The significance test results summarized in Table 4 are unambiguous: for many proto-role properties, ensembling helps to improve performance significantly (SPR1: 14 18 cases; SPR2: 7 14 cases; significance level: p < 0.05).
in addition, our model as a single model instance (Marker) is outperformed by RUD'18's approach both in the regression and in the multi-label setup.