نتایج جستجو برای: poisson regression

تعداد نتایج: 342994  

2015
Natalie Jayaram

Methods and Results-—Within the prospective Cardiac Arrest Registry to Enhance Survival (CARES), we identified children (age <18 years) with an OHCA from October 2005 to December 2013. Survival to hospital discharge by age (categorized as infants [0 to 1 year], younger children [2 to 7 years], older children [8 to 12 years], and teenagers [13 to 17 years]), sex, and race was assessed using modi...

2007
Natesh S. Pillai Robert L. Wolpert Merlise A. Clyde

We introduce a new truncation approach to extend earlier methods for proving consistency in nonparametric Bayesian regression problems to non-compact state spaces. We illustrate the approach by proving posterior consistency for a nonparametric Poisson regression model. The key step is separating points in the parameter space by constructing hypothesis tests with suitably small error rates; we d...

2007
M. J. Bayarri J. O. Berger G. S. Datta

The Poisson distribution is often used as a standard probability model for data involving counts. Quite often, however, such datasets are not well fit by a Poisson model because they contain more zero counts than are compatible with the Poisson model. For these situations, a zero-inflated Poisson (ZIP) distribution is often proposed. This article addresses testing a Poisson versus a ZIP model, ...

2016
Marina Litvak Jahna Otterbacher Chee Siang Ang David Atkins

A growing body of research exploits social media behaviors to gauge psychological characteristics, though trait empathy has received little attention. Because of its intimate link to the ability to relate to others, our research aims to predict participants’ levels of empathy, given their textual and friending behaviors on Facebook. Using Poisson regression, we compared the variance explained i...

باقری, آرزو, بی بی رازقی نصرآباد, حجیه, سعادتی, مهسا,

Background and Objectives: Changes in ideals and aspirations of childbearing are important factors in fertility behavior. Nowadays, fertility rate reduction below the replacement level and decreased childbearing ideals are the most common fertility challenges in Iran. So, with the decrease in the fertility rate, it is necessary to be aware of the ideal number of children and its determinants in...

1999
Mehdi Danech-Pajouh Farhad Mehran

1. Introduction. Illustrated manuscripts may be analysed in terms of both their texts and their illustrations. While statistical techniques have long been applied to the textual analysis of manuscripts, e.g., Lebart and Salem (1994), no corresponding pictorial analysis can be found in the art history literature. The purpose of this paper is to suggest that the field can benefit from statistical...

Journal: :Technometrics 2012
James M. McGree John A. Eccleston

We consider the problem of how to construct robust designs for Poisson regression models. An analytical expression is derived for robust designs for first-order Poisson regression models where uncertainty exists in the prior parameter estimates. Given certain constraints in the methodology, it may be necessary to extend the robust designs for implementation in practical experiments. With these ...

2008
Yoshinori Namikawa

In the remainder, we call such a variety a convex symplectic variety. A convex symplectic variety has been studied in [K-V], [Ka 1] and [G-K]. One of main difficulties we meet is the fact that tangent objects TX and T 1 Y are not finite dimensional, since Y may possibly have non-isolated singularities; hence the usual deformation theory does not work well. Instead, in [K-V], [G-K], they introdu...

2008
Yoshinori Namikawa

In the remainder, we call such a variety a convex symplectic variety. A convex symplectic variety has been studied in [K-V], [Ka 1] and [G-K]. One of main difficulties we meet is the fact that tangent objects TX and T 1 Y are not finite dimensional, since Y may possibly have non-isolated singularities; hence the usual deformation theory does not work well. Instead, in [K-V], [G-K], they introdu...

1989
Engelbert Stockhammer

2 Introduction 3 NAIRU vs. Keynes: conflicting theories of unemployment 4 Empirical work (review) 6 Econometric method 7 Testing the NAIRU story 8 Testing the Keynesian story 11 Combining NAIRU and Keynesian factors 12 Conclusion 14 Bibliography 15 Tables 17 Table 1. A NAIRU model 17 Table 2. A Keynesian model 18 Table 3. Unmployment regression: u = c + ∆ infl + rr + ud + tw + tot 19 Table 4. U...

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