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| Mechanizmus pozornosti× | Analýza sentimentu× | |
|---|---|---|
| Odbor≠ | Hlboké učenie | Dolovanie textu |
| Rodina≠ | Machine learning | Process / pipeline |
| Rok vzniku≠ | 2015 | — |
| Tvorca≠ | Bahdanau, D.; Luong, M.T. | — |
| Typ≠ | Neural attention layer (encoder-decoder) | NLP text-classification task |
| Pôvodný zdroj≠ | Bahdanau, D., Cho, K. & Bengio, Y. (2015). Neural Machine Translation by Jointly Learning to Align and Translate. ICLR. link ↗ | Pang, B. & Lee, L. (2008). Opinion Mining and Sentiment Analysis. Foundations and Trends in Information Retrieval, 2(1-2), 1-135. DOI ↗ |
| Ďalšie názvy≠ | Dikkat Mekanizması (Bahdanau / Luong Attention), dikkat mekanizmasi, neural attention, additive attention | opinion mining, polarity detection, duygu analizi |
| Príbuzné≠ | 5 | 3 |
| Zhrnutie≠ | The attention mechanism, introduced by Bahdanau, Cho and Bengio in 2015 and refined by Luong, Pham and Manning the same year, lets a sequence decoder dynamically learn which of the encoder's outputs to focus on at each step. Before the Transformer, it substantially improved machine-translation quality by freeing models from compressing an entire input into a single fixed vector. | 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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