Working Papers

SANVI: A Fast Spectral-Assisted Network Variational Inference Method with an Extended Surrogate Likelihood Function
Dingbo Wu*, Fangzheng Xie
In preparation
A Bayes factor function for high dimensional MANOVA using random projections
Roger S. Zoh, Omkar M. Khandpekar, Fangzheng Xie, Lan Xue, Suvo Chatterjee, David Allison, Carmen Tekwe
Submitted

Publications

Statistical inference of random graphs with a surrogate likelihood function
Dingbo Wu*, Fangzheng Xie
Journal of Machine Learning Research, accepted conditioned on minor revision, 2025+
Higher-Order Entrywise Eigenvectors Analysis of Low-Rank Random Matrices: Bias Correction, Edgeworth Expansion, and Bootstrap
Fangzheng Xie, Yichi Zhang
Annals of Statistics, accepted for publication, 2025+
Bayesian Sparse Gaussian Mixture Model in High Dimensions
Dapeng Yao, Fangzheng Xie, Yanxun Xu
Journal of Machine Learning Research, accepted for publication, 2025+
Bias-Corrected Joint Spectral Embedding for Multilayer Networks with Invariant Subspace: Entrywise Eigenvector Perturbation and Inference
Fangzheng Xie
IEEE Transactions on Information Theory, 2024; 70 (12), 9036-9083
Spectral Norm Posterior Contraction in Bayesian Sparse Spiked Covariance Matrix Model
Fangzheng Xie
Electronic Journal of Statistics, 2024; 18 (2), 5198-5257
An Eigenvector-Assisted Estimation Framework for Signal-Plus-Noise Matrix Models
Fangzheng Xie, Dingbo Wu
Biometrika, 2024; 111 (2), 661-676
Entrywise limit theorems for eigenvectors of signal-plus-noise matrix models with weak signals
Fangzheng Xie
Bernoulli, 2024; 30 (1), 388-418
Euclidean Representation of Low-Rank Matrices and Its Geometric Properties
Fangzheng Xie
SIAM Journal on Matrix Analysis and Applications, 2023; 44 (2), 822-866
Efficient Estimation for Random Dot Product Graphs via a One-step Procedure
Fangzheng Xie, Yanxun Xu
Journal of the American Statistical Association, 2023; 118 (541), 651-664
A Theoretical Framework of the Scaled Gaussian Stochastic Process in Prediction and Calibration
Mengyang Gu, Fangzheng Xie, Long Wang
SIAM/ASA Journal of Uncertainty Quantification, 2022; 10 (4): 1435-1460
Simultaneous Learning the Dimension and Parameter of a Statistical Model with Big Data
Long Wang, Fangzheng Xie, Yanxun Xu
Statistics in Biosciences, 2023; 15; 583-607
Bayesian Sparse Spiked Covariance Model with a Continuous Matrix Shrinkage Prior
Fangzheng Xie, Joshua Cape, Carey E. Priebe, and Yanxun Xu
Bayesian Analysis, 2022; 17 (4): 1193-1217
Bayesian Projected Calibration of Computer Models
Fangzheng Xie, Yanxun Xu
Journal of the American Statistical Association, 2022; 116 (536): 1965-1982
BAREB: A Bayesian repulsive biclustering model for periodontal data
Yuliang Li, Dipankar Bandyopadhyay, Fangzheng Xie, and Yanxun Xu
Statistics in Medicine, 2020; 39 (16): 2139-2151
Optimal Bayesian Estimation for Random Dot Product Graphs
Fangzheng Xie, Yanxun Xu
Biometrika, 2020, 107 (4): 875-889
Bayesian Repulsive Gaussian Mixture Model
Fangzheng Xie, Yanxun Xu
Journal of the American Statistical Association, 2020; 115 (529): 187-203
Adaptive Bayesian Nonparametric Regression using Kernel Mixture of Polynomials with Application to Partial Linear Model
Fangzheng Xie, Yanxun Xu
Bayesian Analysis, 2020; 15 (1): 159-186
Rates of Contraction with respect to L2-distance for Bayesian Nonparametric Regression
Fangzheng Xie, Wei Jin, Yanxun Xu
Electronic Journal of Statistics, 2019; 13 (2): 3485-3512
BayCount: A Bayesian Decomposition Method for Inferring Tumor Heterogeneity using RNA-Seq Counts
Fangzheng Xie, Mingyuan Zhou, Yanxun Xu
Annals of Applied Statistics, 2018; 12 (3): 1605-1627
--- *\*: Student first author*

Last updated: 08/2025