Papers › Natural Question Generation with Reinforcement Learning Based Graph-to-Sequence Model

Natural Question Generation with Reinforcement Learning Based Graph-to-Sequence Model

19 Oct 2019arXiv:1910.08832archive 2025-07-28

Yu Chen, Lingfei Wu, Mohammed J. Zaki

Natural question generation (QG) aims to generate questions from a passage and an answer. In this paper, we propose a novel reinforcement learning (RL) based graph-to-sequence (Graph2Seq) model for QG. Our model consists of a Graph2Seq generator where a novel Bidirectional Gated Graph Neural Network is proposed to embed the passage, and a hybrid evaluator with a mixed objective combining both cross-entropy and RL losses to ensure the generation of syntactically and semantically valid text. The proposed model outperforms previous state-of-the-art methods by a large margin on the SQuAD dataset.

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hugochan/RL-based-Graph2Seq-for-NQG officialmentioned in paperpytorchApache-2.0 report

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Graph Neural NetworkGraph-to-SequenceQuestion GenerationQuestion-GenerationReinforcement LearningReinforcement Learning (RL)reinforcement-learning

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Graph Neural Network

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