Results 61 to 70 of about 6,398 (252)

Robust Fault Detection in Monitoring Chemical Processes Using Multi-Scale PCA with KD Approach

ChemEngineering
Effective fault detection in chemical processes is of utmost importance to ensure operational safety, minimize environmental impact, and optimize production efficiency. To enhance the monitoring of chemical processes under noisy conditions, an innovative
K. Ramakrishna Kini, Muddu Madakyaru, Fouzi Harrou, Anoop Kishore Vatti, Ying Sun   +4 more
doaj   +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  

Alternative Data for Realised Volatility Forecasting: Limit Order Book and News Stories

International Journal of Finance &Economics, EarlyView.
ABSTRACT We examine whether two major alternative data sources, limit order book information and firm‐specific news, provide incremental predictive information for daily realised volatility forecasting within the HAR‐family, using a parsimonious framework to ensure practical implementation and comparability. The framework is designed for practical real‐
Eghbal Rahimikia, Ser‐Huang Poon
wiley   +1 more source

Using Deep Learning to Detect Anomalies in On-Load Tap Changer Based on Vibro-Acoustic Signal Features

Energies
An On-Load Tap Changer (OLTC) that regulates transformer voltage is one of the most important and strategic components of a transformer. Detecting faults in this component at early stages is, therefore, crucial to prevent transformer outages.
Fataneh Dabaghi-Zarandi, Vahid Behjat, Michel Gauvin, Patrick Picher, Hassan Ezzaidi, Issouf Fofana   +5 more
doaj   +1 more source

Steroidopathies and hormonal imbalance in children and adolescents with autism spectrum disorder

JCPP Advances, EarlyView.
Abstract Background Autism Spectrum Disorder (ASD) is a complex neurodevelopmental condition with a multifactorial etiology, many aspects of which remain unclear. Emerging evidence suggests a potential association between ASD and clinical manifestations resulting from hormonal imbalances, henceforth named “steroidopathies.” The present study aims to ...
Concetta de Giambattista, Patrizia Ventura, Samuele Cortese, Paolo Trerotoli, Alessandra Di Gioia, Lucia Margari   +5 more
wiley   +1 more source

A Bayesian approach to bandwidth selection for multivariate kernel regression with an application to state-price density estimation. [PDF]

Multivariate kernel regression is an important tool for investigating the relationship between a response and a set of explanatory variables. It is generally accepted that the performance of a kernel regression estimator largely depends on the choice of ...
Robert D. Brooks, Maxwell L. King, Xibin Zhang   +2 more
core  

Hyperhomocysteinemia and Vitamin B Deficiency as Potential Aggravating Factors in Huntington's Disease: A Prospective Monocentric Study

Movement Disorders, EarlyView.
Abstract Background Although not confirmed, some studies have suggested that elevated homocysteine levels are common in patients with Huntington's disease (HD). Its clinical relevance remains unclear. Objectives We aimed to assess vitamin B and homocysteine levels in HD patients and explore the relationships among hyperhomocysteinemia, vitamin B ...
Salomé Puisieux, Elise Pourié, Céline Bonnet, Lucie Hopes, Solène Frismand, Myriam Bronner, Virginie Roth, Marion Wandzel, Natacha Sloboda, Laetitia Lambert, Abderrahim Oussalah, Amélia Julien, Irina Rotaru, Rosa‐Maria Guéant‐Rodriguez, Jean Louis Guéant, Carine Bossenmeyer‐Pourié, Mathilde Renaud   +16 more
wiley   +1 more source

Nonparametric Density Estimation for Positive Time Series [PDF]

The Gaussian kernel density estimator is known to have substantial problems for bounded random variables with high density at the boundaries. For i.i.d. data several solutions have been put forward to solve this boundary problem. In this paper we propose
Jeroen V.K. Rombouts, Taoufik Bouezmarni
core  

Dress for success: climate pressures predict fur insulation and body size in natural and reintroduced populations of a threatened marsupial

Oikos, EarlyView.
Phenotypic variation in functional traits underpins responses to environmental gradients, influencing thermoregulation, energy balance, and long‐term persistence under climate extremes. Climate change is altering these gradients globally, yet in species that have already disappeared from much of their range, adaptive phenotypes may have also been lost,
Jack Bilby, Kenny J. Travouillon, Emma Sherratt, William K. Cornwell, Katherine Moseby   +4 more
wiley   +1 more source

Smoothing methods in biometry: a historic review

GMS Medizinische Informatik, Biometrie und Epidemiologie, 2005
In Germany around 25 years ago nonparametric smoothing methods have found their way into statistics and with some delay also into biometry. In the early 1980's there has been what one might call a boom in theoretical and soon after also in computational ...
Schimek, Michael G.
doaj