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Evaluation measures using query expansion with descriptors, applied in MeSH, Title, and Abstract fields.
| Combinations | Measures | |
|---|---|---|
| MAP | R-prec | |
| Porter stemmer-NLM stopwords | 0.3538 | 0.3791 |
| Porter stemmer-SMART stopwords | 0.3489 | 0.3766 |
| Krovetz stemmer-NLM stopwords | 0.3465 | 0.3750 |
| Krovetz stemmer-SMART stopwords | 0.3424 | 0.3732 |
