LSUHSC Logo

Home

Research

Teaching

Consulting

CV

Links

SPH

Research

Areas of interest

  • Bayesian Modeling
  • Statistical Computation
  • Machine Learning
  • Spatial Analysis
  • Survey Data Analysis
  • Genetic Statistics

Book

  • Yu, Q. and Li, B., 2022. Statistical Methods for Mediation, Confounding and Moderation Analysis Using R and SAS. Chapman and Hall/CRC. ISBN 9780367365479. Link

Selected Interactive Web App

  • Multi-level mediation analysis (MLMA) on Shiny: Link
    Example: Try the dataset sampledata_v2_STATA with the following set up.
                      Predictor: pm25_satnowood_2
                      Response: gest_weeks
                      Mediators: anyht; smoke_status_flag
                      Level of X: Season
  • Multivariate mediation analysis (MMA) on Shiny: Link
    Example: Try the dataset wt with the following set up.
                      Predictor: sex
                      Potential mediators: tvhours, cmpthours, cellhours, exercises, sweat, ...
                      Response: overweigh
                      Choose the mediator for plotting: cellhours

Seleccted Publications and Manuscripts

  • Yu, Q. and Li, B., 2020. Third-Variable Effect Analysis with Multilevel AdditiveModels. PLoS ONE 15(10): e0241072. https://doi.org/10.1371/journal.pone.0241072. Link.
  • Fisher, P., Cao, W. and Yu, Q.*, 2020. Using SAS Macros for Multiple Mediation Analysis in R. Journal of Open Research Software, 8: 22. DOI: https://doi.org/10.5334/jors.277.Link
  • Yu, Q. and Li, B., 2020. A Multivariate Multiple Third-Variable Effect Analysis with an Application to Explore Racial and Ethnic Disparities in Obesity. Journal of Applied Statistics. DOI: 10.1080/02664763.2020.1738359.Link
  • Yu, Q., and Li, B., 2020. Model-Guided Adaptive Sampling for Bayesian Model Selection. Journal of the Korean Statistical Society, DOI: 10.1007/s42952-020-00050-z.Link
  • Li, B., Yu, Q. and Peng, L., 2019. Ensemble of Fast Learning Stochastic Gradient Boosting. Communications in Statistics - Simulation and Computation. DOI: 10.1080/03610918.2019.1645170.Link
  • Zhu, L., Yu, Q.* and Mercante, D., 2019. A Bayesian Sequential Design for Clinical Trials with Time-to-Event Outcomes. Statistics in Biopharmaceutical Research, 11(4): 387-397. doi: 10.1080/19466315.2019.1629996.Link
  • Yu, Q., Wu, X., Li, B., and Scribner, R., 2019. Multiple Mediation Analysis with Survival Outcomes – With an Application to Explore Racial Disparity in Breast Cancer Survival, Statistics in Medicine, 38: 398–412. doi:10.1002/sim.7977. Link
  • Yu, Q., Medeiros, KL, Wu, X., and Jensen, RE, 2018, Nonlinear Predictive Models for Multiple Mediation Analysis: With an Application to Explore Ethnic Disparities in Anxiety and Depression Among Cancer Survivors. Psychometrika. DOI: https://doi.org/10.1007/s11336-018-9612-2. Link.
  • Yu, Q., Zhu, L., and Zhu, H., 2017, A Bayesian sequential design with adaptive randomization for two-sided hypothesis tests. Pharmaceutical Statistics. DOI: 10.1002/pst.1830. pdf.
  • Li, B. and Yu, Q., 2017, A Nonparametric Test of Independence Between Two Variables. Statistical Analysis and Data Mining. Paper.
  • Yu, Q. and Li, B., 2017, mma: An R Package for Mediation Analysis with Multiple Mediators. Journal of Open Research Software, 5 (1), 11. Link. DOI: http://doi.org/10.5334/jors.160. The R package, mma.
  • Yu, Q., Scribner, R.A., Leonardi, C., Zhang, L., Park, C., Chen, L., and Simonsen, N.R., 2017, Exploring racial disparity in obesity: a mediation analysis considering geo-coded environmental factors. Spatial and Spatio-temporal Epidemiology, 21, 13-23. Link. DOI: 10.1016/j.sste.2017.02.001.
  • Zhu, H., Yu, Q., and Mercante, D., 2017, A Bayesian Sequential Design with Binary Outcome. Pharmaceutical Statistics, 16(3), 192-200. Link.
