Nonlinear Structural Equation Model Guided Gaussian Mixture Hierarchical Topic Modeling. - Hegang Chen; Pengbo Mao; Yuyin Lu; Yanghui Rao (ACL (1), 2023)

Contrastive learning for hierarchical topic modeling. - Pengbo Mao; Hegang Chen; Yanghui Rao; Haoran Xie 001; Fu Lee Wang (Nat. Lang. Process. J., 2024)

Self-supervised Topic Taxonomy Discovery in the Box Embedding Space. - Yuyin Lu; Hegang Chen; Pengbo Mao; Yanghui Rao; Haoran Xie 001; Fu Lee Wang; Qing Li 001 (Trans. Assoc. Comput. Linguistics, 2024)