MCDMSet similarity and presence-absence index
Sorensen-Dice 系数
Sorensen-Dice 系数,也称为 Dice 系数或 Czekanowski 指数,基于属性的存在与缺失来衡量两个集合或样本之间的相似度。该指数由 Thorvald Sorensen (1948) 和 Lee Dice (1945) 独立提出,其值范围从 0(完全不相似)到 1(完全相同)。它特别适用于二元的存在-缺失数据,并且是针对丰度数据的 Bray-Curtis 不相似性的对称对应项。
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来源
- Sorensen, T. (1948). A method of establishing groups of equal amplitude in plant sociology based on similarity of species content and its application to analyses of the vegetation on Danish commons. Biologiske Skrifter, 5, 1-34. link ↗
- Dice, L. R. (1945). Measures of the amount of ecologic association between species. Ecology, 26(3), 297-302. DOI: 10.2307/1932409 ↗
如何引用本页
ScholarGate. (2026, June 3). Sorensen-Dice Similarity Coefficient. ScholarGate. https://scholargate.app/zh/decision-making/sorensen-dice-coefficient
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