For each graph, we successively evaluate link prediction accuracy after retrofitting to links of other relation types.
for each relation type r 2 R, we retrofit to G \r = (V, E \r ) where E \r = {(i, j, r 0 ) : (i, j, r 0 ) 2 E, r 0 6 = r} is the set of edges with all relations of type r removed.