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math.ST2026
Additive Matrix Integer-Valued Autoregressive Model
Kaiyan Cui, Yikai Hu, Tianyun Guo
Contemporary data-driven and technology-integrated era, various matrix-valued integer-valued time series, such as cross-regional crime statistics, multi-category sales records, and…
math.ST2025
Reduce-Rank Matrix Integer-Valued Autoregressive Model
Kaiyan Cui, Tianyun Guo, Suping Wang
Integer-valued time series are widely present in many fields, such as finance, economics, disease transmission, and traffic flow. With data dimensions surging, the traditional mult…