Results 121 to 130 of about 117,399 (299)

Testing Heteroscedasticity in Nonparametric Regression Based on Trend Analysis

Journal of Applied Mathematics, 2014
We first propose in this paper a new test method for detecting heteroscedasticity of the error term in nonparametric regression. Some simulation experiments are then conducted to evaluate the performance of the proposed methodology. A real-world data set
Si-Lian Shen, Jian-Ling Cui, Chun-Wei Wang   +2 more
doaj   +1 more source

A SIEVE STOCHASTIC GRADIENT DESCENT ESTIMATOR FOR ONLINE NONPARAMETRIC REGRESSION IN SOBOLEV ELLIPSOIDS. [PDF]

Ann Stat, 2022
Zhang T, Simon N.
europepmc   +1 more source

Feasible Multivariate Nonparametric Estimation Using Weak Separability [PDF]

One of the main practical problems of nonparametric regression estimation is the curse of dimensionality. The curse of dimensionality arises because nonparametric regression estimates are dependent variable averages local to the point at which the ...
Joris Pinkse
core  

Electrocardiographic and Skin Manifestations of Turner Syndrome: Association With Cardiovascular Disease

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Congenital heart disease (CHD) and dermatologic conditions such as lymphedema and acquired melanocytic nevi (AMN) are common in Turner Syndrome (TS). We hypothesized that abnormalities of cranial neural crest cell derivatives drive the skin and heart manifestations of TS. We conducted joint cardiac and skin examinations of volunteers at a 2023
Sarah Elsaim, Brett Vernier, Van Thi Thanh Truong, Riya T. Patel, Matthew Brown, Martin Chacon Portillo, Megan Rogge, David Rodriguez‐Buritica, Siddharth K. Prakash   +8 more
wiley   +1 more source

Predicting extreme VaR: Nonparametric quantile regression with refinements from extreme value theory [PDF]

This paper studies the performance of nonparametric quantile regression as a tool to predict Value at Risk (VaR). The approach is flexible as it requires no assumptions on the form of return distributions.
Julia Schaumburg
core  

Assessing Progression Independent of Relapse Activity in Multiple Sclerosis Using a Patient‐Reported Disability Measure and Self‐Administered Neuroperformance Outcomes

Annals of Neurology, EarlyView.
Objective The objective of this study was to investigate the ability of patient‐reported/administered outcomes to capture disability worsening and progression independent of relapse activity (PIRA) in multiple sclerosis (MS). Methods We included patients from the longitudinal multicenter MS PATHS cohort with ≥3 assessments and >6 months follow‐up. PIRA
Evy M. Reinders, Ariadna Masot‐Llima, Susana Otero‐Romero, René Carvajal, Álvaro Cobo‐Calvo, Pere Carbonell‐Mirabent, Jordina Beltran, Maria Jesús Arévalo, Helena Ariño, Georgina Arrambide, Cristina Auger, Luca Bollo, Joaquín Castilló, Manuel Comabella, Ingrid Galán, Alexis García‐Sarreón, Andrew Goodman, Carrie M. Hersh, Delon La Puma, Le H. Hua, Luciana Midaglia, Neus Mongay‐Ochoa, Ellen M. Mowry, Agustín Pappolla, Breogán Rodríguez‐Acevedo, Jordi Río, Paula Tagliani, Ángela Vidal‐Jordana, Andreu Vilaseca, Ana Zabalza, Deborah Pareto, Carlos Nos, Menno Schoonheim, Eva Strijbis, Jaume Sastre‐Garriga, Madalina Tivarus, Tjalf Ziemssen, Àlex Rovira, Xavier Montalban, Mar Tintoré, Carmen Tur   +40 more
wiley   +1 more source

Determination of the best knot and bandwidth in geographically weighted truncated spline nonparametric regression using generalized cross validation. [PDF]

MethodsX, 2023
Putra R, Fadhlurrahman MG, Gunardi.
europepmc   +1 more source

Nonparametric Econometrics: The np Package [PDF]

We describe the R np package via a series of applications that may be of interest to applied econometricians. The np package implements a variety of nonparametric and semiparametric kernel-based estimators that are popular among econometricians.
Tristen Hayfield, Jeffrey S. Racine
core   +1 more source

Hyperacute Interleukin‐1β Production and Neutrophil Extracellular Trap Formation in the Cerebral Circulation of Stroke Patients with Large Vessel Occlusion

Annals of Neurology, EarlyView.
Acute ischemic stroke due to large vessel occlusion is associated with rapid intravascular immune activation. Analysis of arterial blood sampled distal to the thrombus during mechanical thrombectomy revealed increased extracellular adenosine triphosphate (ATP) and interleukin‐1β (IL‐1β) levels, evidence of inflammasome priming in monocytes, and ...
Justine Münsterberg, Caspar Brekenfeld, Hanna Englert, Marius Piepke, Regine J. Dress, Martin Oertel, Tina Fischer, Romy Hackbusch, Mingming Zha, Haodi Cai, Christian Casar, Ines S. Schädlich, Leo Winter, Alina Jander, Karoline Degenhardt, Maxim Bester, Fabian Flottmann, Uta Hanning, Brigitte Holst, Anna Worthman, Johanna Hiefner, Berenike Rutz, Eckhard Schlemm, Götz Thomalla, Bettina H. Clausen, Ann M. Stowe, Immo Prinz, Thiruma V. Arumugam, Markus Glatzel, Thomas Renné, Jens Fiehler, Eva Tolosa, Tim Magnus, Mathias Gelderblom   +33 more
wiley   +1 more source

Nonparametric Regression [PDF]

, 2009
Paul P. B. Eggermont, Vincent N. LaRiccia   +1 more
  +5 more sources