With the emergence of the trend of applying distributional hypothesis (Firth, 1957) to solve this relation classification task, researchers have started using Distributional Semantic Models (DSM) and have come up with several directional measures (Roller et al., 2014;Santus et al., 2016;Shwartz et al., 2017;Roller and Erk, 2016).
for hypernymy detection, researchers also used a variant of distributional hypothesis, i.e., distributional inclusion hypothesis (Geffet and Dagan, 2005) according to which the contexts of a narrow term are also shared by the broad term.