Question: What are previous state of the art results?
Answer: Overall F1 score:
- He and Sun (2017) 58.23
- Peng and Dredze (2017) 58.99
- Xu et al. (2018) 59.11
Alternative answer: For Named entity the maximum precision was 66.67%, and the average 62.58%, same values for Recall was 55.97% and 50.33%, and for F1 57.14% and 55.64%. Where for Nominal Mention had maximum recall of 74.48% and average of 73.67%, Recall had values of 54.55% and 53.7%,  and F1 had values of  62.97% and 62.12%. Finally the Overall F1 score had maximum value of 59.11% and average of 58.77%