What is the use of feature extraction?

Related questions

1. How does random forest calculate feature importance?
2. How does random forest calculate probability?
3. Does random forest need feature selection?
4. What is mean decrease Gini?
5. How do you select features in machine learning?
6. Why is correlation important in machine learning?
7. When would you use random forests vs SVM and why?
8. Why is random forest good?
9. Why do we need feature selection?
10. What is XGBoost feature importance?

Tags

1. #cases
2. #subsequent
3. #image
4. #recognition
5. #processing
6. #extraction
7. #facilitating
8. #generalization
9. #human
10. #machine
11. #redundant
12. #learning
13. #values
14. #leading
15. #steps
16. #pattern
17. #informative
18. #better
19. #intended
20. #starts
21. #measured
22. #features
23. #feature
24. #derived
25. #initial
26. #builds