Limiting behaviour of Fréchet means in the space of phylogenetic trees
Limiting behaviour of Fréchet means in the space of phylogenetic trees
复制标题
系统发育树空间中 Fréchet 均值的限制行为
DOI:
10.1007/s10463-016-0582-9
复制
发表时间:
2016
影响因子:
1
通讯作者:
Barden D
中科院分区:
文献类型:
--
作者:
Barden D
As demonstrated in our previous work on $${\varvec{T}}_{\!4}$$, the space of phylogenetic trees with four leaves, the topological structure of the space plays an important role in the non-classical limiting behaviour of the sample Fréchet means in $${\varvec{T}}_{\!4}$$. Nevertheless, the techniques used in that paper cannot be adapted to analyse Fréchet means in the space $${\varvec{T}}_{\!m}$$ of phylogenetic trees withleaves. To investigate the latter, this paper first studies the log map of $${\varvec{T}}_{\!m}$$. Then, in terms of a modified version of this map, we characterise Fréchet means in $${\varvec{T}}_{\!m}$$ that lie in top-dimensional or co-dimension one strata. We derive the limiting distributions for the corresponding sample Fréchet means, generalising our previous results. In particular, the results show that, 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.
登录
查看更多内容
影响因子:
1
作者:
Bojan Basrak
通讯作者:
Bojan Basrak
影响因子:
0.9
作者:
I. Dryden;Huiling Le;S. Preston;A. Wood
通讯作者:
A. Wood
DOI:
--
发表时间:
1998
期刊:
影响因子:
--
作者:
D. Singer
通讯作者:
D. Singer
影响因子:
0.9
作者:
R. Bhattacharya;V. Patrangenaru
通讯作者:
V. Patrangenaru
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
K. Vogtmann;J. Smillie
通讯作者:
J. Smillie