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Table 3 Medical entity extraction according to semantic types. Tr = T/N, type error rate; Br = B/N, boundary error rate; P = precision. All results are percentages.

From: Automatic extraction of semantic relations between medical entities: a rule based approach

 

MetaMap

LTS+MetaMap

 

Tr

Br

P

Tr

Br

P

Disease Or Syndrome

9.09

52.27

64.77

9.81

26.48

76.94

Injury or poisoning

33.33

34.84

49.24

26.19

35.71

55.95

Neoplastic Process

29.03

6.45

67.74

37.5

12.50

56.25

Anatomical Abnormality

85.71

0.00

14.28

40.00

0.00

60.00

Cell or Molecular Dysfunction

66.66

25.00

20.83

44.44

44.44

27.79

Total

30.08

30.52

54.62

12.23

27.10

74.21