Relevance evaluation To compute the weight of a edge,<cite> Zhang et al. (2014)</cite> evaluate the semantic relatedness between two nodes with a search engine-based method. They first convert every node, which is a triple of SPO, into a query by combining the text of Subject and Object together. Then for every pair of nodes t i and t j , they construct three queries: p, q, and p ∩ q, which correspond to the queries of t i , t j , and t j ∩ t j , the combination of t i and t j . All these queries are put into a search engine to get H(p), H(q), and H(p ∩ q), the numbers of returned pages for query p, p, and p ∩ q. Then the WebJaccard Coefficient (Bollegala et al., 2007 ) is used to evaluate r(i, j), the relatedness between t i and t j , according to Formula 1. otherwise.