Table 4 Number of queries containing distinct number of tags
From: A Study on Pubmed Search Tag Usage Pattern: Association Rule Mining of a Full-day Pubmed Query Log
Number of distinct tags | Number of queries | Relative frequency (%) |
|---|---|---|
0 | 2,585,183 | 88.61989 |
1 | 245,838 | 8.42731 |
2 | 34,731 | 1.19058 |
3 | 27,766 | 0.95182 |
4 | 16,320 | 0.55945 |
5 | 5,157 | 0.17678 |
6 | 1,956 | 0.06705 |
7 | 195 | 0.00668 |
8 | 10 | 0.00034 |
9 | 2 | 0.00007 |
10 | 0 | 0.00000 |
11 | 1 | 0.00003 |