We evaluate the performances using precision (P), recall (R) and F1 scores following (Miwa and Bansal, 2016;.
an output entity (e, y) is correct if its type y and the region of its head e are correct, and an output relation r is correct if its (e 1 , y 1 , e 2 , y 2 , l) are correct ( i.e., exact match).