Table 8

Performance over extracted entities.

Relation

Metric

gold standard entities

extracted entities


has_finding

P

63

62

R

82

32

F1

71

41


has_indication

P

44

44

R

47

27

F1

41

32


has_location

P

73

68

R

83

49

F1

76

55


has_target

P

59

47

R

68

39

F1

62

41


laterality_modifies

P

86

83

R

89

76

F1

85

74


negation_modifies

P

81

81

R

93

53

F1

85

60


sub_location_modifies

P

87

71

R

95

24

F1

90

31


Overall

P

64

63

R

76

40

F1

70

48


Performance of relation extraction over automatically extracted entities, compared to relation extraction using perfect gold standard entities. For relation extraction, the cumulative feature set +event of Table 4 was used.

Roberts et al. BMC Bioinformatics 2008 9(Suppl 11):S3   doi:10.1186/1471-2105-9-S11-S3

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