Compară metode

	Modelarea Temelor	Clustering de documente
Domeniu	Mineritul textelor	Mineritul textelor
Familie	Process / pipeline	Process / pipeline
Anul apariției	2003	—
Autorul original	Blei, Ng & Jordan	—
Tip	Generative probabilistic topic model	Unsupervised text-mining task
Sursa seminală	Blei, D.M., Ng, A.Y. & Jordan, M.I. (2003). Latent Dirichlet Allocation. Journal of Machine Learning Research, 3, 993-1022.	Aggarwal, C. C. & Zhai, C. (2012). Mining Text Data. Springer. ISBN: 9781461432227
Denumiri alternative	LDA, latent Dirichlet allocation, Konu Modelleme — LDA	text clustering, unsupervised text grouping, Belge Kümeleme (Document Clustering)
Înrudite	4	4
Rezumat	Latent Dirichlet Allocation (LDA) is a generative probabilistic model introduced by Blei, Ng and Jordan (2003) that extracts the hidden topic distributions underlying a collection of documents. It treats each document as a mixture of latent topics and each topic as a distribution over words, turning an unlabelled corpus into interpretable themes.	Document clustering is an unsupervised text-mining task that groups documents with similar content together without using any labels. It is used to organise large collections and for exploratory analysis, drawing on the body of text-mining techniques consolidated by Aggarwal and Zhai (2012) and compared empirically by Steinbach, Karypis and Kumar (2000).