Research Article
Study of Query Expansion Techniques and Their Application in the Biomedical Information Retrieval
Table 10
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 |
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