“…MLPs have also been used (Srinivasan, Truong-Huu, and Gurusamy, 2019;Rafique et al, 2018;Feng et al, 2018). There are also CNN-based approaches (Wang et al, 2018b;Ji et al, 2018;Xiao et al, 2019), some of which, as we have seen in Section 2.6.1, force data into grid-like structures and therefore are questionable with respect to the structural assumptions implicit in a CNN (Wang et al, 2018b;Xiao et al, 2019).…”