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| Model | MAP | NDCG | P@20 | NDCG@20 | P@100 | NDCG@100 | Notes |
|---|---|---|---|---|---|---|---|
| Dir (Krovetz) | 0.2944+ | 0.5443+ | 0.5905+ | 0.5150 | 0.4033 | 0.4601Sweep mu, krovetz-stemmed queries | + means significant improvement of Dir (unstemmed) |
| RM3 (krovetz)Sweep mu, fbDocs, fbTerms, and lambda with krovetz-stemmed index | |||||||
| Pubmed (Krovetz) | 0.3285+ | 0.6008+ | 0.5667 | 0.4821 | 0.4333+ | 0.4627Krovetz-stemmed queries. | + means improvement of Dir (krovetz) |