نتایج جستجو برای: poisson regression test

تعداد نتایج: 1103181  

Journal: :CoRR 2017
Richard Futrell Roger Levy Matthew Dryer

A frequent object of study in linguistic typology is the order of elements {demonstrative, adjective, numeral, noun} in the noun phrase. The goal is to predict the relative frequencies of these orders across languages. Here we use Poisson regression to statistically compare some prominent accounts of this variation. We compare feature systems derived from Cinque (2005) to feature systems given ...

2004
Timothy J. Hodges Milen Yakimov TIMOTHY J. HODGES MILEN YAKIMOV

We show that each triangular Poisson Lie group can be decomposed into Poisson submanifolds each of which is a quotient of a symplectic manifold. The Marsden–Weinstein–Meyer symplectic reduction technique is then used to give a complete description of the symplectic foliation of all triangular Poisson structures on Lie groups. The results are illustrated in detail for the generalized Jordanian P...

Journal: :Computational Statistics & Data Analysis 2009
Tonglin Zhang Ge Lin

The likelihood ratio spatial scan statistic has been widely used in spatial disease surveillance and spatial cluster detection applications. In order to better understand cluster mechanisms, an equivalent model-based approach is proposed to the spatial scan statistic that unifies currently loosely coupled methods for including ecological covariates in the spatial scan test. In addition, the uti...

Journal: : 2023

Regression models are one of the most important used in modern studies, especially research and health studies because results they achieve. Two regression were used: Poisson Model Conway-Max Well- Poisson), where this study aimed to make a comparison between two choose best them using simulation method at different sample sizes (n = 25,50,100) with repetitions (r 1000). The Matlab program was ...

2003
Ming Yuan

Adaptive choice of smoothing parameters for nonparametric Poisson regression (O’Sullivan et. al., 1986) is considered in this paper. A computable approximation of the unbiased risk estimate (AUBR) for Poisson regression is introduced. This approximation can be used to automatically tune the smoothing parameter for the penalized likelihood estimator. An alternative choice is the generalized appr...

Introduction & Aim : After urinary tract infections and prostate diseases, urolithiasis are the third cause of referral to urological clinics. The purpose of this study was to investigate the association of urolithiasis with risk factors . Methods & materials : This is a cross-sectional descriptive-analytic study. The sample size was 200 patients and The data collection tool was a questionnair...

Background and purpose: Modeling of Hospital Length of Stay (LOS) is of great importance in healthcare systems, but there is paucity of information on this issue in Iran. The aim of this study was to identify the optimal model among different mixed poisson distributions in modeling the LOS and effective factors. Materials and methods: In this cross-sectional study, we studied 1256 records, inc...

Journal: :Computational Statistics & Data Analysis 2004
Felix Famoye Weiren Wang

This paper develops a censored generalized Poisson regression model that can be used to predict a response variable that is a2ected by one or more explanatory variables. The censored generalized Poisson regression model is suitable for modeling count data that exhibit either overor under-dispersion. The regression parameters are estimated by the method of maximum likelihood and approximate test...

2003
Leandro Pardo

In this paper we present a review of some results about inference based on φ-divergence measures, under assumptions of multinomial sampling and loglinear models. The minimum φ-divergence estimator, which is seen to be a generalization of the maximum likelihood estimator is considered. This estimator is used in a φdivergence measure which is the basis of new statistics for solving three importan...

2004
Victor Boyarshinov Malik Magdon-Ismail

We consider L1-isotonic regression and L∞ isotonic and unimodal regression. For L1isotonic regression, we present a linear time algorithm when the number of outputs are bounded. We extend the algorithm to construct an approximate isotonic regression in linear time when the output range is bounded. We present linear time algorithms for L∞ isotonic and unimodal regression.

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