Deep variational graph convolutional recurrent network for multivariate time series anomaly detection

W Chen, L Tian, B Chen, L Dai… - … on machine learning, 2022 - proceedings.mlr.press
Anomaly detection within multivariate time series (MTS) is an essential task in both data
mining and service quality management. Many recent works on anomaly detection focus on …

Graph neural networks for text classification: A survey

K Wang, Y Ding, SC Han - Artificial Intelligence Review, 2024 - Springer
Text Classification is the most essential and fundamental problem in Natural Language
Processing. While numerous recent text classification models applied the sequential deep …

WHAI: Weibull hybrid autoencoding inference for deep topic modeling

H Zhang, B Chen, D Guo, M Zhou - arXiv preprint arXiv:1803.01328, 2018 - arxiv.org
To train an inference network jointly with a deep generative topic model, making it both
scalable to big corpora and fast in out-of-sample prediction, we develop Weibull hybrid …

Knowledge-aware Bayesian deep topic model

D Wang, Y Xu, M Li, Z Duan, C Wang… - Advances in …, 2022 - proceedings.neurips.cc
We propose a Bayesian generative model for incorporating prior domain knowledge into
hierarchical topic modeling. Although embedded topic models (ETMs) and its variants have …

Sawtooth factorial topic embeddings guided gamma belief network

Z Duan, D Wang, B Chen, C Wang… - International …, 2021 - proceedings.mlr.press
Hierarchical topic models such as the gamma belief network (GBN) have delivered
promising results in mining multi-layer document representations and discovering …

Topic compositional neural language model

W Wang, Z Gan, W Wang, D Shen… - International …, 2018 - proceedings.mlr.press
Abstract We propose a Topic Compositional Neural Language Model (TCNLM), a novel
method designed to simultaneously capture both the global semantic meaning and the local …

Augmentable gamma belief networks

M Zhou, Y Cong, B Chen - Journal of Machine Learning Research, 2016 - jmlr.org
To infer multilayer deep representations of high-dimensional discrete and nonnegative real
vectors, we propose an augmentable gamma belief network (GBN) that factorizes each of its …

Bayesian progressive deep topic model with knowledge informed textual data coarsening process

Z Duan, X Liu, Y Su, Y Xu, B Chen… - … on Machine Learning, 2023 - proceedings.mlr.press
Deep topic models have shown an impressive ability to extract multi-layer document latent
representations and discover hierarchical semantically meaningful topics. However, most …

Context-guided embedding adaptation for effective topic modeling in low-resource regimes

Y Xu, J Sun, Y Su, X Liu, Z Duan… - Advances in Neural …, 2024 - proceedings.neurips.cc
Embedding-based neural topic models have turned out to be a superior option for low-
resourced topic modeling. However, current approaches consider static word embeddings …

Learning dynamic hierarchical topic graph with graph convolutional network for document classification

Z Wang, C Wang, H Zhang, Z Duan… - International …, 2020 - proceedings.mlr.press
Constructing a graph with graph convolutional network (GCN) to explore the relational
structure of the data has attracted lots of interests in various tasks. However, for document …