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| BERT-upotukset – kontekstisidonnaiset tekstiesitykset× | TF-IDF× | |
|---|---|---|
| Tieteenala | Tekstinlouhinta | Tekstinlouhinta |
| Menetelmäperhe | Process / pipeline | Process / pipeline |
| Syntyvuosi≠ | 2019 | 1988 |
| Kehittäjä≠ | Devlin, Chang, Lee & Toutanova (Google AI) | Salton & Buckley |
| Tyyppi≠ | Contextual transformer text-representation method | Text vectorization / term-weighting scheme |
| Alkuperäislähde≠ | Devlin, J., Chang, M.-W., Lee, K. & Toutanova, K. (2019). BERT: Pre-training of Deep Bidirectional Transformers for Language Understanding. NAACL-HLT, 4171-4186. DOI ↗ | Salton, G. & Buckley, C. (1988). Term-weighting approaches in automatic text retrieval. Information Processing & Management, 24(5), 513-523. DOI ↗ |
| Rinnakkaisnimet | contextual embeddings, transformer embeddings, BERT Tabanlı Metin Gömülmeleri | term weighting, tf-idf weighting, TF-IDF Vektörizasyonu |
| Liittyvät≠ | 4 | 3 |
| Tiivistelmä≠ | BERT-based text embeddings, introduced by Devlin and colleagues at Google AI in 2019, turn text into context-sensitive dense vectors using a bidirectional Transformer encoder. Because the meaning of a word shifts with its context, BERT produces richer representations than static methods such as Word2Vec or topic models like LDA. | TF-IDF, introduced by Salton and Buckley (1988), is a term-weighting scheme that scores each word in a document by how often it appears there and how rare it is across the whole collection. It turns raw text into weighted document vectors, giving high weight to terms that are frequent in one document but uncommon elsewhere. |
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