Table 2 Grammar features. N: numerical; B: boolean
From: Learning adaptive representations for entity recognition in the biomedical domain
Feature | Type |
|---|---|
num characters | N |
is all uppercase | B |
is all lowercase | B |
contains Greeek letters | B |
num dashes | N |
num numbers | N |
ends with a digit | B |
contains capital letters | B |
num lowercase characters | N |
num uppercase characters | N |
num spaces | N |
num symbols | N |