Computers and Technology, 08.02.2021 18:50 Abrow484
The following list of Rs and Ns represents relevant (R) and nonrelevant (N) returned documents in a ranked list of 20 documents retrieved in response to a query from a collection of 50,000 documents. The top of the ranked list (the document the system thinks is most likely to be relevant) is on the left of the list. This list shows 6 relevant documents. Assume that there are 8 relevant documents in total in the collection. RR R N R NNN R R
Required:
a. What is the precision of the system on the top 20?
b. What is the recall of the system on the top 20?
c. What is the F1 on the top 201?
Answers: 3
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The following list of Rs and Ns represents relevant (R) and nonrelevant (N) returned documents in a...
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