1. Paraphrase Generation from Latent-Variable PCFGs for Semantic Parsing. (arXiv:1601.06068v1 [cs.CL])

    One of the limitations of semantic parsing approaches to open-domain question answering is the lexicosyntactic gap between natural language questions and knowledge base entries -- there are many ways to ask a question, all with the same answer. In this paper we propose to bridge this gap by generating paraphrases of the input question with the goal that at least one of them will be correctly mapped to a knowledge-base query.

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