Usporedite metode

	Analiza ko-okurencije	TF-IDF
Područje	Rudarenje teksta	Rudarenje teksta
Obitelj	Process / pipeline	Process / pipeline
Godina nastanka	1957	1988
Tvorac	J.R. Firth (distributional principle)	Salton & Buckley
Vrsta	Text-mining / distributional-semantics technique	Text vectorization / term-weighting scheme
Temeljni izvor	Firth, J.R. (1957). A Synopsis of Linguistic Theory. Studies in Linguistic Analysis. Oxford: Blackwell.	Salton, G. & Buckley, C. (1988). Term-weighting approaches in automatic text retrieval. Information Processing & Management, 24(5), 513-523.
Drugi nazivi	word co-occurrence, co-occurrence network, Kelime Eş-Oluşum Analizi	term weighting, tf-idf weighting, TF-IDF Vektörizasyonu
Srodne	4	3
Sažetak	Co-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.