Taking an answer and its context as input, sequence-to-sequence models have
made considerable progress on question generation. However, we observe that
these approaches often generate wrong question words or keywords and copy
answer-irrelevant words from the input. We believe that lacking global question
semantics and exploiting answer position-awareness not well are the key root
causes. In this paper, we propose a neural question generation model with two
concrete modules: sentence-level semantic matching and answer position
inferring. Further, we enhance the initial state of the decoder by leveraging
the answer-aware gated fusion mechanism. Experimental results demonstrate that
our model outperforms the state-of-the-art (SOTA) models on SQuAD and MARCO
datasets. Owing to its generality, our work also improves the existing models
significantly.

本文提出了一个能够改进问题生成中的关键词生成和全局问题语义缺失问题的神经问题生成模型，并且利用了句子级别的语义匹配和答案位置推断功能，并运用了基于答案感知的门控融合机制来增强解码器的初始状态，结果表明我们的模型在 SQuAD 和 MARCO 数据集上领先于现有的最先进模型，同时还对现有模型进行了显著改进。