​
relevant
10
β
0.5
relevant retri
eved
2
2
precision
1
10
0.10
recall
1
5
0.2
F-measure
2
15
0.13
F
β
0.3333
0.33
P(5)
0
0
P(10)
0
0
P(15)
1
15
0.067
average prec
ision
47
2660
0.018