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Table 5 Performance by feature set, syntactic features.

From: Mining clinical relationships from patient narratives

Relation

Metric

+event

+dep

+syndist

has_finding

P

65

73

74

 

R

81

77

77

 

F1

72

71

74

has_indication

P

42

42

43

 

R

47

37

37

 

F1

42

38

39

has_location

P

72

74

73

 

R

81

86

86

 

F1

75

79

78

has_target

P

62

65

71

 

R

66

63

66

 

F1

63

62

64

laterality_modifies

P

84

89

89

 

R

88

84

90

 

F1

84

85

89

negation_modifies

P

79

85

85

 

R

93

97

93

 

F1

85

90

88

sub_location_modifies

P

88

90

93

 

R

95

95

95

 

F1

91

92

94

Overall

P

65

71

71

 

R

75

74

74

 

F1

69

72

72

  1. Variation in performance by feature set, syntactic features. The first column shows the cumulative +event system from Table 4. The next two columns show the effect of cumulatively adding syntactic features to this system. Syntactic features are as described in Table 3.