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Table 3 Performance of the CRF-based concept extraction system, compared to the dictionary-based baseline on 100 news articles

From: Discovering opinion leaders for medical topics using news articles

  True Positives False Negatives False Positives Recall Precision F-measure
Machine learning system
Exact Match 54 9 5 85.7 91.5 88.5
Partial Match 55 8 4 87.3 93.2 90.1
Dictionary Baseline
Exact Match 45 18 254 71.4 15.0 24.9
Partial Match 58 5 241 92.1 19.4 32.0