Zobrazeno 1 - 10
of 121
pro vyhledávání: '"Salim Bouzebda"'
Publikováno v:
AIMS Mathematics, Vol 9, Iss 9, Pp 26195-26282 (2024)
$ U $-statistics represent a fundamental class of statistics used to model quantities derived from responses of multiple subjects. These statistics extend the concept of the empirical mean of a $ d $-variate random variable $ X $ by considering sums
Externí odkaz:
https://doaj.org/article/4134ff8d6c8246d0804d0f4c01779bd2
Autor:
Oussama Bouanani, Salim Bouzebda
Publikováno v:
AIMS Mathematics, Vol 9, Iss 9, Pp 23651-23691 (2024)
Local polynomial fitting exhibits numerous compelling statistical properties, particularly within the intricate realm of multivariate analysis. However, as functional data analysis gains prominence as a dynamic and pertinent field in data science, th
Externí odkaz:
https://doaj.org/article/d81442cd5b4f4829aa7569f4c9a033c7
Autor:
Salim Bouzebda
Publikováno v:
AIMS Mathematics, Vol 9, Iss 6, Pp 14807-14898 (2024)
In recent years, there has been a notable shift in focus towards the analysis of non-stationary time series, driven largely by the complexities associated with delineating significant asymptotic behaviors inherent to such processes. The genesis of th
Externí odkaz:
https://doaj.org/article/762995c2fd91408c893a608e729a90aa
Publikováno v:
AIMS Mathematics, Vol 9, Iss 3, Pp 7340-7371 (2024)
In the present study, we address the nonparametric estimation challenge related to the regression function within the Single Functional Index Model in the random censoring framework. The principal achievement of this investigation lies in the establi
Externí odkaz:
https://doaj.org/article/4fe3905be46e4051a361198b4c051b0c
Autor:
Zouaoui Chikr Elmezouar, Fatimah Alshahrani, Ibrahim M. Almanjahie, Salim Bouzebda, Zoulikha Kaid, Ali Laksaci
Publikováno v:
AIMS Mathematics, Vol 9, Iss 3, Pp 5550-5581 (2024)
Analyzing the real impact of spatial dependency in financial time series data is crucial to financial risk management. It has been a challenging issue in the last decade. This is because most financial transactions are performed via the internet and
Externí odkaz:
https://doaj.org/article/ccf30683cd48413ea84ffbb8ea3eb34d
Autor:
Salim Bouzebda, Amel Nezzal
Publikováno v:
AIMS Mathematics, Vol 9, Iss 2, Pp 4427-4550 (2024)
$ U $-statistics represent a fundamental class of statistics arising from modeling quantities of interest defined by multi-subject responses. $ U $-statistics generalize the empirical mean of a random variable $ X $ to sums over every $ m $-tuple of
Externí odkaz:
https://doaj.org/article/bc4ec91fc9da4834b376942904935b72
Autor:
Salim Bouzebda
Publikováno v:
Mathematics, Vol 12, Iss 13, p 1996 (2024)
In his work published in (Ann. Probab. 19, No. 2 (1991), 812–825), W. Stute introduced the notion of conditional U-statistics, expanding upon the Nadaraya–Watson estimates used for regression functions. Stute illustrated the pointwise consistency
Externí odkaz:
https://doaj.org/article/c751247c69634939a1fe6d0f896ca9cb
Autor:
Salim Bouzebda
Publikováno v:
Stats, Vol 6, Iss 1, Pp 365-380 (2023)
The purpose of this note is to provide a description of the weak convergence of the random resample size bootstrap empirical process. The principal results are used to estimate the sample rank correlation coefficients using Spearman’s and Kendall
Externí odkaz:
https://doaj.org/article/af9d2b727c19435fac62e1271c4b728b
Publikováno v:
Mathematics, Vol 12, Iss 3, p 448 (2024)
This work examines the asymptotic characteristics of a conditional set-indexed empirical process composed of functional ergodic random variables with missing at random (MAR). This paper’s findings enlarge the previous advancements in functional dat
Externí odkaz:
https://doaj.org/article/5874ba4d59424900a32bb79b3af31a01
Publikováno v:
Symmetry, Vol 15, Iss 12, p 2108 (2023)
The problem of estimating the spatio-functional expectile regression for a given spatial mixing structure Xi,Yi∈F×R, when i∈ZN,N≥1 and F is a metric space, is investigated. We have proposed the M-estimation procedure to construct the Spatial L
Externí odkaz:
https://doaj.org/article/9f07d6dbf5204df2a66e864417045bfb