Skip to main content

Table 6 The characteristic value of labels according to IOB model

From: Text normalization for named entity recognition in Vietnamese tweets

Label

Value

Meaning

O

[1]

Outside a named entity

B-PER

[2]

Beginning morphosyllable of a NE belongs to a Person class

I-PER

[3]

Inside morphosyllable of a NE belongs to Person class

B-LOC

[4]

Beginning morphosyllable of a NE belongs to Location class

I-LOC

[5]

Inside morphosyllable of a NE belongs to Location class

B-ORG

[6]

Beginning morphosyllable of a NE belongs to Organization class

I-ORG

[7]

Inside morphosyllable of a NE belongs to Organization class