Table 5.
Post-hoc analysis of variance (ANOVA) of the named entity recognition models: P values of two-tailed paired t tests for each pair of models.a
| Named entity recognition | PWEb, P value | PWE+CEc, P value | PWE+SFEd, P value |
| RIWEe | <.001 | <.001 | <.001 |
| PWE | N/Af | .94 | .99 |
| PWE+CE | N/A | N/A | .95 |
aRIWE is significantly worse than the rest of the models. At the same time, there is no statistically significant difference between PWE, PWE+CE, and PWE+SFE.
bPWE: pretrained word embeddings.
cCE: character embedding.
dSFE: semantic-feature embeddings.
eRIWE: randomly initialized word embeddings.
fN/A: not applicable.