Search Results for author: Charles Semple

Found 4 papers, 0 papers with code

Phylogenetic trees defined by at most three characters

no code implementations15 Nov 2023 Katharina T. Huber, Simone Linz, Vincent Moulton, Charles Semple

In evolutionary biology, phylogenetic trees are commonly inferred from a set of characters (partitions) of a collection of biological entities (e. g., species or individuals in a population).

Quantifying the difference between phylogenetic diversity and diversity indices

no code implementations21 Apr 2023 Magnus Bordewich, Charles Semple

Phylogenetic diversity is a popular measure for quantifying the biodiversity of a collection $Y$ of species, while phylogenetic diversity indices provide a way to apportion phylogenetic diversity to individual species.

Counting and optimising maximum phylogenetic diversity sets

no code implementations15 Dec 2021 Kerry Manson, Charles Semple, Mike Steel

This leads to a polynomial-time algorithm for calculating the number of maximum PD sets of size $k$ by applying a generating function; we also investigate the types of tree shapes that harbour the most (or fewest) maximum PD sets of size $k$.

On the Complexity of Optimising Variants of Phylogenetic Diversity on Phylogenetic Networks

no code implementations16 Jul 2021 Magnus Bordewich, Charles Semple, Kristina Wicke

Phylogenetic Diversity (PD) is a prominent quantitative measure of the biodiversity of a collection of present-day species (taxa).

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