• October 2008, Winemiller Conference on Survival Analysis and Its Applications, Columbia, MO, "Semiparametric Analysis of Mixture Regression Models with Competing Risks Data" (contributed)

  • September 2008, University of Georgia, Statistics Department, “Estimation and Inference for Partial Linear Transformation Models” (invited)

  • September 2008, Duke University, Department of Biostatistics and Bioinformatics, DCRI, “Variable Selection for Semiparametric Survival Models – Estimation & Inference” (invited)

  • August 2008, NCSU, Statistics Department, “Estimation and Inference for Partial Linear Transformation Models” (faculty sampler)

  • June 2008, ICSA Applied Statistics Symposium, Piscataway, NJ, “On Estimation Of Linear Transformation Models With Nested Case-Control Sampling” (invited)

  • April 2008, Emory University, Department of Biostatistics, "Semiparametric Marginalized Model for Longitudinal Data with Nonignorable Dropout" (invited) 

  • March 2008, Division of Epidemiology, Statistics, Prevention Research, National Institute of Children and Health Development, NIH, "A Unified Variable Selection Method for Censored Survival Data" (invited)

  • February 2008, University of Virginia, Statistics Department, "Estimation and Inference for Partial Linear Transformation Models with Censored Survival Data" (invited)

  • December 2007, Iowa State University, Statistics Department, "Estimation and Inference for Partial Linear Transformation Models with Censored Survival Data" (invited)

  • November 2007, NYU Medical School, Department of Environmental Medicine, "Transformation Models for Case-Cohort and Nested Case-Control Studies" (invited)

  • October 2007, Nonparametric Conferences, Columbia, SC, "Partial Linear Transformation Models For Survival Data" (invited) 

  • August 2007, JSM Meeting, Salt Lake City, UT, "Variable Selection for Censored Survival Data" (topic contributed)

  • June 2007, ICSA Applied Statistics Symposium, Raleigh, NC, "Partial Linear Transformation Models For Survival Data" (invited)

  • March 2007, ENAR Meeting, Atlanta, GA, "Semiparametric Analysis of Mixture Regression Models with Competing Risks Data" (contributed)

  • August 2006, JSM Meeting, Seattle, WA, "Adaptive-Lasso for Cox's Proportional Hazards Model" (topic contributed)  

  • Fall 2005, NCSU, Statistics Department, "Mapping Quantitative Trait Loci with Time-to-Event Data from a Population of Mixed Susceptibility" (faculty sampler)

  • Fall 2005, NCSU, Bioinformatics Research Center, "Interval Mapping of Quantitative Trait Loci for Time-to-Event Trait with the Mixture Cure Model" (invited)

  • August 2005, JSM Meeting, Minneapolis, MN, "Marginal Regression of Multivariate Event Based on Linear Transformation Models" (contributed)

  • March 2005, ENAR Meeting, Austin, TX, "Semiparametric transformation models for the case-cohort study" (contributed)

  • Fall 2004, NCSU, Statistics Department, "Semiparametric transformation models for the case-cohort study" (faculty sampler)

  • August 2004, JSM Meeting, Toronto, Canada, "Semiparametric Transformation Cure Models" (contributed)

  • March 2004, ENAR Meeting, Pittsburgh, PA, "On Semiparametric Transformation Cure Models" (contributed)

  • February 2004, UNC-Chapel Hill, Biostatistics Department, "On Semiparametric Transformation Cure Models" (invited)

  • August 2002, JSM Meeting, New York, NY, "Efficiency Comparison between Mean and Log-Rank Tests with Recurrent Event Times" (contributed)

  • March 2002, ENAR Meeting, Arlington, VA, "Efficiency Comparison between Mean and Log-Rank Tests with Recurrent Event Times" (contributed)