Results 181 to 190 of about 6,450 (280)

S-estimation for penalized regression splines

, 2008
This paper is about S-estimation for penalized regression splines. Penalized regression splines are one of the currently most used methods for smoothing noisy data. The estimation method used for fitting such a penalized regression spline model is mostly based on least squares methods, which are known to be sensitive to outlying observations.
Tharmaratnam, Kukatharmini, Claeskens, Gerda, Croux, Christophe, Salibian-Barrera, Matias   +3 more
openaire   +1 more source

Longitudinal Study of Adolescent Brain Connectivity Development Using Sign‐Aware Graph Theory Metrics

Human Brain Mapping, Volume 47, Issue 8, June 1, 2026.
ABSTRACT Adolescence is marked by significant changes in brain network organization that underlie cognitive and behavioral development. The sensorimotor‐association (SA) axis has been proposed as a hierarchical framework for understanding functional connectivity development, but most studies rely on cross‐sectional data and treat positive and negative ...
Subhasri Viswanathan, Sean Spinney, Jeremy J. Watts, Patricia Conrod   +3 more
wiley   +1 more source

Time to benefit estimation in multicenter studies using flexible hazard shared frailty models. [PDF]

BMC Med Res Methodol
Lu M, Wu Z, Zhao Y, Shao F.
europepmc   +1 more source

Herbarium specimens reveal drivers of Arctic shrub growth

New Phytologist, Volume 251, Issue 2, Page 602-609, July 2026.
Natalie Iwanycki Ahlstrand, Zoe A. Panchen, Anne D. Bjorkman, James D. M. Speed   +3 more
wiley   +1 more source

TEMPORAL MODELS FOR ESTIMATION AND SHORT-TERM FORECASTING OF NEONATAL MORTALITY RATES IN SUB-SAHARAN AFRICA. [PDF]

Ann Appl Stat
Paulson KR, Fuglstad GA, Li ZR, Wakefield J.   +3 more
europepmc   +1 more source

Mitigating the risk of bias exacerbation when controlling for unmeasured spatial confounding for binary exposures. [PDF]

Am J Epidemiol
Li D, Cruz M, Mooney SJ, Cook AJ, Bobb JF.   +4 more
europepmc   +1 more source

Deciphering nodal burden in thyroid carcinoma: A dedicated survey of age, lymph node ratio, log odds of positive nodes, and preoperative prediction models

Journal of Intelligent Medicine, Volume 3, Issue 2, Page 169-191, June 2026.
Abstract Evidence regarding the prognosis of thyroid carcinoma is heterogeneous, ranging from age effects and nodal burden metrics, such as lymph node ratio (LNR) and log odds of positive nodes (LODDS), to preoperative imaging models comprising ultrasound, CEUS, and radiomics.
Mennatallah Sherif, Mohanad A. Deif, Eman K. Elsayed   +2 more
wiley   +1 more source

Association Between Serum Phosphorus and 28-Day Mortality in Patients with Bloodstream Infection: Potential Prognostic Implication Beyond Renal Function and Clinical Severity. [PDF]

Pathogens
Pu N, Xiong J, Sun Y, Li K, Guo Y.
europepmc   +1 more source

A marginal approach to reduced-rank penalized spline smoothing with application to multilevel functional data. [PDF]

J Am Stat Assoc, 2013
Chen H, Wang Y, Paik MC, Choi HA.
europepmc   +1 more source

Temperate lake heatwaves accelerate nonlinearly as timing synchronizes across a diverse landscape

Limnology and Oceanography, Volume 71, Issue 6, June 2026.
Abstract Temperate lakes are experiencing intensifying heatwaves, or prolonged periods of anomalously warm water, with potentially severe ecological consequences. Previous studies have predominantly used linear trend analyses to understand heatwave dynamics, potentially masking temporal acceleration patterns and shifts in variance.
Christopher J. Sullivan, L. Zoe Almeida
wiley   +1 more source