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Analiza frekvencije teksta×TF-IDF×Modeliranje tema×
OblastRudarenje tekstaRudarenje tekstaDuboko učenje
PorodicaProcess / pipelineProcess / pipelineMachine learning
Godina nastanka194919881999–2003
TvoracGeorge K. Zipf (frequency-distribution foundation)Salton & BuckleyHofmann, T. (pLSA, 1999); Blei, D. M., Ng, A. Y., & Jordan, M. I. (LDA, 2003)
TipDescriptive text-mining analysisText vectorization / term-weighting schemeUnsupervised generative probabilistic model
Temeljni izvorZipf, G. K. (1949). Human Behavior and the Principle of Least Effort. Addison-Wesley. link ↗Salton, G. & Buckley, C. (1988). Term-weighting approaches in automatic text retrieval. Information Processing & Management, 24(5), 513-523. DOI ↗Blei, D. M., Ng, A. Y., & Jordan, M. I. (2003). Latent Dirichlet Allocation. Journal of Machine Learning Research, 3, 993–1022. link ↗
Drugi naziviword frequency analysis, n-gram frequency analysis, Metin Frekans Analiziterm weighting, tf-idf weighting, TF-IDF VektörizasyonuLatent Semantic Analysis, probabilistic topic modeling, topic discovery, thematic modeling
Srodne435
SažetakText frequency analysis is a descriptive text-mining method that counts how often words, n-grams, and phrases occur in a corpus to reveal content patterns and dominant themes. It rests on the frequency-distribution insight formalised by George K. Zipf (1949), that a few terms occur very often while most are rare, and it is one of the most basic and widely used entry points into quantitative text analysis.TF-IDF, introduced by Salton and Buckley (1988), is a term-weighting scheme that scores each word in a document by how often it appears there and how rare it is across the whole collection. It turns raw text into weighted document vectors, giving high weight to terms that are frequent in one document but uncommon elsewhere.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.
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ScholarGateUporedite metode: Text Frequency Analysis · TF-IDF · Topic Modeling. Preuzeto 2026-06-18 sa https://scholargate.app/sr/compare