We use Ancestor F 1 as our evaluation metric (Kozareva and Hovy, 2010;Navigli et al., 2011;Bansal et al., 2014).
we measure F 1 = 2P R/(P + R) values of predicted "is-a" relations where the precision (P) and recall (R) are: We compare our method to two previously state-of-the-art models by Fu et al.