Table 2.

Selected combinations of algorithms

Triple#	IC	Code-level Similarity (CS)	Set-level Similarity (SS)
< 1,2,5>	levels(a → r)	$1-\frac{2\mathit{IC}\left(c\right)}{\mathit{IC}\left(a\right)+\mathit{IC}\left(b\right)}$	$\frac{1}{\left|A\right|+\left|B\right|}\bullet \left(\sum _{a\in A}\underset{b\in B}{min}\mathit{CS}\left(a,b\right)+\sum _{b\in B}\underset{a\in A}{min}\mathit{CS}\left(b,a\right)\right)$
< 1,2,6>			$\frac{\left({\sum }_{a\in A}\frac{1}{\left|B\right|}{\sum }_{b\in B}\mathit{CS}\left(a,b\right)+{\sum }_{b\in B}\frac{1}{\left|A\right|}{\sum }_{a\in A}\mathit{CS}\left(b,a\right)\right)}{\left|A\cup B\right|}$
< 1,2,7>			$\frac{1}{\left|A\right|\bullet \left|B\right|}\bullet \left(\sum _{a\in A,b\in B}\mathit{CS}\left(a,b\right)\right)$
< 1,2,8>			Minimum Weighted Bipartite Matching
< 2,2,5>	$-log\left(\frac{\frac{\left|\mathit{\text{leaves}}\left(a\right)\right|}{\left|\mathit{\text{subsumers}}\left(a\right)\right|}+1}{\left|\mathit{\text{leaves}}\left(r\right)\right|+1}\right)$	$1-\frac{2\mathit{IC}\left(c\right)}{\mathit{IC}\left(a\right)+\mathit{IC}\left(b\right)}$	$\frac{1}{\left|A\right|+\left|B\right|}\bullet \left(\sum _{a\in A}\underset{b\in B}{min}\mathit{CS}\left(a,b\right)+\sum _{b\in B}\underset{a\in A}{min}\mathit{CS}\left(b,a\right)\right)$
< 2,2,6>			$\frac{\left({\sum }_{a\in A}\frac{1}{\left|B\right|}{\sum }_{b\in B}\mathit{CS}\left(a,b\right)+{\sum }_{b\in B}\frac{1}{\left|A\right|}{\sum }_{a\in A}\mathit{CS}\left(b,a\right)\right)}{\left|A\cup B\right|}$
< 2,2,7>			$\frac{1}{\left|A\right|\bullet \left|B\right|}\bullet \left(\sum _{a\in A,b\in B}\mathit{CS}\left(a,b\right)\right)$
< 2,2,8>			Minimum Weighted Bipartite Matching
< 1,3,8>	levels(a → r)	$1-e^{\alpha \left(\mathit{IC}\left(a\right)+\mathit{IC}\left(b\right)-2\mathit{IC}\left(c\right)\right)}\bullet \frac{e^{\mathit{\beta IC}\left(c\right)}-e^{-\mathit{\beta IC}\left(c\right)}}{e^{\mathit{\beta IC}\left(c\right)}+e^{-\mathit{\beta IC}\left(c\right)}}$	Minimum Weighted Bipartite Matching
< 1,4,8>	levels(a → r)	$\frac{\mathit{IC}\left(l\right)-\mathit{IC}\left(c\right)}{\mathit{IC}\left(l\right)}$	Minimum Weighted Bipartite Matching