Results 1 to 10 of about 30 (29)

Kolmogorov Entropy for Convergence Rate in Incomplete Functional Time Series: Application to Percentile and Cumulative Estimation in High Dimensional Data [PDF]

Entropy, 2023
The convergence rate for free-distribution functional data analyses is challenging. It requires some advanced pure mathematics functional analysis tools.
Ouahiba Litimein, Fatimah Alshahrani, Salim Bouzebda, Ali Laksaci, Boubaker Mechab   +4 more
doaj   +2 more sources

Functional Ergodic Time Series Analysis Using Expectile Regression

Mathematics, 2022
In this article, we study the problem of the recursive estimator of the expectile regression of a scalar variable Y given a random variable X that belongs in functional space.
Fatimah Alshahrani, Ibrahim M. Almanjahie, Zouaoui Chikr Elmezouar, Zoulikha Kaid, Ali Laksaci, Mustapha Rachdi   +5 more
doaj   +1 more source

Nonparametric Estimation of the Expected Shortfall Regression for Quasi-Associated Functional Data

Mathematics, 2022
In this paper, we study the nonparametric estimation of the expected shortfall regression when the exogenous observation is functional. The constructed estimator is obtained by combining the double kernels estimator of both conditional value at risk and ...
Larbi Ait-Hennani, Zoulikha Kaid, Ali Laksaci, Mustapha Rachdi   +3 more
doaj   +1 more source

Scalar-on-Function Relative Error Regression for Weak Dependent Case

Axioms, 2023
Analyzing the co-variability between the Hilbert regressor and the scalar output variable is crucial in functional statistics. In this contribution, the kernel smoothing of the Relative Error Regression (RE-regression) is used to resolve this problem ...
Zouaoui Chikr Elmezouar, Fatimah Alshahrani, Ibrahim M. Almanjahie, Zoulikha Kaid, Ali Laksaci, Mustapha Rachdi   +5 more
doaj   +1 more source

Estimating the Conditional Density in Scalar-On-Function Regression Structure: k-N-N Local Linear Approach

Mathematics, 2022
In this study, the problem of conditional density estimation of a scalar response variable, given a functional covariable, is considered. A new estimator is proposed by combining the k-nearest neighbors (k-N-N) procedure with the local linear approach ...
Ibrahim M. Almanjahie, Zoulikha Kaid, Ali Laksaci, Mustapha Rachdi   +3 more
doaj   +1 more source

Smooth kNN Local Linear Estimation of the Conditional Distribution Function

Mathematics, 2021
Previous works were dedicated to the functional k-Nearest Neighbors (kNN) and the local linearity method estimations of a regression operator. In this paper, a sequence pair of (Xi,Yi)i=1,…,n of functional mixing observations are considered. We treat the
Ibrahim M. Almanjahie, Zouaoui Chikr Elmezouar, Ali Laksaci, Mustapha Rachdi   +3 more
doaj   +1 more source

Flux, toxicity, and expression costs generate complex genetic interactions in a metabolic pathway. [PDF]

Sci Adv, 2020
Kemble H, Eisenhauer C, Couce A, Chapron A, Magnan M, Gautier G, Le Nagard H, Nghe P, Tenaillon O.   +8 more
europepmc   +1 more source

SIDELIGHTS ON THE INFERIOR OBLIQUE MUSCLE. [PDF]

Br J Ophthalmol, 1948
Anderson JR.
europepmc   +1 more source

Widespread loss of sleep in independently evolved populations of wild-caught cavefish. [PDF]

iScience
North OW, Maza-Castañeda LC, Manning AE, Rastogi A, Gluesenkamp A, Gluesenkamp L, Swanson N, Hernández-Lozano J, Garduño-Sánchez MA, Díaz-Cruz JA, Kowalko JE, McGaugh SE, Ornelas-García CP, Keene AC.   +13 more
europepmc   +1 more source

How can hospitals change practice to better implement smoking cessation interventions? A systematic review

Ca-A Cancer Journal for Clinicians, 2022
Anna Ugalde, Vicki White, Nicole M Rankin   +2 more
exaly