Results 11 to 20 of about 1,408,791 (309)

Compound Poisson approximation

open access: yesProbability Surveys, 2022
Compound Poisson approximation appears naturally in situations where one deals with a large number of rare events. In this paper, results on the topic of compound approximation to the distribution of a sum of (possibly dependent) random variables are reviewed, and a number of open problems and directions of future research are indicated.
Čekanavičius, Vydas, Novak, S. Y.
openaire   +3 more sources

Relaxation of monotone coupling conditions: Poisson approximation and beyond [PDF]

open access: yesJournal of Applied Probability, 2017
It is well-known that assumptions of monotonicity in size-bias couplings may be used to prove simple, yet powerful, Poisson approximation results. Here we show how these assumptions may be relaxed, establishing explicit Poisson approximation bounds ...
Daly, Fraser, Johnson, Oliver
core   +6 more sources

On approximation of functions from the class $L^{\psi}_{\beta, 1}$ by the Abel-Poisson integrals in the integral metric

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2022
In the paper, we investigate an asymptotic behavior of the sharp upper bounds in the integral metric of deviations of the Abel-Poisson integrals from functions from the class $L^{\psi}_{\beta, 1}$.
T.V. Zhyhallo, Yu.I. Kharkevych
doaj   +2 more sources

Poisson approximation of the length spectrum of random surfaces [PDF]

open access: yes, 2017
Multivariate Poisson approximation of the length spectrum of random surfaces is studied by means of the Chen-Stein method. This approach delivers simple and explicit error bounds in Poisson limit theorems.
Petri, Bram, Thaele, Christoph
core   +6 more sources

On Poisson Approximation

open access: yesJournal of Theoretical Probability
AbstractThe problem of evaluating the accuracy of Poisson approximation to the distribution of a sum of independent integer-valued random variables has attracted a lot of attention in the past six decades. Among authors who contributed to the topic are Prokhorov, Kolmogorov, LeCam, Shorgin, Barbour, Hall, Deheuvels, Pfeifer, Roos, and many others. From
S. Novak
semanticscholar   +5 more sources

The lower tail: Poisson approximation revisited [PDF]

open access: yesRandom Struct. Algorithms, 2014
The well-known "Janson's inequality" gives Poisson-like upper bounds for the lower tail probability \Pr(X \le (1-\eps)\E X) when X is the sum of dependent indicator random variables of a special form.
Janson, Svante, Warnke, Lutz
core   +3 more sources

Inhomogeneous random graphs, isolated vertices, and Poisson approximation [PDF]

open access: yesJournal of Applied Probability, 2017
Consider a graph on randomly scattered points in an arbitrary space, with two points $x,y$ connected with probability $\phi(x,y)$. Suppose the number of points is large but the mean number of isolated points is $O(1)$.
Penrose, Mathew D.
core   +4 more sources

Stochastic Combinatorial Optimization via Poisson Approximation [PDF]

open access: yesSymposium on the Theory of Computing, 2013
We study several stochastic combinatorial problems, including the expected utility maximization problem, the stochastic knapsack problem and the stochastic bin packing problem.
Li, Jian, Yuan, Wen
core   +3 more sources

Asymptotics of approximation of functions by conjugate Poisson integrals

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2020
Among the actual problems of the theory of approximation of functions one should highlight a wide range of extremal problems, in particular, studying the approximation of functional classes by various linear methods of summation of the Fourier series. In
I.V. Kal'chuk   +2 more
doaj   +2 more sources

Poisson Approximation for Dependent Trials

open access: yesThe Annals of Probability, 1975
Let $X_1, \cdots, X_n$ be an arbitrary sequence of dependent Bernoulli random variables with $P(X_i = 1) = 1 - P(X_i = 0) = p_i.$ This paper establishes a general method of obtaining and bounding the error in approximating the distribution of $\sum^n_{i=1} X_i$ by the Poisson distribution.
Louis H. Y. Chen
openaire   +4 more sources

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