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| 半教師あり学習× | 投票アンサンブル× | |
|---|---|---|
| 分野 | 機械学習 | 機械学習 |
| 系統 | Machine learning | Machine learning |
| 提唱年≠ | 1970s–2006 (formalized) | 1990s–2004 |
| 提唱者≠ | Vapnik, V. N. and others (community of researchers, 1970s–2000s) | Lam & Suen; Kuncheva, L. I. (systematic treatment) |
| 種類≠ | Learning paradigm | Ensemble (combination of multiple classifiers by vote) |
| 原典≠ | Chapelle, O., Scholkopf, B., & Zien, A. (Eds.) (2006). Semi-Supervised Learning. MIT Press. ISBN: 978-0-262-03358-9 | Kuncheva, L. I. (2004). Combining Pattern Classifiers: Methods and Algorithms. Wiley-Interscience. ISBN: 978-0-471-21078-8 |
| 別名 | SSL, semi-supervised machine learning, transductive learning, label-efficient learning | majority voting classifier, hard voting, soft voting ensemble, plurality voting ensemble |
| 関連 | 5 | 5 |
| 概要≠ | Semi-supervised learning (SSL) is a machine learning paradigm that trains models using a small set of labeled examples together with a much larger pool of unlabeled data. By leveraging the structure inherent in unlabeled data, SSL achieves accuracy closer to fully supervised models while requiring far fewer costly manual labels — making it practical when labeling is expensive, slow, or resource-constrained. | A voting ensemble trains several diverse classifiers independently and combines their predictions by a vote: hard voting picks the class chosen by the most models, while soft voting averages their class-probability estimates, optionally with per-model weights. The combination usually outperforms any individual member, and requires no additional training after the base models are fitted. |
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