Results 21 to 30 of about 60,252,425 (165)

Modelación del número de neonatos con sífilis a partir del análisis de factores que influyen en el estado de gestación mediante una regresión de Poisson en el Departamento de Nariño [PDF]

, 2018
En este artículo se propone un modelo de regresión de Poisson para estudiar el número de casos de sífilis congénita a partir de variables explicativas optimas, durante el periodo de gestación, adicionalmente un análisis descriptivo de la relación entre ...
Hernández Unigarro, Andrés Alejandro, Chilaguad Realpe, Oscar Mauricio   +1 more
core   +1 more source

Learning sparse mixture‐of‐experts generalized linear models in ultrahigh dimensions

Canadian Journal of Statistics, EarlyView.
Abstract Motivated by the challenges of heterogeneity and high dimensionality in the analysis of modern data, we investigate continuous regularization methods for learning sparse mixture‐of‐experts generalized linear models (MoE‐GLM). Although there are foundational results about regularized estimators in a broad class of regression models including ...
Pengqi Liu, Abbas Khalili
wiley   +1 more source

Jackknife bias‐corrected variance estimation for the generalized regression estimator

Canadian Journal of Statistics, Volume 54, Issue 3, September 2026.
Abstract Commonly used variance estimators for the generalized regression estimator (GREG) are based on Taylor linearization and jackknife. Traditionally, a jackknife GREG variance estimator is obtained by jackknifing GREG, which consists of computing GREG from each of several subsamples of the parent sample, and estimating the variance of the parent ...
Marius Stefan, J.N.K Rao
wiley   +1 more source

Twisted Poincare duality for some quadratic Poisson algebras [PDF]

, 2007
We exhibit a Poisson module restoring a twisted Poincaré duality between Poisson homology and cohomology for the polynomial algebra R=C[X1Xn] endowed with Poisson bracket arising from a uniparametrised quantum affine space.
Stéphane Launois, Lionel Richard, Richard, Lionel, Launois, Stephane   +3 more
core   +1 more source

Ecology of declining populations of gray foxes (Urocyon cinereoargenteus) in Indiana, USA Ecología de las poblaciones en declive de zorros grises (Urocyon cinereoargenteus) en Indiana, EE.UU.

Wildlife Monographs, Volume 226, Issue 1, September 2026.
We estimated seasonal space use, cover selection, and resource selection; evaluated gene flow and potential genetic barriers; and assessed cause‐specific survival rates and reproduction of radiomarked gray foxes in Indiana, USA. Our results provide evidence that gray foxes in Indiana are an edge species with relatively large home ranges, relatively low
Tim L. Hiller, Julia A. Nawrocki, Brandon M. Bernhardt, Lane K. Jeakle, Dawn M. Reding, Geriann Albers   +5 more
wiley   +1 more source

Comparación entre árboles de regresión CART y regresión Lineal [PDF]

, 2013
Resumen: La Regresión lineal es el método más usado en estadística para predecir valores de variables continuas debido a su fácil interpretación, pero en muchas situaciones los supuestos para aplicar el modelo no se cumplen y algunos usuarios tienden a ...
Díaz Sepúlveda, Juan Felipe
core  

A goodness‐of‐fit test for regression models with discrete outcomes

Canadian Journal of Statistics, Volume 54, Issue 2, June 2026.
Abstract Regression models are often used to analyze discrete outcomes, but classical goodness‐of‐fit tests such as those based on the deviance or Pearson's statistic can be misleading or have little power in this context. To address this issue, we propose a new test, inspired by the work of Czado et al.
Lu Yang, Christian Genest, Johanna G. Nešlehová   +2 more
wiley   +1 more source

Factores asociados a la ansiedad en internos de medicina de una universidad privada en el contexto de la pandemia Covid-19

Revista de la Facultad de Medicina Humana, 2022
OBJETIVO: Determinar los factores asociados a la ansiedad en internos de medicina de una universidad privada en el contexto de la pandemia covid-19. MATERIAL Y MÉTODOS: El diseño del estudio es cuantitativo, observacional, analítico, retrospectivo ...
Efrain A. Cehua Alvarez, Joseph Alburqueque Melgarejo, Horus M. Viru Flores, Juan C. Roque-Quezada, Catherine A. Suárez Egoávil, Israrel A. Guerra   +5 more
doaj   +1 more source

Key drivers of at‐vessel mortality in demersal sharks

Conservation Biology, Volume 40, Issue 1, February 2026.
Abstract Chondrichthyans are highly vulnerable to fisheries overexploitation, and postcapture mortality poses a significant threat to most species. Global bycatch mitigation guidelines recommend adopting hierarchical decision‐making approaches tailored to species‐specific vulnerabilities and socioeconomic and regulatory contexts.
David Ruiz‐García, Claudio Barría, Juan A. Raga, David March   +3 more
wiley   +1 more source

Innovation Policy in an Emerging Economy: How Regional and Technological Disparities Moderate the Effects of a National Law

Review of Policy Research, Volume 43, Issue 1, January 2026.
ABSTRACT The Innovation Law, enacted in Brazil in 2004, laid the regulatory and institutional foundations for the national innovation system, aiming to promote closer interaction between universities, research institutions, and industry. However, nearly two decades after its implementation, its influence on the national innovation system remains ...
Breno Valente Fontes Araújo, Ana Claudia Azevedo, Fernanda Maria de Almeida, Cristiana Tristão Rodrigues   +3 more
wiley   +1 more source