Table 1 Classifier Performance Results for Suicide Ideation (n = 500 instances).

From: Identifying Suicide Ideation and Suicidal Attempts in a Psychiatric Clinical Research Database using Natural Language Processing

Classifier

Gold Standard

True Event

Non-True Event

True Event

a = 265

c = 24

Non-True Event

b = 37

d = 174

Performance Results

Precision (PPV) (a/a + c)

91.7%

 

Recall (Sensitivity) (a/a + b)

87.8%

 
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