Methodological Research

Bayesian & Nonparametric Modeling

Flexible models that let the data determine their own complexity — spanning Bayesian nonparametrics, variational inference, and mixture modeling.

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Overview

About this work

My work in Bayesian nonparametrics develops models that let the data determine their own complexity, rather than fixing the number of components or a functional form in advance. A central thread is Bayesian nonparametric latent class analysis and Dirichlet process mixture modeling, with applications to clustering, density estimation, and missing data.

I am also interested in scalable estimation for these models through variational inference, and in making nonparametric methods practical and accessible for applied researchers.

Selected Work

Related publications

2025

Bayesian nonparametric latent class analysis with different item types

M. Qiu, S. Paganin, I. Ohn, & L. Lin
Psychological Methods
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Bayesian nonparametric latent class analysis for different item types

M. Qiu, S. Paganin, I. Ohn, & L. Lin
Multivariate Behavioral Research
2022

A tutorial on Bayesian latent class analysis using JAGS

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Journal of Behavioral Data Science