Xiaohui Chen

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Research Output

  • 17 Article
  • 4 Conference contribution
  • 1 Conference article
  • 1 Working paper
2020

Jackknife multiplier bootstrap: finite sample approximations to the U-process supremum with applications

Chen, X. & Kato, K., Apr 1 2020, In : Probability Theory and Related Fields. 176, 3-4, p. 1097-1163 67 p.

Research output: Contribution to journalArticle

Scenario analysis of non-pharmaceutical interventions on global COVID-19 transmissions

Chen, X. & Qiu, Z., 2020, (In preparation) 22 p. (arXiv).

Research output: Working paper

2019

Approximating high-dimensional infinite-order U-statistics: Statistical and computational guarantees

Song, Y., Chen, X. & Kato, K., Jan 1 2019, In : Electronic Journal of Statistics. 13, 2, p. 4794-4848 55 p.

Research output: Contribution to journalArticle

Open Access

Estimation of Dynamic Networks for High-Dimensional Nonstationary Time Series

Xu, M., Chen, X. & Wu, W. B., Dec 31 2019, In : Entropy. 22, 1, 55.

Research output: Contribution to journalArticle

Open Access

Randomized incomplete u-statistics in high dimensions

Chen, X. & Kato, K., Jan 1 2019, In : Annals of Statistics. 47, 6, p. 3127-3156 30 p.

Research output: Contribution to journalArticle

2018

Gaussian and bootstrap approximations for high-dimensional U-statistics and their applications1

Chen, X., Apr 2018, In : Annals of Statistics. 46, 2, p. 642-678 37 p.

Research output: Contribution to journalArticle

Inference of high-dimensional linear models with time-varying coefficients

Chen, X. & He, Y., Jan 2018, In : Statistica Sinica. 28, 1, p. 255-276 22 p.

Research output: Contribution to journalArticle

2017

Sparse transition matrix estimation for high-dimensional and locally stationary vector autoregressive models

Ding, X., Qiu, Z. & Chen, X., Jan 1 2017, In : Electronic Journal of Statistics. 11, 2, p. 3871-3902 32 p.

Research output: Contribution to journalArticle

2016

Regularized Estimation of Linear Functionals of Precision Matrices for High-Dimensional Time Series

Chen, X., Xu, M. & Wu, W. B., Dec 15 2016, In : IEEE Transactions on Signal Processing. 64, 24, p. 6459-6470 12 p.

Research output: Contribution to journalArticle

2015

Discussion of “High-dimensional autocovariance matrices and optimal linear prediction”

Chen, X., Jan 1 2015, In : Electronic Journal of Statistics. 9, p. 801-810 10 p.

Research output: Contribution to journalArticle

2014

A genetically informed, group fMRI connectivity modeling approach: Application to schizophrenia

Liu, A., Chen, X., Wang, Z. J., Xu, Q., Appel-Cresswell, S. & McKeown, M. J., Mar 1 2014, In : IEEE Transactions on Biomedical Engineering. 61, 3, p. 946-956 11 p., 6678714.

Research output: Contribution to journalArticle

A note on moment inequality for quadratic forms

Chen, X., Sep 2014, In : Statistics and Probability Letters. 92, p. 83-88 6 p.

Research output: Contribution to journalArticle

2013

Covariance and precision matrix estimation for high-dimensional time series

Chen, X., Xu, M. & Wu, W. B., Dec 1 2013, In : Annals of Statistics. 41, 6, p. 2994-3021 28 p.

Research output: Contribution to journalArticle

2012

A two-graph guided multi-task lasso approach for eQTL mapping

Chen, X., Shi, X., Xu, X., Wang, Z., Mills, R., Lee, C. & Xu, J., Jan 1 2012, In : Journal of Machine Learning Research. 22, p. 208-217 10 p.

Research output: Contribution to journalConference article

Efficient minimax estimation of a class of high-dimensional sparse precision matrices

Chen, X., Kim, Y. H. & Wang Jane, Z., Jun 1 2012, In : IEEE Transactions on Signal Processing. 60, 6, p. 2899-2912 14 p., 6159094.

Research output: Contribution to journalArticle

Large covariance matrix estimation: Bridging shrinkage and tapering approaches

Chen, X., Wang, Z. J. & McKeown, M. J., Oct 23 2012, 2012 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2012 - Proceedings. p. 2013-2016 4 p. 6288303. (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Shrinkage-to-tapering estimation of large covariance matrices

Chen, X., Wang, Z. J. & McKeown, M. J., Oct 22 2012, In : IEEE Transactions on Signal Processing. 60, 11, p. 5640-5656 17 p., 6252067.

Research output: Contribution to journalArticle

2011

A Bayesian Lasso via reversible-jump MCMC

Chen, X., Jane Wang, Z. & McKeown, M. J., Aug 1 2011, In : Signal Processing. 91, 8, p. 1920-1932 13 p.

Research output: Contribution to journalArticle

2010

Asymptotic analysis of robust LASSOs in the presence of noise with large variance

Chen, X., Wang, Z. J. & McKeown, M. J., Oct 1 2010, In : IEEE Transactions on Information Theory. 56, 10, p. 5131-5149 19 p., 5571842.

Research output: Contribution to journalArticle

Asymptotic analysis of the Huberized LASSO estimator

Chen, X., Wang, Z. J. & McKeown, M. J., Nov 8 2010, 2010 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2010 - Proceedings. p. 1898-1901 4 p. 5495338. (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

FMRI group studies of brain connectivity via a group robust LASSO

Chen, X., Wang, Z. J. & Mckeown, M. J., Dec 1 2010, 2010 IEEE International Conference on Image Processing, ICIP 2010 - Proceedings. p. 589-592 4 p. 5652779. (Proceedings - International Conference on Image Processing, ICIP).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2009

An MM-based optimization algorithm for sparse linear modeling on microarray data analysis

Chen, X. & Gottardo, R., Dec 31 2009, 3rd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2009. 5162334. (3rd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2009).

Research output: Chapter in Book/Report/Conference proceedingConference contribution