While these rich representations improve the performance on several tasks such as coreference and reading comprehension, they rely on explicit mentions of entities in text as available in toy datasets such as bAbi (Weston et al., 2015).
it is difficult to apply these representations in a dialogue setting due to the sparseness of name mentions in dialogue, as well as the lack of explicit conversation connections between characters (as available in movies) (Azab et al., 2018).