A Multichannel Biomedical Named Entity Recognition Model Based on Multitask Learning and Contextualized Word Representations

Table 6

Performance comparison of different optimization methods.

	Precision	Recall	F1-score
JNLPBA
SGD	64.9	73.7	68.9
AdaGrad	72.0	75.0	73.4
Adam	72.6	79.6	76.0
NCBI-disease
SGD	77.5	79.8	78.6
AdaGrad	85.4	86.5	85.9
Adam	88.2	89.2	88.7