Their biggest limitation is that they rely heavily on cross-domain mapping of information such as functional similarities, e.g., (Vandevenne et al., 2012; Vandevenne et al., 2016; Shu and Cheong, 2010; Cheong and Shu, 2014;Rugaber et al., 2016; Zhao et al., 2018).
automatically identifying crossdomain relational similarities, requires substantial reasoning beyond what is currently computationally feasible.