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Analýza ko-výskytu×TF-IDF×Modelovanie tém×
OdborDolovanie textuDolovanie textuHlboké učenie
RodinaProcess / pipelineProcess / pipelineMachine learning
Rok vzniku195719881999–2003
TvorcaJ.R. Firth (distributional principle)Salton & BuckleyHofmann, T. (pLSA, 1999); Blei, D. M., Ng, A. Y., & Jordan, M. I. (LDA, 2003)
TypText-mining / distributional-semantics techniqueText vectorization / term-weighting schemeUnsupervised generative probabilistic model
Pôvodný zdrojFirth, J.R. (1957). A Synopsis of Linguistic Theory. Studies in Linguistic Analysis. Oxford: Blackwell. 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 ↗
Ďalšie názvyword co-occurrence, co-occurrence network, Kelime Eş-Oluşum Analiziterm weighting, tf-idf weighting, TF-IDF VektörizasyonuLatent Semantic Analysis, probabilistic topic modeling, topic discovery, thematic modeling
Príbuzné435
ZhrnutieCo-occurrence analysis is a text-mining technique that statistically counts the word pairs that appear together within a window or a sentence and uses their frequencies to reveal semantic maps and thematic structure. It rests on the distributional principle articulated by J.R. Firth in 1957 — that a word is characterised by the company it keeps.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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ScholarGatePorovnať metódy: Co-occurrence Analysis · TF-IDF · Topic Modeling. Získané 2026-06-19 z https://scholargate.app/sk/compare