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A list of all the posts and pages found on the site. For you robots out there is an XML version available for digesting as well.
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Posts
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Blog Post number 1
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portfolio
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publications
Empirical likelihood ratio test on quantiles under a density ratio model
Published in Electronic Journal of Statistics, 2021
Archer Gong Zhang, Guangyu Zhu, Jiahua Chen
Download here
Semiparametric inferences under a density ratio model
Published in PhD Dissertation, 2022
Archer Gong Zhang
Download here
Density ratio model with data-adaptive basis function
Published in Journal of Multivariate Analysis, 2022
Archer Gong Zhang, Jiahua Chen
Download here
talks
Empirical Likelihood Ratio Test on Quantiles under a Density Ratio Model
Published:
Winner of the General Student Research Presentation Award.
Estimation Efficiency under a Two-Sample Density Ratio Model
Published:
Abstract: In many applications, we collect independent samples from interconnected populations. These population distributions share some latent structure, so it is advantageous to jointly analyze the multiple samples. Recently, many researchers have advocated the use of the semiparametric density ratio model (DRM) to account for the latent structure the multiple populations share and have developed more efficient data analysis procedures based on pooled data. In this talk, we investigate the efficiency of some estimators under a two-sample DRM. We consider the scenario where we have two samples whose sizes grow to infinity at different rates, and study the DRM-based inferences for the population corresponding to the smaller-sized sample. We theoretically prove that some DRM-based estimators achieve the same asymptotic efficiency as the parametric estimates derived under a specific parametric model. Our simulation studies on quantile estimation help to confirm our theoretical results.
teaching
Multiple courses (at both undergraduate and graduate levels) from 2016 to 2021
Teaching Assistant, University of British Columbia, 2016
STAT 302 - Introduction to Probability (Fall 2019, term 2)
Sessional Lecturer, University of British Columbia, 2020