Why feature extraction is important?

Related questions

1. Why are variables important in research?
2. What is F score in feature importance?
3. What is a strong learner?
4. What is random forest feature importance?
5. How does feature extraction work?
6. How does feature selection work?
7. What is XGBoost feature importance?
8. Why is feature engineering important?
9. Does Random Forest select a subset of features for every tree or every node?
10. How do you determine variable importance?

Tags

1. #extraction
2. #transforms
3. #enhance
4. #predictive
5. #according
6. #speed
7. #ranks
8. #effectiveness
9. #attributes
10. #feature
11. #reduction
12. #attribute
13. #process
14. #selection
15. #unlike
16. #significance
17. #supervised
18. #learning
19. #which
20. #their
21. #existing
22. #actually