Mohamed Sewalim El-sayed Hamed
Lecturer
Consistency Issues in Skew Random Fields: Investigating Proposed Alternatives and Identifying Persisting Problems
Pakistan Journal of Statistics and Operation Research (PJSOR) • 2025
Publication Information
Authors
Taghipour, M., Saber, M. M., Khan, M. I., Hamed, M. S. & Yousof, H. M.
Keywords
Random field, Multivariate closed skew-normal distribution, Multivariate unified skew-normal distribution, spatial prediction.
Journal
Pakistan Journal of Statistics and Operation Research (PJSOR)
Publisher
Pakistan Journal of Statistics and Operation Research (PJSOR)
Volume
21
Issue
1
Pages
33-37
publication.type
International
Paper Link
Open Link
Supplementary Materials
Not Available
Abstract
Multiple researchers have proposed skew random fields derived from multivariate skew distributions, yet the consistency of these fields has been questioned. Mahmoudian (2018) and Saber et al. (2018) have proposed alternative suggestions to address these concerns. In our study, we identify that the random fields outlined by Mahmoudian (2018) continue to demonstrate consistency issues, suggesting a flaw in their definition. Finally, we propose a skew random field and apply it to spatial prediction.
