השוואת שיטות

	מודל נושאים LDA מונחה-למחצה	מודל נושאים LDA
תחום	למידה עמוקה	למידה עמוקה
משפחה	Machine learning	Machine learning
שנת המקור	2009	2003
הוגה השיטה	Ramage, D.; Andrzejewski, D. et al.	Blei, D. M., Ng, A. Y., & Jordan, M. I.
סוג	Semi-supervised probabilistic topic model	Probabilistic generative topic model
מקור מכונן	Ramage, D., Hall, D., Nallapati, R., & Manning, C. D. (2009). Labeled LDA: A supervised topic model for credit attribution in multi-labeled corpora. Proceedings of EMNLP, 248–256.	Blei, D. M., Ng, A. Y., & Jordan, M. I. (2003). Latent Dirichlet Allocation. Journal of Machine Learning Research, 3, 993–1022.
כינויים	Labeled LDA, Seeded LDA, Constrained LDA, SS-LDA	LDA, Latent Dirichlet Allocation, LDA Topic Modeling, Dirichlet Topic Model
קשורות	6	5
תקציר	Semi-supervised LDA extends standard Latent Dirichlet Allocation by incorporating a small amount of supervision — seed words, labeled documents, or must-link/cannot-link word constraints — to guide topic discovery toward semantically coherent, interpretable themes. It bridges unsupervised topic modeling and fully supervised text classification, making it especially valuable when full annotation is costly.	Latent Dirichlet Allocation (LDA) is a probabilistic generative model introduced by Blei, Ng, and Jordan in 2003 that discovers hidden thematic structure in large text collections by representing each document as a mixture of latent topics and each topic as a probability distribution over vocabulary words.