  • Zhu, H., and Yu, Q., 2015, A Bayesian Sequential Design Using Alpha Spending Function to Control Type I Error. Statistical Methods in Medical Research. Prepublished July 18, 2015, DOI:10.1177/0962280215595058.
  • Yu, Q., Li, B. 2014, Regularization and Estimation in Regression with Cluster Variables. Open Journal of Statistics, 4(10), 814-825. Link.
  • Yu, Q., Fan, Y., and Wu, X. 2014, General Multiple Mediation Analysis With an Application to Explore Racial Disparity in Breast Cancer Survival. Journal of Biometrics & Biostatistics, 5(2):189. Link.Supplemental Material.The R package, mma.
  • Yu, Q., MacEachern, S.N., and Peruggia, M., 2013, Clustered Bayesian Model Averaging. Bayesian Analysis, 8(4), 883-908. Link.
  • Yu, Q., Li, B., Fang, Z. and Peng, L. 2012, Model Guided Adaptive Design and Analysis in Computer Experiment. Statistical Analysis and Data Mining, 5(5), 399-409.Link.
  • Xu, Y., Yu, Q.*, Scribner, R., Theall, K., Scribner, S., and Simonsen, N., 2012, Multilevel Spatiotemporal Change-point Models for Evaluating the Effect of an Alcohol Outlet Control Policy on Changes in Neighborhood Assaultive Violence Rates, Spatial and Spatio-temporal Epidemiology, 3(2), 121-128.
  • Yu, Q., Wu, X.C., Andrews, P., Mercante, D., Ranganath, P., Ajani, U., Qiao, B., and Wohler, B. 2011, Statistical Methods to Check Agreement between Two Coding Systems in the Absence of Double-Coded Data. JP Journal of Biostatistics, 6(1),1-18.
  • Yu, Q., MacEachern, S. N. and Peruggia, M. 2010, Bayesian Synthesis: Combining Subjective Analyses, with an Application to Ozone Data, The Annals of Applied Statistics, 5(2B), 1678-1698. pdf.
  • Yu, Q., 2011, Weighted Bagging - A Modification of AdaBoost from the Perspective of Importance Sampling. Journal of Applied Statistics, 38(3) 451-463.
  • Li, B., Sanderlin R, Melanson R and Yu, Q., 2011, Spatio-Temporal Analysis of A Plant Disease in A Non-uniform Crop: A Monte Carlo Approach. Journal of Applied Statistics 38(1), 175-182.
  • Yu, Q., Li, B., Fang, Z. and Peng, L. 2010, An Adaptive Sampling Scheme Guided by BART - with an Application to Predict Processor Performance. The Canadian Journal of Statistics, 38(1), 136-152. pdf.
  • Theall, K., Scribner, R., Broyles, S., Yu, Q., Chotalia, J., Simonsen, N., Schonlau, M., and Carlin, B.P., 2010, Impact of small group size on neighbourhood influences in multilevel models. J Epidemiol Community Health.
  • Scribner, R., Theall, K., Simonsen, N., Cohen, D., Mason, K. and Yu, Q., 2009, Misspecification of the Effect of Race in Fixed Effects Models of Health Inequalities. Social Science & Medicine, 69(11), 1584-1591.
  • Li, B. and Yu, Q., 2009, Robust and Sparse Bridge Regression. Statistics and Its Interface,2, 481-491. pdf.
  • Yu, Q., Li, B. and Scribner, R. 2009, Hierarchical Additive Modeling of Nonlinear Association with Spatial Correlations - An Application to related alcohol outlet destruction and changes in neighborhood rates of assaultive violence. Statistics in Medicine, 28(14), 1896-1912. pdf.
  • Li, B., Yu, Q., 2008, Feature Extraction for Classification of Functional Data, Computational Statistics & Data Analysis, 52(10), 4790-4800. pdf.
  • Yu, Q., Scribner, R., Carlin, B., Theall, K., Simonsen, N., Ghosh-Dastidar, B., Cohen, D., Mason, K. 2008, Multilevel Spatiotemporal Dual Changepoint Models for Relating Alcohol Outlet Destruction and Changes in Neighborhood Rates of Assaultive Violence, Geospatial Health, 2(2), 161-172. pdf.
  • Yu, Q., Stasny, E. A. and Li, B. 2008, Bayesian Models to Adjust for Response Bias in Survey Data: An Example in Estimating Rape and Domestic Violence Rates from the NCVS, The Annals of Applied Statistics, 2(2), 665-686. pdf, data and R code.

