Assistant Professor
Department of Mathematics & Statistics
Georgia State University
Office: 25 Park Place, Room 1319
Phone: (404) 413-6453
Email: xqi3@gsu.edu
Research
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Research Interest:
- Functional data analysis: linear and nonlinear functional regression models; highly densely observed spiky functional data; functional data in two-dimensional space; functional wavelet regression; dimension reduction for functional data; functional principal component analysis.
- High dimensional data analysis: sparse linear regression for high-dimensional predictor variables and scalar or multivariate response variables, sparse linear and Fisher’s discriminant analysis, sparse principal component analysis.
- Parameter estimation in dynamical systems: parameter estimation in ordinary differential equations and partial differential equations.
- Applications of statistics to data in biology, medical images, environmental science, etc.
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Publications and Manuscripts
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Software: R packages and R codes
Teaching
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Courses taught:
- Applied functional data analysis (STAT 8550)
- Biostatistics (MATH4544/6544, BIOL4744/6744)
- Computational Methods in Statistics (STAT 8670)
- Elementary Statistics (MATH 1070)
- Experimental Designs (STAT 8630)
- Mathematical Statistics I (MATH 4751/6751)
- Mathematical Statistics II (MATH 4752/6752)
- Linear Regression Analysis I (STAT 8561)
- Probability Theory (STAT 8600)
- Time Series Analysis (STAT 8610)