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| Text Segmentation× | Sprachidentifikation (LID)× | Sentiment-Analyse× | |
|---|---|---|---|
| Fachgebiet | Text Mining | Text Mining | Text Mining |
| Familie | Process / pipeline | Process / pipeline | Process / pipeline |
| Entstehungsjahr≠ | 1997 | — | — |
| Urheber≠ | Marti A. Hearst (TextTiling) | — | — |
| Typ≠ | NLP document-structure / topic-boundary detection | NLP text-classification task | NLP text-classification task |
| Wegweisende Quelle≠ | Hearst, M.A. (1997). TextTiling: Segmenting Text into Multi-Paragraph Subtopic Passages. Computational Linguistics, 23(1), 33-64. link ↗ | Lui, M. & Baldwin, T. (2012). langid.py: An Off-the-shelf Language Identification Tool. Proceedings of the ACL 2012 System Demonstrations. link ↗ | Pang, B. & Lee, L. (2008). Opinion Mining and Sentiment Analysis. Foundations and Trends in Information Retrieval, 2(1-2), 1-135. DOI ↗ |
| Aliasnamen≠ | topic segmentation, discourse segmentation, linear text segmentation, Metin Bölümleme (Text Segmentation) | language detection, LID, Dil Tanımlama (Language Identification) | opinion mining, polarity detection, duygu analizi |
| Verwandt≠ | 4 | 4 | 3 |
| Zusammenfassung≠ | Text segmentation divides a long document into meaningful sections (segments) along topic or discourse boundaries. Introduced for subtopic passages by Marti A. Hearst's TextTiling (1997), it supports document-structure analysis and the detection of topic transitions in continuous text. | Language identification is a natural-language-processing task that automatically detects which language a piece of text is written in. Building on off-the-shelf tools such as langid.py (Lui & Baldwin, 2012) and the efficient classifiers of Joulin et al. (2017), it is widely used to preprocess and filter multilingual data sets. | 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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