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| 文本分类× | 关键词提取× | 情感分析× | |
|---|---|---|---|
| 领域 | 文本挖掘 | 文本挖掘 | 文本挖掘 |
| 方法族 | Process / pipeline | Process / pipeline | Process / pipeline |
| 起源年份 | — | — | — |
| 提出者 | — | — | — |
| 类型≠ | Supervised NLP classification task | NLP text-mining task | NLP text-classification task |
| 开创性文献≠ | 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 ↗ | Mihalcea, R. & Tarau, P. (2004). TextRank: Bringing Order into Texts. EMNLP, 404-411. link ↗ | Pang, B. & Lee, L. (2008). Opinion Mining and Sentiment Analysis. Foundations and Trends in Information Retrieval, 2(1-2), 1-135. DOI ↗ |
| 别名≠ | text categorization, document classification, topic classification, metin sınıflandırma | keyphrase extraction, key term extraction, Anahtar Kelime Çıkarma (Keyword Extraction) | opinion mining, polarity detection, duygu analizi |
| 相关≠ | 4 | 4 | 3 |
| 摘要≠ | 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. | Keyword extraction is a natural-language-processing task that automatically identifies the words or phrases that best represent the content of a document. It turns a body of free text into a compact, ranked list of key terms, drawing on statistical, graph-based methods such as TextRank (Mihalcea & Tarau, 2004), or embedding-based methods such as KeyBERT (Grootendorst, 2020). | 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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