Table 1

Commonly used variables and functions in this paper
<a onClick="popup('http://www.biomedcentral.com/1471-2105/13/256/mathml/M20','MathML',630,470);return false;" target="_blank" href="http://www.biomedcentral.com/1471-2105/13/256/mathml/M20">View MathML</a> A set of phylogenetic trees
Ti ith tree
m Number of trees in <a onClick="popup('http://www.biomedcentral.com/1471-2105/13/256/mathml/M21','MathML',630,470);return false;" target="_blank" href="http://www.biomedcentral.com/1471-2105/13/256/mathml/M21">View MathML</a>
n Number of taxa in each input tree
ai ith taxa
<a onClick="popup('http://www.biomedcentral.com/1471-2105/13/256/mathml/M22','MathML',630,470);return false;" target="_blank" href="http://www.biomedcentral.com/1471-2105/13/256/mathml/M22">View MathML</a> Frequency of the subtree T in <a onClick="popup('http://www.biomedcentral.com/1471-2105/13/256/mathml/M23','MathML',630,470);return false;" target="_blank" href="http://www.biomedcentral.com/1471-2105/13/256/mathml/M23">View MathML</a>
γ Frequency cutoff
Si ith seed (each seed is a subtree of a tree in <a onClick="popup('http://www.biomedcentral.com/1471-2105/13/256/mathml/M24','MathML',630,470);return false;" target="_blank" href="http://www.biomedcentral.com/1471-2105/13/256/mathml/M24">View MathML</a>)
k Size of a seed
c Number of contractions used to create a seed

Ramu et al.

Ramu et al. BMC Bioinformatics 2012 13:256   doi:10.1186/1471-2105-13-256

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