relevant
10
β
0
.
5
relevant
retrieved
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
precision
47
2
660
0
.
018
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
