On the agreement of many trees
Information Processing Letters
Kernels Based on Distributions of Agreement Subtrees
AI '08 Proceedings of the 21st Australasian Joint Conference on Artificial Intelligence: Advances in Artificial Intelligence
Uncovering Hidden Phylogenetic Consensus in Large Data Sets
IEEE/ACM Transactions on Computational Biology and Bioinformatics (TCBB)
Genes order and phylogenetic reconstruction: application to γ-proteobacteria
RCG'05 Proceedings of the 2005 international conference on Comparative Genomics
The Kernel of Maximum Agreement Subtrees
IEEE/ACM Transactions on Computational Biology and Bioinformatics (TCBB)
Identifying rogue taxa through reduced consensus: NP-Hardness and exact algorithms
ISBRA'12 Proceedings of the 8th international conference on Bioinformatics Research and Applications
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A Maximum Agreement SubTree (MAST) is a largest subtree common to a set of trees and serves as a summary of common substructure in the trees. A single MAST can be misleading, however, since there can be an exponential number of MASTs, and two MASTs for the same tree set do not even necessarily share any leaves. In this paper we introduce the notion of the Kernel Agreement SubTree (KAST), which is the summary of the common substructure in all MASTs, and show that it can be calculated in polynomial time (for trees with bounded degree). Suppose the input trees represent competing hypotheses for a particular phylogeny. We show the utility of the KAST as a method to discern the common structure of confidence, and as a measure of how confident we are in a given tree set.