We evaluate the local interpretability of VMASKbased models against the base models via the AOPC score (Nguyen, 2018;Samek et al., 2016) and the global interpretability against the IBAbased models via post-hoc accuracy (Chen et al., 2018).
in each iteration, the first term in Equation 9 is approximated with a single sample from q(R|x (i) ) (Kingma and Welling, 2014).