Preprints and under review

  • Improving Treatment Responses through Limited Nudges: A Data-Driven Learning and Optimization Approach.
    Esmaeil Keyvanshokooh, Kyra Gan, Yongyi Guo, Xueqing Liu, Anna L Trella, Susan Murphy. Under Review, 2024+. SSRN

  • Online Uniform Sampling: Randomized Learning-Augmented Approximation Algorithms with Application to Digital Health.
    Xueqing Liu, Kyra Gan, Esmaeil Keyvanshokooh, Susan Murphy. Under Review, 2024+. arXiv

Published papers

  • Screening for depressive disorders: Validation of the Patient Health Questionnaire for Adolescents (PHQ-A) in a population-based multi-ethnic Asian sample.
    Sharon C Sung, Felicia Jia Ler Ang, Xueqing Liu, Bibhas Chakraborty, John Chee Meng Wong, Daniel Shuen Sheng Fung, Say How Ong, Cheong Sing Tian, Dennis Kom, Victoria Fee, Shen Liang, Natalie Cheok Ling Lei, Jie Yu Teoh, Qai Ven Yap, RuoChen Du, Natalie Hui Jing Yap, Michelle Jing Si Wan, Muhammad Nabil Syukri Bin Sachiman, Nicholas En-Ping Sii, Leoniek M Kroneman, Jia Ying Teng, Tze Pin Ng, Frank Verhulst. Psychiatry Research, 2025. Journal

  • Thompson Sampling for Zero-Inflated Count Outcomes with an Application to the Drink Less Mobile Health Study.
    Xueqing Liu, Nina Deliu, Tanujit Chakraborty, Lauren Bell, Bibhas Chakraborty. Annals of Applied Statistics, 2025. Journal

  • Bridging Innovation and Equity: Advancing Public Health Through Just-in-Time Adaptive Interventions.
    Nur Hani Zainal, Xueqing Liu, Utek Leong, Xiaoxi Yan, Bibhas Chakraborty. Annual Review of Public Health, 2024. Journal

  • Incorporating Nonparametric Methods for Estimating Causal Excursion Effects in Mobile Health with Zero-Inflated Count Outcomes.
    Xueqing Liu, Tianchen Qian, Lauren Bell, Bibhas Chakraborty. Biometrics, 2024. Journal

  • Contextual Bandits with Budgeted Information Reveal.
    Kyra Gan, Esmaeil Keyvanshokooh, Xueqing Liu, Susan Murphy. AISTATS2024, 2024. arXiv

  • Microrandomized Trials: Developing Just-in-Time Adaptive Interventions for Better Public Health.
    Xueqing Liu, Nina Deliu, Bibhas Chakraborty. American Journal of Public Health, 2023. Journal

  • A Distribution-Free Smoothed Combination Method to Improve Discrimination Accuracy in Multi-Category Classification.
    Raju Maiti, Jialiang Li, Priyam Das, Xueqing Liu, Lei Feng, Derek J Hausenloy, Bibhas Chakraborty. Statistical Methods in Medical Research, 2022. Journal

  • A Novel Regression Method for the Analysis of Multireader Multicase-Free-Response Receiver Operating Characteristics Studies.
    Xueqing Liu, Jiarui Sun, Xiao-Hua Zhou. Statistics in Medicine, 2022. Journal