estimator.
DR-088 backfill from the noun definition column

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