2 papers
math.OC2025
An Inventory System with Two Supply Modes and Lévy Demand
José Luis Pérez, Kazutoshi Yamazaki, Qingyuan Zhang
This study considers a continuous-review inventory model for a single item with two replenishment modes. Replenishments may occur continuously at any time with a higher unit cost,…
stat.ME2024
Consistent information criteria for regularized regression and loss-based learning problems
Qingyuan Zhang, Hien Duy Nguyen
Many problems in statistics and machine learning can be formulated as model selection problems, where the goal is to choose an optimal parsimonious model among a set of candidate m…