Comparer des méthodes

	Distance de Canberra	Dissimilarité de Bray-Curtis
Domaine	Prise de décision	Prise de décision
Famille	MCDM	MCDM
Année d'origine	1967	1957
Auteur d'origine	Geoffrey Lance and William Williams	John Bray and John T. Curtis
Type	Normalized city-block distance	Ecological community similarity measure
Source fondatrice	Lance, G. N., & Williams, W. T. (1967). A general theory of classificatory sorting strategies. Computer Journal, 10(3), 271-277.	Bray, J. R., & Curtis, J. T. (1957). An ordination of the upland forest communities of southern Wisconsin. Ecological Monographs, 27(4), 325-349.
Alias	Canberra metric, normalized Manhattan distance	Bray-Curtis index, Sorensen-Bray-Curtis, percentage difference
Apparentées	1	3
Résumé	Canberra distance is a weighted version of the Manhattan distance that normalizes differences by the sum of absolute values. Introduced by Geoffrey Lance and William Williams in 1967 as part of their work on clustering classification methods, this metric emphasizes differences in small values and is sensitive to changes in relative proportions. It is commonly used in taxonomy, ecology, decision-making, and any application where normalized relative differences matter.	Bray-Curtis dissimilarity is a quantitative measure of compositional difference between two samples, widely used in ecology and community analysis. Introduced by John Bray and John T. Curtis in 1957 for comparing forest communities, this index ranges from 0 (identical composition) to 1 (completely different). It is sensitive to abundance differences and is particularly effective for abundance data such as species counts, microbial populations, or preference intensities.