Comparer des méthodes
Examinez les méthodes sélectionnées côte à côte ; les lignes qui diffèrent sont mises en évidence.
| Analyse du discours× | Analyse des sentiments× | |
|---|---|---|
| Domaine≠ | Recherche qualitative | Fouille de textes |
| Famille | Process / pipeline | Process / pipeline |
| Année d'origine≠ | 1989 (Fairclough); 1987 (Potter & Wetherell) | — |
| Auteur d'origine≠ | Norman Fairclough; Jonathan Potter and Margaret Wetherell | — |
| Type≠ | Method | NLP text-classification task |
| Source fondatrice≠ | Fairclough, N. (1989). Language and power. Longman. link ↗ | Pang, B. & Lee, L. (2008). Opinion Mining and Sentiment Analysis. Foundations and Trends in Information Retrieval, 2(1-2), 1-135. DOI ↗ |
| Alias | DA, Critical Discourse Analysis, Discursive Analysis | opinion mining, polarity detection, duygu analizi |
| Apparentées≠ | 2 | 3 |
| Résumé≠ | Discourse analysis is a qualitative research methodology that examines how language, communication, and power shape meaning, identity, and social reality. Developed across linguistics, sociology, and psychology (particularly by Norman Fairclough and Jonathan Potter), discourse analysis goes beyond content to analyze language use as a social practice that constitutes and reflects power relations, ideologies, and social structures. | 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. |
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