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Table 8 Number of unique true positives found by each system in the ensemble system.

From: Recognition of chemical entities: combining dictionary-based and grammar-based approaches

Entity type Regex LeadMine CHEBI HMDB
Trivial 8 1655 888 711
Systematic 0 3945 198 136
Family 0 2643 79 325
Formula 0 613 1866 110
Abbreviation 39 515 1093 596
Multiple 0 11 2 0
Identifier 229 98 13 0
Total 280 9480 4139 1878