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Table 2 Comparison of annotators trained and tested on CEMP and CHEMDNER corpora measured by precision (P), recall (R), f1-score (F1)

From: LSTMVoter: chemical named entity recognition using a conglomerate of sequence labeling tools

System

CEMP

CHEMDNER

 

P

R

F

P

R

F

Stanford NER

0.85

0.80

0.82

0.82

0.83

0.82

MarMoT

0.87

0.86

0.86

0.85

0.85

0.85

CRF++

0.77

0.73

0.73

0.74

0.71

0.73

MITIE

0.65

0.65

0.65

0.62

0.61

0.62

Glample

0.76

0.79

0.77

0.82

0.84

0.83

Majority vote

0.78

0.79

0.78

0.70

0.76

0.73

LSTMVoter

0.90

0.88

0.89

0.91

0.90

0.90

  1. Bold was intended to compare LSTMVoter to the best reference tool. Bold now shows the system with the highest F-Score, which is LSTMVoter