Type of User

Total Number of Recommendation Results

Number of Useful Results

Precision

Average Precision

Inexperienced Cloud Service User

4

3

0.75

0.5

4

3

0.75

4

0

0.00

4

2

0.50

Eexperienced Cloud Service User

6

4

0.67

0.76

6

5

0.83

8

7

0.88

6

4

0.67