4 papers
Pairwise Comparisons without Stochastic Transitivity: Model, Theory and Applications
Sze Ming Lee, Yunxiao Chen
Most statistical models for pairwise comparisons, including the Bradley-Terry (BT) and Thurstone models and many extensions, make a relatively strong assumption of stochastic trans…
Model-free Rank Aggregation in the Presence of Rater Heterogeneity: A Maximum Score Approach
Haoran Zhang, Yunxiao Chen
This paper investigates the rank aggregation problem through the lens of multi-way comparison data derived from rater scores. Departing from traditional parametric frameworks, such…
A Latent Variable Approach to Learning High-dimensional Multivariate longitudinal Data
Sze Ming Lee, Yunxiao Chen, Tony Sit
High-dimensional multivariate longitudinal data, which arise when many outcome variables are measured repeatedly over time, are becoming increasingly common in social, behavioral a…
Determining number of factors under stability considerations
Sze Ming Lee, Yunxiao Chen
This paper proposes a novel method for determining the number of factors in linear factor models under stability considerations. An instability measure is proposed based on the pri…