Linganisha mbinu

	Mfumo wa Mfumo wa Mada wa NMF	Uundaji wa Mada
Nyanja	Ujifunzaji wa Kina	Ujifunzaji wa Kina
Familia	Machine learning	Machine learning
Mwaka wa asili	1999	1999–2003
Mwanzilishi	Lee, D. D. & Seung, H. S.	Hofmann, T. (pLSA, 1999); Blei, D. M., Ng, A. Y., & Jordan, M. I. (LDA, 2003)
Aina	Matrix factorization / unsupervised topic model	Unsupervised generative probabilistic model
Chanzo asilia	Lee, D. D., & Seung, H. S. (1999). Learning the parts of objects by non-negative matrix factorization. Nature, 401(6755), 788–791.	Blei, D. M., Ng, A. Y., & Jordan, M. I. (2003). Latent Dirichlet Allocation. Journal of Machine Learning Research, 3, 993–1022.
Majina mbadala	NMF, Non-negative Matrix Factorization, NMF for Topic Modeling, NNMF Topic Model	Latent Semantic Analysis, probabilistic topic modeling, topic discovery, thematic modeling
Zinazohusiana	4	5
Muhtasari	Non-negative Matrix Factorization (NMF) is an unsupervised matrix decomposition method that discovers latent topics in a text corpus by factoring a document-term matrix into two non-negative matrices — one encoding topic-word weights, the other document-topic weights. The non-negativity constraint yields parts-based, additive representations that tend to produce clean, interpretable topics.	Topic Modeling is a family of unsupervised probabilistic techniques for discovering latent thematic structure in large text collections. By learning which words tend to co-occur, models such as Latent Dirichlet Allocation (LDA) automatically surface coherent topics — each represented as a distribution over vocabulary — without requiring labelled data.