2 papers
math.ST2026
A new matrix-variate integer-valued autoregressive process with matrical negative binomial thinning
Chunhan Liu, Nuo Xu, Kai Yang
To address the overdispersion problem in matrix-variate integer-valued time series data arising in sociology, medicine, and related fields, this paper proposes a matrix integer-val…
math.ST2025
Matrix-variate integer-valued autoregressive processes
Nuo Xu, Kai Yang, Fukang Zhu
In the fields of sociology and economics, the modeling of matrix-variate integervalued time series is urgent. However, no prior studies have addressed the modeling of such data. To…