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Algorithms for the Majority Rule (+) Consensus Tree and the Frequency Difference Consensus Tree (1307.7821v2)
Published 30 Jul 2013 in cs.DS, cs.CE, and q-bio.QM
Abstract: This paper presents two new deterministic algorithms for constructing consensus trees. Given an input of k phylogenetic trees with identical leaf label sets and n leaves each, the first algorithm constructs the majority rule (+) consensus tree in O(kn) time, which is optimal since the input size is Omega(kn), and the second one constructs the frequency difference consensus tree in min(O(kn2), O(kn (k+log2 n))) time.