Publications and Preprints

The sign ^* indicates supervised students; the sign ⁺ indicates equal contribution.

• Transfer Learning for Robust Structured Regression with Bi-level Source Detection.
  H. Shi^*, Y. Feng, and X. Liu. (2025)
  Manuscript available upon request.

• Transfer Learning for Survival-based Clustering of Predictors with an Application to TP53 Mutation Annotation
  X. Liu, H. Yan, H. Shi, E. Montellier, E. C. Chi, P. Hainaut, and W. Wang. (2025)
  Submitted. [bioRxiv] [code]

• Anderson Accelerated Operator Splitting Methods for Convex-nonconvex Regularized Problems
  Q. Heng⁺, X. Liu⁺, and E. C. Chi. (2025)
  Accepted at IEEE Open Journal of Signal Processing. [link] [code]

• Subclonal Mutation Load Predicts Survival and Response to Immunotherapy in Cancers with Low to Moderate Tumor Mutation Burden
  Y. Jiang, M. D. Montierth, K. Yu, S. Ji, S. Guo, Q. Tran, X. Liu, et al., W. Wang. (2024+)
  Submitted. [bioRxiv] [code]

• A Deconvolution Framework that Uses Single-Cell Sequencing Plus a Small Benchmark Dataset for Improved Analysis of Cell-Type Ratios in Complex Tissue Samples
  S. Guo⁺, X. Liu⁺, X. Cheng⁺, et al., W. Wang. (2025)
  Genome Research, 35(1), 147-161. [link] [code] [tutorial]

• A Majorization-Minimization Gauss-Newton Method for 1-Bit Matrix Completion
  X. Liu, X. Han, E. C. Chi, and B. Nadler. (2025)
  Journal of Computational and Graphical Statistics (JCGS), 1-13. [link] [code]

• A Convex-Nonconvex Strategy for Grouped Variable Selection
  X. Liu, A. J. Molstad, and E. C. Chi. (2023)
  Electronic Journal of Statistics, 17(2), 2912-2961. [BibTex] [link] [code]

• A Sharper Computational Tool for L2E Regression
  X. Liu, E. C. Chi, and K. L. Lange. (2023)
  Technometrics, 65(1), 117-126. [BibTex] [link] [code]

• Revisiting Convexity-Preserving Signal Recovery with the Linearly Involved GMC Penalty
  X. Liu, and E. C. Chi. (2022)
  Pattern Recognition Letters, 156, 60-66. [BibTex] [link]

• An Interpretable Machine Learning Model to Classify Coronary Bifurcation Lesions
  X. Liu, M. Vardhan, Q. Wen, A. Das, A. Randles, and E. C. Chi. (2021)
  In 2021 43rd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC), pp. 4432-4435. IEEE. [BibTex] [link]