tokens: Also shown in Table is performance of the model on DDI test sets , which is comparable with recently - reported SOTA performance on DDI detection in the DDI-2013 dataset using BioBERT ( F1 = 0.87).(Peng et al report SOTA performance on the DDI-2013 dataset treating the task as multi - class classification with four classes , achieving 0.79 micro - F1 using a tuned BERT - large model .