Table 2

Exact algorithm vs heuristic.

Relative deviation

RF distance

Α

<a onClick="popup('http://www.biomedcentral.com/1471-2105/13/S19/S3/mathml/M18','MathML',630,470);return false;" target="_blank" href="http://www.biomedcentral.com/1471-2105/13/S19/S3/mathml/M18">View MathML</a>α(<a onClick="popup('http://www.biomedcentral.com/1471-2105/13/S19/S3/mathml/M7','MathML',630,470);return false;" target="_blank" href="http://www.biomedcentral.com/1471-2105/13/S19/S3/mathml/M7">View MathML</a>)

#adj

#edg

#exact results

exact

heuristic


0.001

-2.67%

2.83%

-0.23%

43

2

2

0.3

-3.47%

0.90%

0.31%

63

2

2

0.5

-4.26%

-1.03%

0.84%

61

2

2

0.8

-6.34%

-1.71%

1.14%

54

4

2

1

-8.41%

-2.39%

17.7%

48

6

2


Comparison of FFAdj-Int and FFAdj-MCS. The left side of the table shows the relative deviation in the objective function <a onClick="popup('http://www.biomedcentral.com/1471-2105/13/S19/S3/mathml/M21','MathML',630,470);return false;" target="_blank" href="http://www.biomedcentral.com/1471-2105/13/S19/S3/mathml/M21">View MathML</a>α(<a onClick="popup('http://www.biomedcentral.com/1471-2105/13/S19/S3/mathml/M7','MathML',630,470);return false;" target="_blank" href="http://www.biomedcentral.com/1471-2105/13/S19/S3/mathml/M7">View MathML</a>), the number of adjacencies (#adj), and the size of the resulting matching (#edg), of heuristic results from the exact solutions under varying values of α. On the right, the RF distances between the true tree and trees based on exact and heuristic results are listed.

Doerr et al. BMC Bioinformatics 2012 13(Suppl 19):S3   doi:10.1186/1471-2105-13-S19-S3

Open Data