So sánh phương pháp

	Mô hình Chủ đề NMF Tự giám sát	Phân bổ Dirichlet ẩn (LDA)
Lĩnh vực	Học sâu	Học máy
Họ	Machine learning	Latent structure
Năm ra đời	2020–2022	2003
Người khởi xướng	Multiple groups (building on Lee & Seung, 1999; self-supervised extensions ca. 2020–2022)	Blei, D. M.; Ng, A. Y.; Jordan, M. I.
Loại	Unsupervised / self-supervised topic model	Generative probabilistic topic model (three-level hierarchical Bayesian)
Công trình gốc	Shi, T., Guo, X., Lv, J., & Yu, P. S. (2022). Self-supervised NMF-based graph contrastive learning for semi-supervised node classification. In Proceedings of the 36th AAAI Conference on Artificial Intelligence.	Blei, D. M., Ng, A. Y., & Jordan, M. I. (2003). Latent Dirichlet allocation. Journal of Machine Learning Research, 3, 993–1022.
Tên gọi khác	SS-NMF, self-supervised topic modeling, NMF with self-supervised signals, contrastive NMF topic model	LDA, topic model, Blei-Ng-Jordan model, probabilistic topic modeling
Liên quan	2	3
Tóm tắt	The Self-supervised NMF Topic Model extends classical Non-negative Matrix Factorization for topic discovery by incorporating self-supervised learning signals — such as masked-word reconstruction or contrastive objectives — into the NMF optimization, yielding more coherent and semantically meaningful topics from text corpora without requiring any human-labeled data.	Latent Dirichlet Allocation (LDA) is a generative probabilistic model for collections of discrete data, introduced by Blei, Ng, and Jordan in 2003. It treats each document as a mixture of latent topics and each topic as a probability distribution over words, enabling unsupervised discovery of thematic structure across large text corpora. It is one of the most cited papers in machine learning and natural language processing.