28 citations · 39 across the 10 of their papers we have counts for
11 papers
Spatial analysis and prediction of COVID-19 spread in South Africa after lockdown
Mohammad Arashi, Andriette Bekker, Mahdi Salehi +4
What is the impact of COVID-19 on South Africa? This paper envisages assisting researchers and decision-makers in battling the COVID-19 pandemic focusing on South Africa. This pape…
Mastering the body and tail shape of a distribution
Matthias Wagener, Mohammad Arashi
The normal distribution and its perturbation has left an immense mark on the statistical literature. Hence, several generalized forms were developed to model different skewness, ku…
High-dimensional generalized semiparametric model for longitudinal data
M. Taavoni, M. Arashi
This paper considers the problem of estimation in the generalized semiparametric model for longitudinal data when the number of parameters diverges with the sample size. A penaliza…
Improving efficiency in fuzzy regression modeling by Stein-type shrinkage
M. Kashani, M. Arashi, M. R. Rabiei
The fuzzy linear regression (FLR) modeling was first proposed making use of linear programming and then followed by many improvements in a variety of ways. In almost all approaches…
LLASSO: A linear unified LASSO for multicollinear situations
M. Arashi, Y. Asar, B. Yuzbasi
We propose a rescaled LASSO, by premultipying the LASSO with a matrix term, namely linear unified LASSO (LLASSO) for multicollinear situations. Our numerical study has shown that t…
Some theoretical results on tensor elliptical distribution
M. Arashi
The multilinear normal distribution is a widely used tool in tensor analysis of magnetic resonance imaging (MRI). Diffusion tensor MRI provides a statistical estimate of a symmetri…