Assuming that out of 200 documents, 40 documents are relevant. A search engine returns 30 documents, out of which 12 are relevant. What is the recall in this case? A. 20% B. 30% C. 40% D. 75%
Assuming that out of 200 documents, 40 documents are relevant. A search engine returns 30 documents, out of which 12 are relevant. What is the recall in this case? A. 20% B. 30% C. 40% D. 75%
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:Assuming that out of 200 documents, 40
documents are relevant. A search engine
returns 30 documents, out of which 12 are
relevant. What is the recall in this case?
А.
20%
В.
30%
С.
40%
D.
75%
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