Title
Polyhedral combinatorics of UPGMA cones
Abstract
Distance-based methods such as UPGMA (Unweighted Pair Group Method with Arithmetic Mean) continue to play a significant role in phylogenetic research. We use polyhedral combinatorics to analyze the natural subdivision of the positive orthant induced by classifying the input vectors according to tree topologies returned by the algorithm. The partition lattice informs the study of UPGMA trees. We give a closed form for the extreme rays of UPGMA cones on n taxa, and compute the spherical volumes of the UPGMA cones for small n.
Year
DOI
Venue
2013
10.1016/j.aam.2012.10.002
Advances in Applied Mathematics
Keywords
Field
DocType
distance-based method,extreme ray,polyhedral combinatorics,arithmetic mean,small n,upgma tree,natural subdivision,unweighted pair group method,n taxon,upgma cone,closed form,phylogenetic trees
UPGMA,Discrete mathematics,Combinatorics,Orthant,Phylogenetic tree,Arithmetic mean,Partition lattice,Subdivision,Mathematics,Polyhedral combinatorics
Journal
Volume
Issue
ISSN
50
2
0196-8858
Citations 
PageRank 
References 
2
0.44
1
Authors
2
Name
Order
Citations
PageRank
Ruth Davidson121.79
Seth Sullivant29319.17