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A Metric on the Space of Reduced Phylogenetic Networks
April-June 2010 (vol. 7 no. 2)
pp. 218-222
Luay Nakhleh, Rice University, Houston
Phylogenetic networks are leaf-labeled, rooted, acyclic, and directed graphs that are used to model reticulate evolutionary histories. Several measures for quantifying the topological dissimilarity between two phylogenetic networks have been devised, each of which was proven to be a metric on certain restricted classes of phylogenetic networks. A biologically motivated class of phylogenetic networks, namely, reduced phylogenetic networks, was recently introduced. None of the existing measures is a metric on the space of reduced phylogenetic networks. In this paper, we provide a metric on the space of reduced phylogenetic networks that is computable in time polynomial in the size of the networks.

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Index Terms:
Phylogeny, phylogenetic network, indistinguishability, reduced phylogenetic network, metric.
Citation:
Luay Nakhleh, "A Metric on the Space of Reduced Phylogenetic Networks," IEEE/ACM Transactions on Computational Biology and Bioinformatics, vol. 7, no. 2, pp. 218-222, April-June 2010, doi:10.1109/TCBB.2009.2
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