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| 메트릭 학습× | 자기 지도 학습× | |
|---|---|---|
| 분야 | 머신러닝 | 머신러닝 |
| 계열 | Machine learning | Machine learning |
| 기원 연도≠ | 2003 (foundational); refined 2009 (LMNN) | 2018–2020 |
| 창시자≠ | Xing, E. P.; Jordan, M. I.; Russell, S.; Ng, A. Y. | LeCun, Y. and community (formalized ~2018–2020) |
| 유형≠ | Representation learning / supervised distance optimization | Representation learning paradigm |
| 원전≠ | Xing, E. P., Jordan, M. I., Russell, S., & Ng, A. Y. (2003). Distance metric learning with application to clustering with side-information. In Advances in Neural Information Processing Systems (NIPS), 16, 505–512. link ↗ | LeCun, Y. & Misra, I. (2022). Self-supervised learning: The dark matter of intelligence. Meta AI Blog. https://ai.facebook.com/blog/self-supervised-learning-the-dark-matter-of-intelligence/ link ↗ |
| 별칭 | Distance Metric Learning, Similarity Learning, DML, Representation Learning via Distance | SSL, self-supervised pre-training, pretext-task learning, unsupervised representation learning |
| 관련≠ | 5 | 3 |
| 요약≠ | Metric learning is a machine-learning framework that trains a distance or similarity function from data so that semantically similar examples end up close together in the learned space while dissimilar examples are pushed apart. Unlike fixed distances such as Euclidean, the learned metric adapts to the structure of the task, making downstream classifiers, clusterers, and retrieval systems significantly more accurate. | Self-supervised learning (SSL) is a machine-learning paradigm that generates its own supervisory signal directly from unlabeled data by defining an auxiliary pretext task — such as predicting masked words, rotating images, or contrasting augmented views — and uses the learned representations as a powerful starting point for downstream tasks with minimal labeled examples. |
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