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| Dokumentumok klaszterezése× | Szemantikai hasonlóság× | Szöveges hangulatelemzés× | |
|---|---|---|---|
| Tudományterület | Szövegbányászat | Szövegbányászat | Szövegbányászat |
| Módszercsalád | Process / pipeline | Process / pipeline | Process / pipeline |
| Keletkezés éve≠ | — | 2019 | — |
| Megalkotó≠ | — | Nils Reimers & Iryna Gurevych (Sentence-BERT) | — |
| Típus≠ | Unsupervised text-mining task | NLP text-comparison task | NLP text-classification task |
| Alapmű≠ | Aggarwal, C. C. & Zhai, C. (2012). Mining Text Data. Springer. ISBN: 9781461432227 | Reimers, N. & Gurevych, I. (2019). Sentence-BERT: Sentence Embeddings using Siamese BERT-Networks. EMNLP. link ↗ | Pang, B. & Lee, L. (2008). Opinion Mining and Sentiment Analysis. Foundations and Trends in Information Retrieval, 2(1-2), 1-135. DOI ↗ |
| Alternatív nevek | text clustering, unsupervised text grouping, Belge Kümeleme (Document Clustering) | semantic textual similarity, text similarity, Anlamsal Benzerlik Analizi | opinion mining, polarity detection, duygu analizi |
| Kapcsolódó≠ | 4 | 4 | 3 |
| Összefoglaló≠ | 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). | Semantic similarity analysis measures how close in meaning two texts are, rather than how many words they share on the surface. Building on the Sentence-BERT work of Reimers and Gurevych (2019), it represents each text as a vector and compares those vectors so that paraphrases score high even when their wording differs. | Sentiment analysis, also called opinion mining, is a natural-language-processing task that detects the emotional tone of text — typically classifying it as positive, negative, or neutral. It turns unstructured opinion text into structured, quantifiable polarity signals using one of three families of approaches: sentiment lexicons, trained machine-learning classifiers, or pretrained transformer models. |
| ScholarGateAdatkészlet ↗ |
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