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Unsupervised Learning: Difference between revisions
→Dimension Reduction
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==Dimension Reduction== | ==Dimension Reduction== | ||
Goal: Reduce the dimension of a dataset.<br> | Goal: Reduce the dimension of a dataset.<br> | ||
If each example <math>x \in \mathbb{R}^n</math>, we want to reduce each example to be in <math>\mathbb{R}^r<math> where <math>r < n</math> | If each example <math>x \in \mathbb{R}^n</math>, we want to reduce each example to be in <math>\mathbb{R}^r</math> where <math>r < n</math> | ||
===PCA=== | ===PCA=== | ||
Principal Component Analysis<br> | Principal Component Analysis<br> | ||