Table 4
Recall and Precision for Ranking Algorithms at 10, 20, 50, 100, 500, and 1,000 Results (Averaged over 40 Queries per Algorithm)
| No. of Results | ||||||
| Algorithm | 10 | 20 | 50 | 100 | 500 | 1,000 |
| Citation count | ||||||
| Recall | 4.67% | 8.88% | 17.28% | 26.43% | 52.29% | 62.68% |
| Precision | 10.25% | 9.88% | 7.70% | 6.15% | 2.53% | 1.55% |
| Impact factor | ||||||
| Recall | 1.20% | 2.76% | 5.45% | 11.89% | 23.65% | 31.04% |
| Precision | 2.00% | 2.38% | 2.00% | 2.38% | 1.01% | 0.69% |
| PageRank | ||||||
| Recall | 7.77% | 13.01% | 19.89% | 26.29% | 37.30% | 40.94% |
| Precision | 16.00% | 14.50% | 9.25% | 6.25% | 1.88% | 1.02% |
| PubMed* | ||||||
| Recall | 0.00% | 0.00% | 0.00% | 0.93% | 9.50% | 17.40% |
| Precision | 0.00% | 0.00% | 0.00% | 0.15% | 0.36% | 0.35% |
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↵* Dates limited to the date range of the Society of Surgical Oncology.
