Computing the Skewness of the Phylogenetic Mean Pairwise Distance in Linear Time

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The phylogenetic Mean Pairwise Distance (MPD) is one of the most popular measures for computing the phylogenetic distance between a given group of species. More specifically, for a phylogenetic tree and for a set of species R represented by a subset of the leaf nodes of , the MPD of R is equal to the average cost of all possible simple paths in that connect pairs of nodes in R.

Among other phylogenetic measures, the MPD is used as a tool for deciding if the species of a given group R are closely related. To do this, it is important to compute not only the value of the MPD for this group but also the expectation, the variance, and the skewness of this metric. Although efficient algorithms have been developed for computing the expectation and the variance the MPD, there has been no approach so far for computing the skewness of this measure.
OriginalsprogEngelsk
Artikelnummer15
TidsskriftAlgorithms for Molecular Biology
Vol/bind9
Nummer1
Antal sider16
ISSN1748-7188
DOI
StatusUdgivet - 2014

Bibliografisk note

Expanded version of one of the best papers from the 13th International Workshop, WABI 2013

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