Up-down ordered Chinese restaurant processes with two-sided immigration, emigration and diffusion limits
Up-down ordered Chinese restaurant processes with two-sided immigration, emigration and diffusion limits
复制标题
具有双向出入、出出和扩散限制的自上而下有序的中餐馆流程
DOI:
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Matthias Winkel
中科院分区:
文献类型:
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作者:
Quan Shi;Matthias Winkel
We introduce a three-parameter family of up-down ordered Chinese restaurant processes PCRP(θ1, θ2), α ∈ (0,1), θ1, θ2 ≥ 0, generalising the two-parameter family of Rogers and Winkel. Our main result establishes self-similar diffusion limits, SSIP(θ1, θ2)-evolutions generalising existing families of interval partition evolutions. We use the scaling limit approach to extend stationarity results to the full three-parameter family, identifying an extended family of Poisson–Dirichlet interval partitions. Their ranked sequence of interval lengths has Poisson–Dirichlet distribution with parameters α ∈ (0,1) and θ := θ1 + θ2 − α≥−α, including for the first time the usual range of θ >−α rather than being restricted to θ ≥ 0. This has applications to Fleming–Viot processes, nested interval partition evolutions and tree-valued Markov processes, notably relying on the extended parameter range.
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影响因子:
1
作者:
Sørensen F
通讯作者:
Sørensen F
DOI:
10.1214/21-aap1732
发表时间:
2022
期刊:
The Annals of Applied Probability
影响因子:
--
作者:
Forman, Noah;Rizzolo, Douglas;Shi, Quan;Winkel, Matthias
通讯作者:
Winkel, Matthias
DOI:
10.1214/22-aihp1256
发表时间:
2023
期刊:
Probabilités et Statistiques
影响因子:
--
作者:
Rivera-Lopez, Kelvin;Rizzolo, Douglas
通讯作者:
Rizzolo, Douglas
影响因子:
1.4
作者:
Forman, Noah;Rizzolo, Douglas;Shi, Quan;Winkel, Matthias
通讯作者:
Winkel, Matthias