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Chengqian Xian

3 papers hereh-index 321 citations10 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • sole author1
  • first author2

Across the 3 of 3 papers where every author was matched, so the position is known.

fields
  • stat.ME3

identity via Semantic Scholar / OpenAlex

activity
20232026
collaborators

3 papers

stat.ME2026

Variational Inference for Functional Data Clustering via Dirichlet Process Mixtures with Correlated Errors

Chengqian Xian

We propose a Bayesian model-based approach for clustering functional data with an unknown number of clusters and temporally correlated observations. Cluster-specific mean functions…

stat.ME2024

Fast variational Bayesian inference for correlated survival data: an application to invasive mechanical ventilation duration analysis

Chengqian Xian, Camila P. E. de Souza, Wenqing He +2

Correlated survival data are prevalent in various clinical settings and have been extensively discussed in literature. One of the most common types of correlated survival data is c…

stat.ME2023

Variational Bayesian analysis of survival data using a log-logistic accelerated failure time model

Chengqian Xian, Camila P. E. de Souza, Wenqing He +2

The log-logistic regression model is one of the most commonly used accelerated failure time (AFT) models in survival analysis, for which statistical inference methods are mainly es…

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