Meanings
plural Chapman-Robbins bounds
- mathematicsA lower bound on the variance of estimators of a deterministic parameter; a generalization of the Cramér-Rao bound, it is both tighter and more widely applicable, but usually harder to compute.
Synonyms: Hammersley-Chapman-Robbins bound
Synonyms & antonyms
nounA lower bound on the variance of estimators of a deterministic parameter; a generalization of the Cramér-Rao bound, it is both tighter and more widely applicable, but usually harder to compute.
Origin
Named after Douglas Chapman and Herbert Robbins, who discovered it in 1951, independently of the original (1950) discovery by John Hammersley.
Full word history & related roots →Cite this entry
Chapman-Robbins bound. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Chapman-Robbins%20bound
“Chapman-Robbins bound.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Chapman-Robbins%20bound. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “Chapman-Robbins bound,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Chapman-Robbins%20bound.
Source: Chapman-Robbins bound on Wiktionary, CC BY-SA 4.0.