LAGr: Label Aligned Graphs for Better Systematic Generalization in Semantic Parsing. (arXiv:2205.09607v1 [cs.CL])

Semantic parsing is the task of producing structured meaning representations
for natural language sentences. Recent research has pointed out that the
commonly-used sequence-to-sequence (seq2seq) semantic parsers struggle to
generalize systematically, i.e. to handle examples that require recombining
known knowledge in novel settings. In this work, we show that better systematic
generalization can be achieved by producing the meaning representation directly
as a graph and not as a sequence. To this end we propose LAGr (Label Aligned
Graphs), a general framework …

arxiv graphs parsing semantic