2 papers
stat.ME2026
A Dynamic Factor Model for Multivariate Counting Process Data
Fangyi Chen, Hok Kan Ling, Zhiliang Ying
We propose a dynamic multiplicative factor model for process data, which arise from complex problem-solving items, an emerging testing mode in large-scale educational assessment. T…
stat.CO2024
Nonparametric Estimation for a Log-concave Distribution Function with Interval-censored Data
Chi Wing Chu, Hok Kan Ling, Chaoyu Yuan
We consider the nonparametric maximum likelihood estimation for the underlying event time based on mixed-case interval-censored data, under a log-concavity assumption on its distri…