نتایج جستجو برای: poisson

تعداد نتایج: 33535  

Journal: :Journal of Algebra 2022

We prove that for the iterated Poisson polynomial rings known as nilpotent algebras (or Poisson-CGL extensions), prime spectrum is catenary, i.e., all saturated chains of inclusions ideals between any two given have same length.

ژورنال: پژوهش های ریاضی 2018
Yaghoubzadeh Shahrestani, Shahram,

Gompertz-Poisson distribution is a three-parameter lifetime distribution with increasing, decreasing, increasing-decreasing and unimodal shape failure rate function and a composition of Gompertz and Poisson distributions cut at zero point that in this paper estimated the parameters of the distribution by maximum likelihood method and in order to confirm the calculated estimates, based on random...

Journal: :Impressions d’Extrême-Orient 2020

ژورنال: طلوع بهداشت یزد 2017
جهان آرایی, زهرا, عسکری شاهی, محسن, فلاح زاده, حسین, لطفی, محمد حسن,

Introduction: Different statistical methods can be used to analyze fertility data. When the response variable is discrete, Poisson model is applied. If the condition does not hold for the Poisson model, its generalized model will be applied. The goal of this study was to compare the efficiency of generalized Poisson regression model with the standard Poisson regression model in estimating the c...

Journal: :journal of optimization in industrial engineering 2010
reza rabieyan mehdi seifbarghy

some servers are to be located at nodes of a network. demand for services of these servers is located at each node and a subset of the nodes is to be chosen to locate one server in each. each customer selects a server with a probability dependent on distance and a certain amount of benefit is achieved after giving service to the customer. customers may waive receiving service with a known proba...

2017
Fraser Daly

We explore negative dependence and stochastic orderings, showing that if an integer-valued random variable W satisfies a certain negative dependence assumption, then W is smaller (in the convex sense) than a Poisson variable of equal mean. Such W include those which may be written as a sum of totally negatively dependent indicators. This is generalised to other stochastic orderings. Application...

Journal: :DEStech Transactions on Computer Science and Engineering 2018

Journal: :Journal of Applied Probability 2015

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