Skip to main content


My primary research interests include

  • Change-point problems, anomaly detection
  • Non-parametrics
  • Graph-based methods
  • Non-euclidean and complex data types 

Working papers/pre-prints: 

  • Chu, L. and Chen, H.  (2019+). Sequential change-point detection for high-dimensional and non-Euclidean data. arXiv:1810.05973 (R package: gStream)
  • Chu, L. and Chen, H.  (2019+). On the tightness of graph-based scan statistics. In preparation.
  • Chu, L. and Chen, H.  (2019+). Cross-sample analysis of allele-specific copy number for common patterns. In preparation.


  • Chu, L. and Chen, H. (2019). Asymptotic distribution-free change-point detection for multivariate and non-Euclidean data. The Annals of Statistics, 47(1), 382-414.. (R package: gSeg)
  • Guerrero, A. D., Chu, L., Franke, T., and Kuo, A. (2016). Father involvement in feeding interactions with their young children. American journal of health behavior, 40(2), 221-230.
  • Nguyen, H. Q., Chu, L., Liu, I. L., Lee, J. S., Suh, D., Korotzer, B., and Gould, M. K. (2014). Associations between physical activity and 30-day readmission risk in chronic obstructive pulmonary disease. Annals of the American Thoracic Society, 11(5), 695-705.
  • Guerrero, A. D., Fuller, B., Chu, L., Kim, A., Franke, T., Bridges, M., and Kuo, A. (2013). Early growth of Mexican-American children: Lagging in preliteracy skills but not social development. Maternal and child health journal, 17(9), 1701-1711.