What does TF IDF measure?

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Tags

1. #often
2. #information
3. #retrieval
4. #search
5. #scoring
6. #central
7. #ranking
8. #weight
9. #relevance
10. #inverse
11. #weighting
12. #document
13. #stands
14. #variations
15. #scheme
16. #query
17. #given
18. #frequency
19. #mining
20. #engines