Central limit theorems for Fréchet means in the space of phylogenetic trees
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1. | Title | Title of document | Central limit theorems for Fréchet means in the space of phylogenetic trees |
2. | Creator | Author's name, affiliation, country | Dennis Barden; University of Cambridge; United Kingdom |
2. | Creator | Author's name, affiliation, country | Huiling Le; University of Nottingham; United Kingdom |
2. | Creator | Author's name, affiliation, country | Megan Owen; University of Waterloo; Canada |
3. | Subject | Discipline(s) | |
3. | Subject | Keyword(s) | central limit theorem; Frechet mean; phylogenetic trees; stratified manifold. |
3. | Subject | Subject classification | 60D05; 60F05 |
4. | Description | Abstract | This paper studies the characterisation, and the limiting distributions, of Fréchet means in the space of phylogenetic trees. This space is topologically stratified, as well as being a CAT(0) space. We use a generalised version of the Delta method to demonstrate non-classical behaviour arising from the global topological structure of the space. In particular, we show that, for the space of trees with four leaves, although they are related to the Gaussian distribution, the forms taken by the limiting distributions depend on the co-dimensions of the strata in which the Fréchet means lie. |
5. | Publisher | Organizing agency, location | |
6. | Contributor | Sponsor(s) | |
7. | Date | (YYYY-MM-DD) | 2013-02-16 |
8. | Type | Status & genre | Peer-reviewed Article |
8. | Type | Type | |
9. | Format | File format | |
10. | Identifier | Uniform Resource Identifier | http://ejp.ejpecp.org/article/view/2201 |
10. | Identifier | Digital Object Identifier | 10.1214/EJP.v18-2201 |
11. | Source | Journal/conference title; vol., no. (year) | Electronic Journal of Probability; Vol 18 |
12. | Language | English=en | en |
14. | Coverage | Geo-spatial location, chronological period, research sample (gender, age, etc.) | |
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