Nonlinear Structural Equation Model Guided Gaussian Mixture Hierarchical Topic Modeling.
Hegang ChenPengbo MaoYuyin LuYanghui RaoPublished in: ACL (1) (2023)
Keyphrases
- topic modeling
- gaussian mixture
- structural equation models
- topic models
- em algorithm
- covariance matrix
- expectation maximization
- gaussian mixture model
- probability density function
- closed form
- latent dirichlet allocation
- text mining
- mixture model
- text classification
- causal effects
- collaborative filtering
- causal models
- probabilistic model
- generative model
- density estimation
- online discussion
- learning algorithm
- unsupervised learning
- model selection
- data analysis