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I am a Professor in the Department of Statistics at Virginia Tech. I have joined Virginia Tech since fall 2007. I received my PhD under the direction of Raymond J. Carroll in the Department of Statistics at Texas A&M University. I was trained as a Postdoctoral Research Fellow under the direction of  Hongyu Zhao in the Department of Biostatistics at Yale University. I received my MS in the Department of Applied Statistics at Yonsei University, Republic of Korea.  I have developed semiparametric and nonparametric functional methods for highly correlated and high-dimensional data. I am interested in developing both frequentist and Bayesian methods motivated by real problems that need to be addressed with suitable statistical methodology.