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Table 3 Automated time expression normalization results on the First referral corpus, divided per time expression type

From: Temporal information extraction from mental health records to identify duration of untreated psychosis

BatchTypeIAA (matches)IAA (acc)System2 (TPs)System2 (acc)System2 (acc*)
devDate5720.844270.930.93
Time770.87650.510.88
Duration1370.821020.740.74
Frequency580.95520.920.92
Age_related690.81400.930.93
validDate8450.917050.850.85
Time1280.791000.270.64
Duration2090.771470.840.84
Frequency1230.981010.950.95
Age_related1240.81620.730.73
testDate5540.924820.820.82
Time1560.781160.090.78
Duration1920.721280.770.77
Frequency900.72480.830.83
Age_related1080.86540.800.80
  1. Automated time expression extraction results (normalized values) on the First referral corpus (dev, valid, test), divided per time expression type. Results are presented in terms of inter-annotator agreement (IAA), system raw accuracy (System2 acc) and system relaxed accuracy (System2 acc*), where expressions with type Time are evaluated only on the “Thh:mm” portion