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arXiv · 2102.02864

ChainCQG: Flow-Aware Conversational Question Generation

Jing Gu·Mostafa Mirshekari·Zhou Yu·Aaron Sisto
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Abstract

Conversational systems enable numerous valuable applications, and question-answering is an important component underlying many of these. However, conversational question-answering remains challenging due to the lack of realistic, domain-specific training data. Inspired by this bottleneck, we focus on conversational question generation as a means to generate synthetic conversations for training and evaluation purposes. We present a number of novel strategies to improve conversational flow and accommodate varying question types and overall fluidity. Specifically, we design ChainCQG as a two-stage architecture that learns question-answer representations across multiple dialogue turns using a flow propagation training strategy.ChainCQG significantly outperforms both answer-aware and answer-unaware SOTA baselines (e.g., up to 48% BLEU-1 improvement). Additionally, our model is able to generate different types of questions, with improved fluidity and coreference alignment.

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Jing Gu, Mostafa Mirshekari, Zhou Yu, Aaron Sisto. 2021-02-04. ChainCQG: Flow-Aware Conversational Question Generation. https://arxiv.org/abs/2102.02864

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