Skip to main content

Table 2 Annotation statistics

From: Precursor-induced conditional random fields: connecting separate entities by induction for improved clinical named entity recognition

a) i2b2 2012

Set

Problem

Test

Treatment

Train

4,962

2,558

3,719

Test

4,270

2,140

3,213

b) SNUH

Set

Symptom

Test

Disease

Medication

Procedure

Train

3,923

4,559

5,084

3,642

1,175

Test

3,737

3,917

4,828

3,496

1,147

c) CoNLL 2003

Set

Location

Person

Organization

Miscellaneous

Train

7,140

6,600

6,321

3,438

Test

1,656

1,617

1,662

694

Back to article page

BMC Medical Informatics and Decision Making

ISSN: 1472-6947

Contact us