Chenguang Du

Hierarchical Neural Topic Model with Embedding Cluster and Neural Variational Inference

2023 · Society for Industrial and Applied Mathematics eBooks

Compared to flat topic models, hierarchical topic models not only exploit inherent structural information in the corpus but detect better semantic topics with the help of hierarchy knowledge. Recently, Neural-Variational-Inference (NVI) based hierarchical neural topic …

Seq-HGNN: Learning Sequential Node Representation on Heterogeneous Graph

2023

Recent years have witnessed the rapid development of heterogeneous graph neural networks (HGNNs) in information retrieval (IR) applications. Many existing HGNNs design a variety of tailor-made graph convolutions to capture structural and semantic information in …