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Table 4 Parameter optimization results

From: Active learning for ontological event extraction incorporating named entity recognition and unknown word handling

Calculation method

N-gram

 

N=1

N=2

N=3

N=4

N=5

N=1−2

Chi-square

0.507

0.413

0.159

0.036

0.009

0.436

Relative ratio

0.341

0.395

0.307

0.128

0.038

0.361

Odds

0.420

0.395

0.274

0.117

0.035

0.407

  1. The averaged concept prediction accuracy is reported. The best accuracy is highlighted in boldface
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Journal of Biomedical Semantics

ISSN: 2041-1480