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Table 2 Direct information and essential information for each method

From: SGFSC: speeding the gene functional similarity calculation based on hash tables

Method

Direct information

Essential information

Explanation

Resnik

IC(LCA(t 1,t 2))

IC(t), t ∈ T(t 1), IC(t), t ∈ T(t 2)

The IC values of t, t ∈ T(t 1)

The IC values of t, t ∈ T(t 2)

Lin

IC(t 1), IC(t 2), IC(LCA(t 1,t 2))

  

Jiang

IC(t 1), IC(t 2), IC(LCA(t 1,t 2))

  

Pekar

Dep (LCA (t 1, t 2)), Dep(t 1), Dep(t 2)

Depth (t), t∈ T(t 1)

Depth (t), t∈ T(t 2)

The depth of t, t ∈ T(t 1)

The depth of t, t ∈ T(t 2)

Wang

∑(S t1(t) + S t2(t)), t ∈ T t1 ∩ T t2

SV(t 1), SV(t 2)

\( \begin{array}{l}{S}_{t_1}(t),t\in T\left({t}_1\right)\\ {}{S}_{t_2}(t),t\in T\left({t}_2\right)\end{array} \)

The S-values of t, t ∈ T(t 1)

The S-values of t, t ∈ T(t 2)

simUI

|A(g i ) ∩ A(g j )|, |A(g i ) ∪ A(g j )|

A(g i ), A(g 2)

 

simGIC

\( \begin{array}{l}{\displaystyle \sum IC(t),t}\in A\left({g}_i\right)\cap A\left({g}_j\right)\\ {}{\displaystyle \sum IC(t),t}\in A\left({g}_i\right)\cup A\left({g}_j\right)\end{array} \)

\( \begin{array}{l}IC\left({t}_1\right),{t}_1\in A\left({g}_i\right)\\ {}IC\left({t}_2\right),{t}_2\in A\left({g}_j\right)\end{array} \)

The IC values of t, t ∈ A(g i )

The IC values of t, t ∈ A(g j )