Results 51 to 60 of about 728 (114)

Concatenación temporal de modelos espaciales y su aplicación al estudio de la meningitis en España [PDF]

, 2001
La cartografía de enfermedades infecciosas en periodos sucesivos plantea la necesidad de su extensión al caso dinámico. En este trabajo proponemos la concatenación temporal de modelos auto-regresivos espaciales para abordar el análisis de mortalidad por ...
Ferrándiz, J., Martínez, F., Sanmartín, P.   +2 more
core   +3 more sources

Mediation analyses for the effect of antibodies in vaccination

Journal of Causal Inference
We review standard mediation assumptions as they apply to identifying antibody effects in a randomized vaccine trial and propose new study designs to allow the identification of an estimand that was previously unidentifiable. For these mediation analyses,
Fay Michael P., Follmann Dean A.
doaj   +1 more source

Indirect inference for survival data [PDF]

, 2003
In this paper we describe the so-called “indirect” method of inference, originally developed from the econometric literature, and apply it to survival analyses of two data sets with repeated events.
Jiang, Wenxin, Turnbull, Bruce W.
core   +5 more sources

Bayesian hierarchical models for analysing the spatial distribution of bioclimatic indices [PDF]

, 2017
A methodological approach for modelling the spatial distribution of bioclimatic indices is proposed in this paper. The value of the bioclimatic index is modelled with a hierarchical Bayesian model that incorporates both structured and unstructured random
Barber, Antoni, Barber, Xavier, Conesa Ortega, David, Lopez-Quílez, Antonio, Mayoral, Asuncion, Morales, Javier   +5 more
core  

Asymmetry tests for Bifurcating Auto-Regressive Processes with missing data

, 2011
We present symmetry tests for bifurcating autoregressive processes (BAR) when some data are missing. BAR processes typically model cell division data. Each cell can be of one of two types \emph{odd} or \emph{even}.
de Saporta, Benoîte, Gégout-Petit, Anne, Marsalle, Laurence   +2 more
core   +3 more sources

Smoothing-inspired lack-of-fit tests based on ranks

, 2008
A rank-based test of the null hypothesis that a regressor has no effect on a response variable is proposed and analyzed. This test is identical in structure to the order selection test but with the raw data replaced by ranks. The test is nonparametric in
Hart, Jeffrey D.
core   +1 more source

Using a Bayesian change-point statistical model with autoregressive terms to study the monthly number of dispensed asthma medications by public health services [PDF]

, 2018
In this paper, it is proposed a Bayesian analysis of a time series in the presence of a random change-point and autoregressive terms. The development of this model was motivated by a data set related to the monthly number of asthma medications dispensed ...
Casale Aragon, Davi, Marques de Mello, Luane, Martinez, Edson, Mota de Queiroz, José André, Santos Previdelli, Isolde Terezinha   +4 more
core  

A Test of Association between Qualitative Trait and a Set of SNPs [PDF]

, 2007
2000 Mathematics Subject Classification: 62P10, 92D10, 92D30, 62F03In this article, we propose a novel candidate-gene association test that utilizes a set of tightly linked single nucleotide polymorphisms (SNPs).
Milanov, Valentin, Nickolov, Radoslav
core  

Model selection and sensitivity analysis for sequence pattern models

, 2008
In this article we propose a maximal a posteriori (MAP) criterion for model selection in the motif discovery problem and investigate conditions under which the MAP asymptotically gives a correct prediction of model size. We also investigate robustness of
Gupta, Mayetri
core   +1 more source

Classification of Smoking Cessation Status Using Various Data Mining Methods [PDF]

, 2010
AMS Subj. Classification: 62P10, 62H30, 68T01This study examines different approaches of binary classification applied to the prob- lem of making distinction between former and current smokers.
Kartelj, Aleksandar
core