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Table 4 The CEM category results on the CHEMDNER test set.

From: Enhancing of chemical compound and drug name recognition using representative tag scheme and fine-grained tokenization

  IOBES IOBESf IOBEf IOB IOBf
  P R F P R F P R F P R F P R F
Abbr. 84.1 56.7 67.8 87.5 59.6 70.9 87.5 59.2 70.6 82,9 47.1 60.1 87.2 59.1 70.5
Fam. 82.5 64.6 72.4 85.1 70.0 76.8 85.0 69.3 76.2 82.5 63.5 71.8 84.3 68.9 75.8
Form. 79.0 62.9 70.0 83.1 69.0 75.4 83.0 68.8 75.2 74.4 58.3 65.4 83.0 68.4 75.0
Ident. 91.2 46.4 61.5 94.0 70.8 80.8 93.9 69.6 80.0 93.6 70.8 80.6 94.7 70.2 80.6
Mult. 46.3 38.2 41.9 77.0 38.7 51.5 83.0 39.2 53.2 78.8 31.7 45.2 75.6 34.2 47.1
Sys. 82.4 61.2 70.2 85.2 81.3 83.2 85.4 80.1 82.6 78.7 70.2 74.2 85.2 79.9 82.5
Tri. 86.4 78.6 82.3 89.9 81.5 85.5 89.1 81.2 85.0 85.6 73.0 78.8 89.0 81.2 84.9
All 76.8 66.0 71.0 82.7 73.9 78.1 82.5 73.4 77.6 77.9 64.4 70.5 82.3 73.2 77.5