The Bergman complex of a matroid and phylogenetic trees
Journal of Combinatorial Theory Series B
The positive Bergman complex of an oriented matroid
European Journal of Combinatorics
Approximating geodesic tree distance
Information Processing Letters
Nested set complexes of Dowling lattices and complexes of Dowling trees
Journal of Algebraic Combinatorics: An International Journal
Speculation on the generality of the backward stepwise view of PCA
Proceedings of the international conference on Multimedia information retrieval
Visualizing phylogenetic treespace using cartographic projections
WABI'09 Proceedings of the 9th international conference on Algorithms in bioinformatics
Nonlinear network optimization: an embedding vector space approach
IEEE Transactions on Evolutionary Computation
A Fast Algorithm for Computing Geodesic Distances in Tree Space
IEEE/ACM Transactions on Computational Biology and Bioinformatics (TCBB)
Geometries on spaces of treelike shapes
ACCV'10 Proceedings of the 10th Asian conference on Computer vision - Volume Part II
Horoball hulls and extents in positive definite space
WADS'11 Proceedings of the 12th international conference on Algorithms and data structures
Computing Geodesic Distances in Tree Space
SIAM Journal on Discrete Mathematics
Shortest path problem in rectangular complexes of global nonpositive curvature
Computational Geometry: Theory and Applications
Tree-space statistics and approximations for large-scale analysis of anatomical trees
IPMI'13 Proceedings of the 23rd international conference on Information Processing in Medical Imaging
Dimension reduction in principal component analysis for trees
Computational Statistics & Data Analysis
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We consider a continuous space which models the set of all phylogenetic trees having a fixed set of leaves. This space has a natural metric of nonpositive curvature, giving a way of measuring distance between phylogenetic trees and providing some procedures for averaging or combining several trees whose leaves are identical. This geometry also shows which trees appear within a fixed distance of a given tree and enables construction of convex hulls of a set of trees. This geometric model of tree space provides a setting in which questions that have been posed by biologists and statisticians over the last decade can be approached in a systematic fashion. For example, it provides a justification for disregarding portions of a collection of trees that agree, thus simplifying the space in which comparisons are to be made.