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Table 7 The full confusion matrix for the ambiguous entity “alkyl” calculated for ChemSpot and tmChem over CEMP_T and CEMP_D corpora

From: Recognizing chemicals in patents: a comparative analysis

ChemSpot CEMP_T

Predicted “alkyl”

Predicted others

tmChem CEMP_T

Predicted “alkyl”

Predicted others

Actual

TP

FN

Actual

TP

FN

“Alkyl”

354

74

“Alkyl”

206

226

Actual

FP

TN

Actual

FP

TN

Others

260

599

Others

39

816

ChemSpot CEMP_D

Predicted “alkyl”

Predicted others

tmChem CEMP_D

Predicted “alkyl”

predicted others

Actual

TP

FN

Actual

TP

FN

“Alkyl”

372

59

“Alkyl”

187

246

Actual

FP

TN

Actual

FP

TN

Others

194

560

Others

37

715