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| Szövegosztályozás× | Tematikus modellezés× | |
|---|---|---|
| Tudományterület≠ | Szövegbányászat | Mélytanulás |
| Módszercsalád≠ | Process / pipeline | Machine learning |
| Keletkezés éve≠ | — | 1999–2003 |
| Megalkotó≠ | — | Hofmann, T. (pLSA, 1999); Blei, D. M., Ng, A. Y., & Jordan, M. I. (LDA, 2003) |
| Típus≠ | Supervised NLP classification task | Unsupervised generative probabilistic model |
| Alapmű≠ | Joachims, T. (1998). Text Categorization with Support Vector Machines: Learning with Many Relevant Features. ECML 1998. Lecture Notes in Computer Science, vol 1398. Springer. DOI ↗ | Blei, D. M., Ng, A. Y., & Jordan, M. I. (2003). Latent Dirichlet Allocation. Journal of Machine Learning Research, 3, 993–1022. link ↗ |
| Alternatív nevek | text categorization, document classification, topic classification, metin sınıflandırma | Latent Semantic Analysis, probabilistic topic modeling, topic discovery, thematic modeling |
| Kapcsolódó≠ | 4 | 5 |
| Összefoglaló≠ | Text classification, also called text categorization, is a supervised natural-language-processing task that automatically assigns documents to predefined categories. Building on the support-vector-machine approach to text categorization established by Joachims (1998) and consolidated in the text-mining literature by Aggarwal and Zhai (2012), it powers tasks such as spam detection and topic classification by learning from labelled examples. | 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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