3 papers
stat.ME2024
False Discovery Rate Control via Data Splitting for Testing-after-Clustering
Lijun Wang, Yingxin Lin, Hongyu Zhao
Testing for differences in features between clusters in various applications often leads to inflated false positives when practitioners use the same dataset to identify clusters an…
stat.ME2024
Decomposition with Monotone B-splines: Fitting and Testing
Lijun Wang, Xiaodan Fan, Hongyu Zhao +1
A univariate continuous function can always be decomposed as the sum of a non-increasing function and a non-decreasing one. Based on this property, we propose a non-parametric regr…
stat.ME2023
Degrees of Freedom: Search Cost and Self-consistency
Lijun Wang, Hongyu Zhao, Xiaodan Fan
Model degrees of freedom ($\df$) is a fundamental concept in statistics because it quantifies the flexibility of a fitting procedure and is indispensable in model selection. To inv…