“…In general, external knowledge has shown to be effective in neural networks for other NLP tasks, including word embedding (Chen et al, 2015;Faruqui et al, 2015;Liu et al, 2015;Wieting et al, 2015;Mrksic et al, 2017), machine translation (Shi et al, 2016;Zhang et al, 2017b), language modeling (Ahn et al, 2016), and dialogue systems .…”