Table 4

Performance for single extensions

Orig

UMLS

Δ

xMG

Δ

Brill

Δ

GT

Δ


All, first linkage

74.2

75.4

4.7

76.0

7.0

75.4

4.7

76.8

10.1

All, best linkage

82.7

83.5

4.6

84.5

10.4

83.7

5.8

85.3

15.0

NT, first linkage

78.0

78.1

0.5

78.9

4.1

78.0

0.0

79.4

6.4

NT, best linkage

87.4

86.9

-4.0

88.0

4.8

86.7

-5.6

88.3

7.1

p

N/A

p ≈ 0.06

p < 0.01

p ≈ 0.07

p < 0.01


First linkage denotes the linkage ordered first by the parser heuristics and best linkage the best performance achieved by any linkage returned by the parser. Results marked NT are for the subset of sentences where no timeouts occurred for any of the modifications. Δ columns give relative decrease in error with respect to the original LGP, and p values are for "All, first linkage" performance.

Pyysalo et al. BMC Bioinformatics 2006 7(Suppl 3):S2   doi:10.1186/1471-2105-7-S3-S2

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