Table 6.
Table 6 Comparison of Errors Assigning POS for Tagger Trained with Three Different Corpora
| Reference tag → Error | ME tagger trained with WSJ only | ME tagger trained with WSJ + DSC | ME tagger trained with WSJ + H1 selected Data |
|---|---|---|---|
| CC → RB | 3 | 3 | 3 |
| CD → JJ | 0 | 0 | 2 |
| CD → NN | 1 | 0 | 2 |
| CD → NNP | 21 | 0 | 0 |
| IN → NNP | 10 | 0 | 0 |
| IN → RB | 3 | 2 | 2 |
| JJ → NN | 77 | 49 | 56 |
| JJ → NNP | 271 | 4 | 7 |
| LS → NNP | 70 | 20 | 30 |
| NN → JJ | 23 | 28 | 47 |
| NN → NNP | 310 | 3 | 3 |
| NNP → JJ | 2 | 9 | 7 |
| NNS → NN | 89 | 13 | 8 |
| RB → JJ | 7 | 3 | 2 |
| VBD → VBN | 57 | 20 | 20 |
| VBN → NNP | 12 | 0 | 0 |
| VBN → VBD | 10 | 21 | 16 |
| VBZ → NNS | 14 | 3 | 3 |
CC = conjunction, coordinating; RB = adverb; CD = numeral, cardinal; JJ = adjective; NN = noun, singular or mass; NNP = noun, proper, singular; IN = preposition or conjunction, subordinating; LS = list item marker; NNS = noun, plural; VBD = verb, past tense; VBN = verb, past participle; VBG = verb, present participle or gerund.