Table 8. Evaluation of trained CRF model on external validation data.
| POS tag | Correct prediction | Incorrect prediction | Total | Accuracy |
|---|---|---|---|---|
| NN | 325 | 5 | 330 | 98.5 |
| PSP | 202 | 202 | 100 | |
| VBF | 104 | 2 | 106 | 98.1 |
| PU | 62 | 62 | 100 | |
| PRP | 61 | 4 | 65 | 93.8 |
| JJ | 57 | 7 | 64 | 89.1 |
| AUXT | 49 | 1 | 50 | 98.0 |
| PDM | 36 | 1 | 37 | 97.3 |
| NNP | 33 | 2 | 35 | 94.3 |
| CC | 30 | 30 | 100 | |
| SC | 26 | 1 | 27 | 96.3 |
| VBI | 26 | 3 | 29 | 89.7 |
| AUXA | 18 | 18 | 100 | |
| NEG | 16 | 16 | 100 | |
| PRR | 14 | 14 | 100 | |
| Q | 11 | 11 | 100 | |
| AUXP | 10 | 10 | 100 | |
| CD | 10 | 10 | 100 | |
| RB | 9 | 9 | 100 | |
| SCK | 9 | 9 | 100 | |
| PRF | 5 | 5 | 100 | |
| OD | 5 | 1 | 6 | 83.3 |
| VALA | 5 | 5 | 100 | |
| PRD | 4 | 4 | 100 | |
| PRS | 3 | 3 | 100 | |
| APNA | 2 | 2 | 100 | |
| SCP | 1 | 1 | 100 | |
| AUXM | 1 | 1 | 100 | |
| Total | 1,134 | 27 | 1,161 | 97.7 |