Zobrazeno 1 - 10
of 250
pro vyhledávání: '"Maller, Ross A."'
A Bayesian nonparametric method of James, Lijoi \& Prunster (2009) used to predict future values of observations from normalized random measures with independent increments is modified to a class of models based on negative binomial processes for whi
Externí odkaz:
http://arxiv.org/abs/2402.11563
Autor:
Maller, Ross, Shemehsavar, Soudabeh
We derive large-sample and other limiting distributions of the ``frequency of frequencies'' vector, ${\bf M_n}$, together with the number of species, $K_n$, in a Poisson-Dirichlet or generalised Poisson-Dirichlet gene or species sampling model. Model
Externí odkaz:
http://arxiv.org/abs/2309.00815
The existence of immune or cured individuals in a population and whether there is sufficient followup in a sample of censored observations on their lifetimes to be confident of their presence are questions of major importance in medical survival anal
Externí odkaz:
http://arxiv.org/abs/2109.02817
We calculate finite sample and asymptotic distributions for the largest censored and uncensored survival times, and some related statistics, from a sample of survival data generated according to an iid censoring model. These statistics are important
Externí odkaz:
http://arxiv.org/abs/2103.01337
Autor:
Maller, Ross A., Resnick, Sidney I.
The i.i.d. censoring model for survival analysis assumes two independent sequences of i.i.d. positive random variables, $(T_i^*)_{1\le i\le n}$ and $(U_i)_{1\le i\le n}$. The data consists of observations on the random sequence $\big(T_i=\min(T_i^*,U
Externí odkaz:
http://arxiv.org/abs/2002.11239
We develop a model based on a generalised Poisson-Dirichlet distribution for the analysis of genetic diversity, and illustrate its use on microsatellite data for the genus Dasyurus (the quoll, a marsupial carnivore listed as near-threatened in Austra
Externí odkaz:
http://arxiv.org/abs/1904.13046
Autor:
Maller, Ross, Schindler, Tanja
We consider subordinators $X_\alpha=(X_\alpha(t))_{t\ge 0}$ in the domain of attraction at 0 of a stable subordinator $(S_\alpha(t))_{t\ge 0}$ (where $\alpha\in(0,1)$); thus, with the property that $\overline{\Pi}_\alpha$, the tail function of the ca
Externí odkaz:
http://arxiv.org/abs/1806.09763
We analyse a trimmed stochastic process of the form ${}^{(r)}X_t= X_t - \sum_{i=1}^r \Delta_t^{(i)}$, where $(X_t)_{t \geq 0}$ is a driftless subordinator on $\mathbb{R}$ with its jumps on $[0,t]$ ordered as $ \Delta_t^{(1)}\ge \Delta_t^{(2)} \cdots$
Externí odkaz:
http://arxiv.org/abs/1802.09814
Autor:
Ipsen, Yuguang Fan, Maller, Ross A.
The Poisson-Kingman distributions, $\mathrm{PK}(\rho)$, on the infinite simplex, can be constructed from a Poisson point process having intensity density $\rho$ or by taking the ranked jumps up till a specified time of a subordinator with L\'evy dens
Externí odkaz:
http://arxiv.org/abs/1802.02655
We derive characteristic function identities for conditional distributions of an r-trimmed Levy process given its r largest jumps up to a designated time t. Assuming the underlying Levy process is in the domain of attraction of a stable process as t
Externí odkaz:
http://arxiv.org/abs/1708.08344