Zobrazeno 1 - 10
of 8 946
pro vyhledávání: '"Niang, A."'
Autor:
Pathmanathan, Dharini, Dabo, Issa-Mbenard, Khoo, Tzung Hsuen, Ali-Hassan, Alaa, Dabo-Niang, Sophie
In this article, we present the bivariate and multivariate functional Moran's I statistics and multivariate functional areal spatial principal component analysis (mfasPCA). These methods are the first of their kind in the field of multivariate areal
Externí odkaz:
http://arxiv.org/abs/2408.08630
This study introduces an innovative methodology for mortality forecasting, which integrates signature-based methods within the functional data framework of the Hyndman-Ullah (HU) model. This new approach, termed the Hyndman-Ullah with truncated signa
Externí odkaz:
http://arxiv.org/abs/2407.15461
In this paper, we explore dimension reduction for time series of functional data within both stationary and non-stationary frameworks. We introduce a functional framework of generalized dynamic principal component analysis (GDPCA). The concept of GDP
Externí odkaz:
http://arxiv.org/abs/2407.16024
Autor:
Niang, Ndiogou, Ertan, Unal, Gencali, Ali Arda, Toyran, Ozan, Ulubay, Ayse, Devlen, Ebru, Alpar, M. Ali, Gugercinoglu, Erbil
We have investigated whether the lack of X-ray pulsations from most neutron star (NS) low-mass X-ray binaries (LMXBs) could be due to the extension of their inner disc to the NS surface. To estimate the inner disc radii, we have employed the model, r
Externí odkaz:
http://arxiv.org/abs/2406.17921
Autor:
Dabo-Niang, Sophie, Frévent, Camille
In a world increasingly awash with data, the need to extract meaningful insights from data has never been more crucial. Functional Data Analysis (FDA) goes beyond traditional data points, treating data as dynamic, continuous functions, capturing ever
Externí odkaz:
http://arxiv.org/abs/2404.16598
Autor:
Moille, Gregory, Shandilya, Pradyoth, Niang, Alioune, Menyuk, Curtis, Carter, Gary, Srinivasan, Kartik
Publikováno v:
Nature Photonics, 2024
Kerr-induced synchronization (KIS) provides a new key tool for the control and stabilization of the repetition rate of a cavity soliton frequency comb. It enables direct external control of a given comb tooth of a dissipative Kerr soliton (DKS) thank
Externí odkaz:
http://arxiv.org/abs/2403.00109
In this paper we generalized a result of Soley Ersoy and Kemal Eren [10] about Bonnet timelike surface in Minkowski 3-space. We give a necessary and sufficient condition for a surface M in a Lorentzian 3-space to be timelike Bonnet surface. At the en
Externí odkaz:
http://arxiv.org/abs/2402.08111
Stock market indices are volatile by nature, and sudden shocks are known to affect volatility patterns. The autoregressive conditional heteroskedasticity (ARCH) and generalized ARCH (GARCH) models neglect structural breaks triggered by sudden shocks
Externí odkaz:
http://arxiv.org/abs/2310.02630
Linear regression and classification methods with repeated functional data are considered. For each statistical unit in the sample, a real-valued parameter is observed over time under different conditions related by some neighborhood structure (spati
Externí odkaz:
http://arxiv.org/abs/2308.01747
Autor:
Sokhna Aïssatou Touré, Dibor Niang, Serigne Mourtalla Gueye, Mohamed Keita, Alioune Badara Diallo, Elimane Seydi Bousso, Fatma Dieng, Blaise Felix Faye, Moussa Seck, Saliou Diop
Publikováno v:
Hematology Reports, Vol 16, Iss 3, Pp 523-528 (2024)
The Hodgkin variant Richter syndrome (HvRS) is an infrequent complication occurring in 1% of lymphocytic lymphoma/chronic lymphocytic leukemia patients. We report a case of HvRS diagnosed in Sub-Saharan Africa. A 63-year-old patient was consulted for
Externí odkaz:
https://doaj.org/article/68acc5ed4ac64e228214ba960b322c31