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Table 4 Performances of the Naïve Bayes versus the maximum entropy classifiers on the CTA/CTV and incidentaloma test sets

From: Natural language processing of radiology reports for the detection of thromboembolic diseases and clinically relevant incidental findings

   Precision Recall F-measure
Features   NB ME NB ME NB ME
Baseline (plain text) PE 0.78 0.88 0.96 0.95 0.86 0.91
DVT 0.42 0.84 0.89 0.89 0.57 0.86
PE and/or DVT 0.77 0.90 0.85 0.96 0.81 0.93
Incidentaloma 0.32 0.43 0.29 0.32 0.30 0.37
Baseline + annotations PE 0.99 1.00 0.97 0.95 0.98 0.98
DVT 0.73 1.00 0.89 1.00 0.80 1.00
PE and/or DVT 0.92 1.00 0.85 0.96 0.89 0.98
Incidentaloma 0.67 NC 0.50 NC 0.57 NC
Baseline + annotations + section typing Incidentaloma 0.46 NC 0.63 NC 0.53 NC
Critical sections* + annotations Incidentaloma 0.60 0.76 0.75 0.81 0.67 0.80
  1. NB: Naïve Bayes; ME: Maximum Entropy.
  2. PE: Pulmonary Embolism; DVT: Deep Vein Thrombosis.
  3. *results and conclusion sections.
  4. NC: Not Calculated.