Research output: Contribution to journal › Article › peer-review
Gaps and interleaving of point processes in sampling from a residual allocation model. / Pitman, Jim; Yakubovich, Yuri.
In: Bernoulli, Vol. 25, No. 4B, 11.2019, p. 3623-3651.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Gaps and interleaving of point processes in sampling from a residual allocation model
AU - Pitman, Jim
AU - Yakubovich, Yuri
N1 - Pitman, Jim; Yakubovich, Yuri. Gaps and interleaving of point processes in sampling from a residual allocation model. Bernoulli 25 (2019), no. 4B, 3623--3651. doi:10.3150/19-BEJ1104. https://projecteuclid.org/euclid.bj/1569398779
PY - 2019/11
Y1 - 2019/11
N2 - This article presents a limit theorem for the gaps Ĝi:n := X n-i+1:n - X n-i:n between order statistics X 1:n≤ · · · ≤ X n:n of a sample of size n from a random discrete distribution on the positive integers (P 1,P 2, . .) governed by a residual allocation model (also called a Bernoulli sieve) P j := H j j-1 i=1 (1 - Hi ) for a sequence of independent random hazard variables Hi which are identically distributed according to some distribution of H ϵ (0, 1) such that -log(1 - H) has a non-lattice distribution with finite mean μlog. As n→∞the finite dimensional distributions of the gaps Ĝ+ i:n converge to those of limiting gaps Gi which are the numbers of points in a stationary renewal process with i.i.d. spacings -log(1-H j ) between times T i-1 and T i of births in a Yule process, that is T i:=Σ i k=1 ek/k for a sequence of i.i.d. exponential variables ϵ k with mean 1. A consequence is that the mean of Ĝ+ i:n converges to the mean of G i, which is 1/(iμ log). This limit theorem simplifies and extends a result of Gnedin, Iksanov and Roesler for the Bernoulli sieve.
AB - This article presents a limit theorem for the gaps Ĝi:n := X n-i+1:n - X n-i:n between order statistics X 1:n≤ · · · ≤ X n:n of a sample of size n from a random discrete distribution on the positive integers (P 1,P 2, . .) governed by a residual allocation model (also called a Bernoulli sieve) P j := H j j-1 i=1 (1 - Hi ) for a sequence of independent random hazard variables Hi which are identically distributed according to some distribution of H ϵ (0, 1) such that -log(1 - H) has a non-lattice distribution with finite mean μlog. As n→∞the finite dimensional distributions of the gaps Ĝ+ i:n converge to those of limiting gaps Gi which are the numbers of points in a stationary renewal process with i.i.d. spacings -log(1-H j ) between times T i-1 and T i of births in a Yule process, that is T i:=Σ i k=1 ek/k for a sequence of i.i.d. exponential variables ϵ k with mean 1. A consequence is that the mean of Ĝ+ i:n converges to the mean of G i, which is 1/(iμ log). This limit theorem simplifies and extends a result of Gnedin, Iksanov and Roesler for the Bernoulli sieve.
KW - GEM distribution
KW - interleaving of simple point processes
KW - residual allocation model
KW - stars and bars duality
KW - stationary renewal process
KW - Yule process
KW - EMPTY BOXES
KW - BRANCHING-PROCESSES
KW - NUMBER
KW - Stationary renewal process
KW - Residual allocation model
KW - Interleaving of simple point processes
KW - Stars and bars duality
UR - http://www.mendeley.com/research/gaps-interleaving-point-processes-sampling-residual-allocation-model
UR - http://www.scopus.com/inward/record.url?scp=85073009283&partnerID=8YFLogxK
U2 - 10.3150/19-bej1104
DO - 10.3150/19-bej1104
M3 - статья
VL - 25
SP - 3623
EP - 3651
JO - Bernoulli
JF - Bernoulli
SN - 1350-7265
IS - 4B
ER -
ID: 47509206