Beyond Sentential Semantic Parsing: Tackling the Math SAT with a Cascade of Tree Transducers

EMNLP 2017 Mark HopkinsCristian Petrescu-PrahovaRoie LevinRonan Le BrasAlvaro HerrastiVidur Joshi

We present an approach for answering questions that span multiple sentences and exhibit sophisticated cross-sentence anaphoric phenomena, evaluating on a rich source of such questions {--} the math portion of the Scholastic Aptitude Test (SAT). By using a tree transducer cascade as its basic architecture, our system propagates uncertainty from multiple sources (e.g. coreference resolution or verb interpretation) until it can be confidently resolved... (read more)

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