49 citations · 70 across the 4 of their papers we have counts for
4 papers
Mixed-Response State-Space Model for Analyzing Multi-Dimensional Digital Phenotypes
Tianchen Xu, Yuan Chen, Donglin Zeng +1
Digital technologies (e.g., mobile phones) can be used to obtain objective, frequent, and real-world digital phenotypes from individuals. However, modeling these data poses substan…
Representation Learning for Integrating Multi-domain Outcomes to Optimize Individualized Treatments
Yuan Chen, Donglin Zeng, Tianchen Xu +1
For mental disorders, patients' underlying mental states are non-observed latent constructs which have to be inferred from observed multi-domain measurements such as diagnostic sym…
The More Data, the Better? Demystifying Deletion-Based Methods in Linear Regression with Missing Data
Tianchen Xu, Kun Chen, Gen Li
We compare two deletion-based methods for dealing with the problem of missing observations in linear regression analysis. One is the complete-case analysis (CC, or listwise deletio…
Zero-inflated Poisson Factor Model with Application to Microbiome Absolute Abundance Data
Tianchen Xu, Ryan T. Demmer, Gen Li
Dimension reduction of high-dimensional microbiome data facilitates subsequent analysis such as regression and clustering. Most existing reduction methods cannot fully accommodate…