RELATED This method regarded an entity pair whose entities were semantically related to each other as a causality, because such relatedness has been shown to imply causality (Do et al., 2011;Riaz and Girju, 2010).
this method used a semantic relatedness defined as 1−sr(a, b), where sr(a, b) is a Wikipedia-link-based distance measure that was proposed by Milne and Witten (2008) and has been widely used (Lee et al., 2015).