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  3. whats the difference between dimensionality reduction and feature selection describe...

Question: whats the difference between dimensionality reduction and feature selection describe...

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  1. What's the difference between dimensionality reduction and feature selection?

  1. Describe in detail 2 different techniques for feature selection.

  1. Given a sample dataset (represented by a set of attributes, a correlation matrix, a co-variance matrix, ...), apply feature selection techniques to select the best attributes to keep (or equivalently, the best attributes to remove).

  1. What's the difference between feature selection and feature extraction?

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