Table 4 Performances of automatic direct temporal relation identification systems
From: Identifying direct temporal relations between time and events from clinical notes
System | P | R | F1 |
|---|---|---|---|
SVM-based system | 63.93 | 63.62 | 63.77 |
Original Vanderbilt system (submission to 2012 i2b2 challenge) | 43.53 | 76.99 | 55.61 |
Re-trained Vanderbilt system (re-impremented, re-trained on direct temporal relation corpus) | 64.16 | 49.15 | 55.66 |
Syntactic graph kernel based system | 64.46 | 54.27 | 58.92 |
CRF-based system | 48.51 | 39.52 | 43.56 |