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Table 5 Probability of a candidate entity conditioned on possible values of the indicator random variables for each of the three taggers used.

From: Chemical entity extraction using CRF and an ensemble of extractors

ChemxSeer

OSCAR4

ChemSpot

Probability Estimate on Dev

Probability Estimate on Train

1

0

0

0.252

0.26159

0

1

0

0.089

0.08507

0

0

1

0.249

0.25588

1

1

0

0.82083

0.81755

1

0

1

0.72799

0.67361

0

1

1

0.55869

0.53267

1

1

1

0.93316

0.93386