标签:Semi unlabeled hat supervised Learning data
Semi-supervised Learning
1. What is Semi-supervised Learning
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Supervised Learning
labeled data:\(\{(x^r,\hat{y}^r\}_{r=1}^R\)
E.g: image,\(\hat{y}^r\): class labeles
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Unsupervised Learning
unlabeled data:\(\{x^r\}_{r=1}^R\)
E.g: Clustering problem
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Semi-supervised Learning
both labeled data and unlabeled data:\(\{(x^r,\hat{y}^r)\}_{r=1}^R,\{x^u\}_{u=R}^{R+U}\)
- A set of unlabeled data,usually U >> R
- Transductive Learning: unlabeled data is the testing data
- Inductive Learning: unlabeled data is not the testing data
2. Why Semi-supervied Learning
- It's easy to collect unlabeled data
- We do semi-supervied learning in our lives
标签:Semi,unlabeled,hat,supervised,Learning,data 来源: https://www.cnblogs.com/popodynasty/p/14397568.html
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