| TABLE 4.2 Two Hypothetical Retrievals |
|---|
| Query 1 | Query 2 |
| | Relevant? | NRel | Recall | Precision | Relevant? | NRel | Recall | Precision |
| 1 |
1 |
1 |
0.20 |
1.00 |
0 |
0 |
0.00 |
0.00 |
| 2 |
1 |
2 |
0.40 |
1.00 |
0 |
0 |
0.00 |
0.00 |
| 3 |
0 |
2 |
0.40 |
0.67 |
0 |
0 |
0.00 |
0.00 |
| 4 |
1 |
3 |
0.60 |
0.75 |
1 |
1 |
0.50 |
0.25 |
| 5 |
0 |
3 |
0.60 |
0.60 |
0 |
1 |
0.50 |
0.20 |
| 6 |
0 |
3 |
0.60 |
0.50 |
0 |
1 |
0.50 |
0.17 |
| 7 |
0 |
3 |
0.60 |
0.43 |
0 |
1 |
0.50 |
0.14 |
| 8 |
0 |
3 |
0.60 |
0.38 |
0 |
1 |
0.50 |
0.13 |
| 9 |
0 |
3 |
0.60 |
0.33 |
0 |
1 |
0.50 |
0.11 |
| 10 |
0 |
3 |
0.60 |
0.30 |
0 |
1 |
0.50 |
0.10 |
| 11 |
0 |
3 |
0.60 |
0.27 |
0 |
1 |
0.50 |
0.09 |
| 12 |
0 |
3 |
0.60 |
0.25 |
0 |
1 |
0.50 |
0.08 |
| 13 |
0 |
3 |
0.60 |
0.23 |
0 |
1 |
0.50 |
0.08 |
| 14 |
0 |
3 |
0.60 |
0.21 |
0 |
1 |
0.50 |
0.07 |
| 15 |
1 |
4 |
0.80 |
0.27 |
1 |
2 |
1.00 |
0.13 |
| 16 |
0 |
4 |
0.80 |
0.25 |
0 |
2 |
1.00 |
0.13 |
| 17 |
0 |
4 |
0.80 |
0.24 |
0 |
2 |
1.00 |
0.12 |
| 18 |
0 |
4 |
0.80 |
0.22 |
0 |
2 |
1.00 |
0.11 |
| 19 |
0 |
4 |
0.80 |
0.21 |
0 |
2 |
1.00 |
0.11 |
| 20 |
0 |
4 |
0.80 |
0.20 |
0 |
2 |
1.00 |
0.10 |
| 21 |
0 |
4 |
0.80 |
0.19 |
0 |
2 |
1.00 |
0.10 |
| 22 |
0 |
4 |
0.80 |
0.18 |
0 |
2 |
1.00 |
0.09 |
| 23 |
0 |
4 |
0.80 |
0.17 |
0 |
2 |
1.00 |
0.09 |
| 24 |
0 |
4 |
0.80 |
0.17 |
0 |
2 |
1.00 |
0.08 |
| 25 |
1 |
5 |
1.00 |
0.20 |
0 |
2 |
1.00 |
0.08 |