Results 121 to 130 of about 697 (205)

Adaptive Estimation for Weakly Dependent Functional Times Series

Journal of Time Series Analysis, EarlyView.
ABSTRACT We propose adaptive mean and autocovariance function estimators for stationary functional time series under 𝕃p−m‐approximability assumptions. These estimators are designed to adapt to the regularity of the curves and to accommodate both sparse and dense data designs.
Hassan Maissoro, Valentin Patilea, Myriam Vimond   +2 more
wiley   +1 more source

A Coupled Refined Model of Atomistic and Continuum Parameters of Diatomic Covalent Bonds. [PDF]

Nanomaterials (Basel)
Hondliakh O, Antonyuk S, Weirich M, Paas S.   +3 more
europepmc   +1 more source

Some fixed points of multivalued maps in multiplicative metric spaces. [PDF]

Heliyon, 2022
Ige AO, Olaoluwa HO, Olaleru JO.
europepmc   +1 more source

Empirical‐Process Limit Theory and Filter Approximation Bounds for Score‐Driven Time Series Models

Journal of Time Series Analysis, EarlyView.
ABSTRACT This article examines the filtering and approximation‐theoretic properties of score‐driven time series models. Under specific Lipschitz‐type and tail conditions, new results are derived, leading to maximal and deviation inequalities for the filtering approximation error using empirical process theory.
Enzo D'Innocenzo
wiley   +1 more source

Moving-Target Tracking in Airport Airside Operations Using AIMM-STUKF. [PDF]

Sensors (Basel)
Gao J, Dang Y, Zhu Y, Xue W.
europepmc   +1 more source

Penalized Convex Estimation in Dynamic Location Models

Journal of Time Series Analysis, EarlyView.
ABSTRACT This paper studies L1$$ {L}^1 $$‐penalized estimation for location models yt=mt+ϵt$$ {y}_t={m}_t+{\epsilon}_t $$, where mt$$ {m}_t $$ is defined by a possibly non‐Markovian recursion and ϵt$$ {\epsilon}_t $$ is a martingale difference sequence with possibly time‐varying conditional variance.
Reda Alami Chentoufi
wiley   +1 more source

A Discrete Informational Framework for Classical Gravity: Ledger Foundations and Galaxy Rotation Curve Constraints. [PDF]

Entropy (Basel)
Simons M, Allahyarov E, Washburn J.
europepmc   +1 more source

Sparse Causal Dynamic Linear Regression

Journal of Time Series Analysis, EarlyView.
ABSTRACT We develop a sparse causal dynamic regression framework for long multivariate time series. With very long time series, the potentially large number of lags and leads in a dynamic regression model often makes time‐domain estimation numerically unstable or intractable.
Rui Huang, Kung‐Sik Chan
wiley   +1 more source

A novel intelligent control using RBFNN-class topper optimization for stability enhancement in hybrid standalone microgrid. [PDF]

Sci Rep
Myla AK, Gorantla SR.
europepmc   +1 more source

Assessing Digital Interactional Competence for Second‐Language and First‐Language Chinese Speakers: Effects of Proficiency, Mode, and Setting

Language Learning, EarlyView.
Abstract Measurement of interactional competence (IC) has attracted increasing interest in language assessment research. One key question is whether proficiency sufficiently accounts for IC, making separate IC assessment unnecessary. This study examines the IC–proficiency relationship using a test that assesses Chinese speakers’ ability to manage ...
David Wei Dai, Carsten Roever
wiley   +1 more source