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Table 2 Groups of identical equations

From: Finding an appropriate equation to measure similarity between binary vectors: case studies on Indonesian and Japanese herbal medicines

Groups

Eliminated Equations

Selected Equations

1

\( {S}_{Nei\&Li}=\frac{2a}{\left(a+b\right)+\left(a+c\right)} \) (Eq.5)

\( {S}_{Dice-1/ Czekanowski}=\frac{2a}{2a+b+c} \) (Eq.3)

2

\( {S}_{Gower\& Legendre}=\frac{a+d}{a+0.5\left(b+c\right)+d} \) (Eq.11)

\( {S}_{Sokal\& Sneath-2}=\frac{2\left(a+d\right)}{2a+b+c+2d} \) (Eq.8)

3

\( {D}_{Squared- euclid}=\sqrt{{\left(b+c\right)}^2} \) (Eq.17)

D Hamming  = b + c (Eq.15)

\( {D}_{Canberra}={\left(b+c\right)}^{\frac{2}{2}} \) (Eq.18)

D Manhattan  = b + c (Eq.19)

D Cityblock  = b + c (Eq.21)

\( {D}_{Minkowski}={\left(b+c\right)}^{\frac{1}{1}} \) (Eq.22)

4

\( {D}_{Bray\& Curtis}=\frac{b+c}{2a+b+c} \) (Eq.28)

\( {D}_{Lance\& Williams}=\frac{b+c}{2a+b+c} \) (Eq.27)

5

\( {S}_{Ochiai-1}=\frac{a}{\sqrt{\left(a+b\right)\left(a+c\right)}} \) (Eq.33)

\( {S}_{Cosine}=\frac{a}{\sqrt{\left(a+b\right)\left(a+c\right)}} \) (Eq.31)

\( {S}_{Otsuka}=\frac{a}{{\left(\left(a+b\right)\left(a+c\right)\right)}^{0.5}} \) (Eq.38)

6

\( {S}_{Ochiai-2}=\frac{ad}{\sqrt{\left(a+b\right)\left(a+c\right)\left(b+d\right)\left(c+d\right)}} \) (Eq.60)

\( {S}_{Sokal\& Sneath-5}=\frac{ad}{\left(a+b\right)\left(a+c\right)\left(b+d\right){\left(c+d\right)}^{0.5}} \) (Eq.57)

7

\( {S}_{Tanimoto}=\frac{a}{\left(a+b\right)+\left(a+c\right)-a} \) (Eq.65)

\( {S}_{Jaccard}=\frac{a}{a+b+c} \) (Eq.1)