3 papers
stat.ME2025
A Goodness-of-Fit Test for Sparse Networks
Yujia Wu, Wei Lan, Long Feng +1
The stochastic block model (SBM) has been widely used to analyze network data. Various goodness-of-fit tests have been proposed to assess the adequacy of model structures. To the b…
math.ST2025
Fixed and Random Covariance Regression Analyses
Tao Zou, Wei Lan, Runze Li +1
Covariance regression analysis is an approach to linking the covariance of responses to a set of explanatory variables , where can be a vector, matrix, or tensor. Most of th…
stat.ME2024
An Eigengap Ratio Test for Determining the Number of Communities in Network Data
Yujia Wu, Jingfei Zhang, Wei Lan +1
To characterize the community structure in network data, researchers have introduced various block-type models, including the stochastic block model, degree-corrected stochastic bl…