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Results for RegEx and (tf.idf) classifiers. weighting schemas. For the VS engine, tf.idf parameters are provided: the first triplet indicates the weighting applied to the "document collection", i.e. the concepts, while the second is for the "query collection", i.e. the abstracts.
| System or parameters | Top precision | Mean average precision |
| RegEx | 0.641 | 0.400 |
| tf.idf (VS) | ||
| lnc.atn | 0.696 | 0.35525 |
| anc.atn | 0.691 | 0.3545 |
| ltc.atn | 0.75 | 0.33525 |
| ltc.lnn | 0.637 | 0.2775 |
