Open-Domain Question Answering Goes Conversational via Question Rewriting

By R. Anantha, Svitlana Vakulenko, Zhucheng Tu, Shayne Longpre, Stephen G. Pulman, Srinivas Chappidi. 2020

230 citations recorded by the source corpus.

We introduce a new dataset for Question Rewriting in Conversational Context (QReCC), which contains 14K conversations with 80K question-answer pairs. The task in QReCC is to find answers to conversational questions within a collection of 10M web pages (split into 54M passages). Answers to questions in the same conversation may be distributed across several web pages. QReCC provides annotations that allow us to train and evaluate individual subtasks of question rewriting, passage retrieval and reading comprehension required for the end-to-end conversational question answering (QA) task. We report the effectiveness of a strong baseline approach that combines the state-of-the-art model for question rewriting, and competitive models for open-domain QA. Our results set the first baseline for the QReCC dataset with F1 of 19.10, compared to the human upper bound of 75.45, indicating the difficulty of the setup and a large room for improvement.

Subfields: Artificial Intelligence, Computer Vision and Pattern Recognition, Natural Language Processing

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In Artificial Intelligence

  1. Luke S. Zettlemoyer
  2. Mohit Bansal
  3. Percy Liang
  4. Hannaneh Hajishirzi
  5. Quoc V. Le
  6. Jianfeng Gao
  7. Graham Neubig
  8. Yejin Choi

In Computer Vision and Pattern Recognition

  1. Mohit Bansal
  2. Luc Van Gool
  3. Quoc V. Le
  4. Dacheng Tao
  5. Trevor Darrell
  6. Hannaneh Hajishirzi
  7. Xiaogang Wang
  8. Ming-Hsuan Yang

In Natural Language Processing

  1. Mohit Bansal
  2. Luke S. Zettlemoyer
  3. Percy Liang
  4. Hannaneh Hajishirzi
  5. Yejin Choi
  6. Sebastian Riedel
  7. Graham Neubig
  8. Christopher D. Manning

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