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Table 1 Mention level classification results

From: Moonstone: a novel natural language processing system for inferring social risk from clinical narratives

Variable TPa FPb FNc Send NPVe PPVf Accg F-scoreh
Housing Situation
Homeless/marginally housed 79 39 11 0.87 0.38 0.66 0.63 0.75
Lives at home/not homeless 6382 111 335 0.95 0.02 0.98 0.93 0.96
Lives in a facility 426 131 141 0.75 0.26 0.76 0.63 0.75
Living Alone
Does not live alone 1329 123 88 0.93 0.11 0.91 0.86 0.92
Lives alone 710 19 17 0.97 0.05 0.97 0.95 0.97
Social Support
Has social support 5174 525 337 0.93 0.21 0.90 0.85 0.92
No social support 220 59 19 0.92 0.78 0.78 0.78 0.84
  1. aTrue positive
  2. bFalse positive
  3. cFalse negative
  4. dSensitivity (i.e. recall)
  5. eNegative predictive value
  6. fPositive predictive value (i.e. precision)
  7. gAccuracy
  8. hF-score (harmonic mean of positive predictive value and sensitivity)