Selected Talks and Presentations

  • AdaBoost from the Perspective of Importance Sampling, 2009 JSM, Washington D.C.. August 2009.
  • Hierarchical Additive Modeling of Nonlinear Association with Spatial Correlations - An Application to related alcohol outlet destruction and changes in neighborhood rates of assaultive violence, pdf. 2009 ENAR, San Antonio, March 2009.
  • Multilevel Spatiotemporal Dual Changepoint Models for Relating Alcohol Outlet Destruction and Changes in Neighborhood Rates of Assaultive Violence. 2008 Bayesian Biostatistics Conference, MD Anderson Cancer Center, Feb. 2008.
  • Bayesian Synthesis. 2008 Winter Bayesian Workshop, University of Florida, Jan. 2008.
  • Feature Extraction for Classification of Functional Data. The Joint Statistical Meetings, Salt Lake City, Aug. 2007.
  • Bayesian Synthesis. Tenth Meeting of New Researchers in Statistics and Probability, Salt Lake City, Jul. 2007.
  • Development of a Bayesian Spatio-Temporal Model to Assess Trends in Assaultive Violence at the Census Tract Level. 30th Annual Scientific Meeting of the Research Society on Alcoholism, Chicago, Jul. 2007.
  • Feature Extraction for Functional Data in Classification. Fourth Annual MidSouth Conference on Computational Biology and Bioinformatics, New Orleans, Feb. 2007.
  • What People Do As Biostatisticians. Lousiana State University Mathematics Club, Baton Rouge, NOV. 2006.
  • Bayesian Models to Adjust for Response Bias in Survey Data: An Example in Estimating Rape and Domestic Violence from the NCVS. Louisiana State University Health Science Center Biostatistics Seminar, New Orleans, Oct. 2006.
  • Bayesian Synthesis. The Joint Statistical Meetings, Seattle, Aug. 2006.
  • Data-Splitting Models for O3 Data. Poster Presentation on the eighth workshop for Case Studies in Bayesian Statistics held in Carnegie Mellon University in 2005.pdf.
  • Bayesian Models to Adjust for Response Bias in Survey Data: An Example in Estimating Rape and Domestic Violence from the NCVS. Presented at the Joint Statistical Meetings held at Minneapolis in 2005.pdf.
  • A Project on the Value of American Marketing Association. Presented at the Seminars in Quantitative Studies in Consumer Behavior in Spring 2005.pdf.
  • A Bayesian Case Study on Kentucky Derby Data. Presented at the Seminars in Quantitative Studies in Consumer Behavior in Autumn 2004.pdf.

Awards

  • Travel Award to attend the 2011 McMski III, 2011.
  • Travel Award sponsored by ENAR to attend the 2008 ENAR Workshop for Junior Researchers, 2008.
  • Travel Award sponsored by NSF to attend the 2008 Winter Bayesian Workshop and give a presentation at University of Florida , 2008.
  • Travel Award sponsored by NISS/ASA to attend the 10th Meeting of New Researchers in Statitics and Probabilities and give a presentation, 2007.
  • Winner of the 2006 Student Paper Competition, sponsored by the ASA Section on Bayesian Statistical Science.
  • Winner of the 2005 Student Paper Competition, jointly sponsored by the ASA Social Statistics, Government Statistics, and Survey Research Methods Sections. The organizers of the competition paid the registration fees, travel and lodging expenses to present the winning paper at the Joint Statistical Meetings 2005 held at Minneapolis.
  • Graduate Summer Research Award sponsored by the Center of Survey Research of The Ohio State University in 2004. The sponsor provided funding for three-month research.
  • Travel Award supported by the ASA Survey Research Methods Section to attend the 2004 Joint Statistical Meetings held at Toronto, Canada.
  • University Fellowship, The Ohio State University for the year 2002.
Home | Research | Teaching | Consulting | CV | Links | SPH