Table 1 Mean Reciprocal Rank for 1,000 queries (focused search evaluation) measured for 13 search methods.
Mean Average Rank | Mean Reciprocal Rank | Search Method | Stemmer | Twease Slider Position |
|---|---|---|---|---|
2.028 | 0.493 | BM25ec | Porter | 0 |
2.054 | 0.487 | BM25ec | Paice-Husk | 0 |
1.787 | 0.560 | BM25ec | None | 0 |
1.750 | 0.571 | BM25ec | None | 20 |
1.724 | 0.580 | BM25ec | None | 40 |
1.732 | 0.577 | BM25ec | None | 60 |
1.732 | 0.577 | BM25ec | None | 80 |
1.728 | 0.579 | BM25ec | None | 100 |
1.737 | 0.576 | BM25ec | None | 120 |
1.752 | 0.571 | BM25ec | None | 140 |
1.755 | 0.570 | BM25ec | None | 160 |
1.760 | 0.568 | BM25ec | None | 180 |
1.767 | 0.566 | BM25ec | None | 200 |