More closely related is work on language grounding, whose goal is the interpretation of a sentence in the context of a world representation (Branavan et al., 2009;Liang et al., 2009;Chen et al., 2010;Bordes et al., 2010;Feng and Lapata, 2010;Hajishirzi et al., 2011;Matuszek et al., 2012;Hajishirzi et al., 2012;Artzi and Zettlemoyer, 2013;Koncel-Kedziorski et al., 2014;Yatskar et al., 2014;Seo et al., 2014;Hixon et al., 2015).
while most previous work considered individual sentences in isolation, solving word problems often requires reasoning across the multi-sentence discourse of the problem text.