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Table 4 Evaluation of trigger words for the gene expression event.

From: Simple tricks for improving pattern-based information extraction from the biomedical literature

Trigger word

FP

TP

Occurrence

Hit rate

co-expression

0

2

3

0.7

coexpressed

0

4

6

0.7

nonexpressing

0

2

3

0.7

expressing

1

44

75

0.6

expressed

25

136

232

0.6

express

15

43

81

0.6

production

6

150

298

0.5

co-transfections

1

1

2

0.5

resynthesized

0

1

2

0.5

expression

106

873

1768

0.5

produce

2

16

33

0.5

expresses

0

4

9

0.4

produces

0

2

5

0.4

overexpression

53

27

80

0.4

  1. FP: number of cases where the trigger word is trigger of other event types. TP: number of cases where the trigger word is a gene expression trigger. Occurrences: Total number of occurrences in corpus. Hit rate: see definition in text in Results (Trigger Word Filter).
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Journal of Biomedical Semantics

ISSN: 2041-1480