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Question Rewriting for Conversational Question Answering

arXiv 2004.14652 ↗First posted 30 Apr 2020cs.IR cs.LGcited by 93

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Abstract (arXiv)

Conversational question answering (QA) requires the ability to correctly interpret a question in the context of previous conversation turns. We address the conversational QA task by decomposing it into question rewriting and question answering subtasks. The question rewriting (QR) subtask is specifically designed to reformulate ambiguous questions, which depend on the conversational context, into unambiguous questions that can be correctly interpreted outside of the conversational context. We introduce a conversational QA architecture that sets the new state of the art on the TREC CAsT 2019 passage retrieval dataset. Moreover, we show that the same QR model improves QA performance on the QuAC dataset with respect to answer span extraction, which is the next step in QA after passage retrieval. Our evaluation results indicate that the QR model we proposed achieves near human-level performance on both datasets and the gap in performance on the end-to-end conversational QA task is attributed mostly to the errors in QA.

Key facts. Cited by 93 papers in the map (data through 7 Oct 2026). First posted on arXiv 30 Apr 2020.

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Citing papers per year: 2021: 11; 2022: 18; 2023: 22; 2024: 23; 2025: 15; 2026: 4.

93 papers.

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  1. 2021TopiOCQA: Open-domain Conversational Question Answering with Topic Switchingcited by 95
  2. 2024ChatQA: Surpassing GPT-4 on Conversational QA and RAGcited by 90
  3. 2023Enhancing Conversational Search: Large Language Model-Aided Informative Query Rewritingcited by 69
  4. 2021CONQRR: Conversational Query Rewriting for Retrieval with Reinforcement Learningcited by 68
  5. 2023ConvGQR: Generative Query Reformulation for Conversational Searchcited by 59
  6. 2022PACIFIC: Towards Proactive Conversational Question Answering over Tabular and Textual Data in Financecited by 45
  7. 2023Self-Polish: Enhance Reasoning in Large Language Models via Problem Refinementcited by 43
  8. 2021Guiding the Growth: Difficulty-Controllable Question Generation through Step-by-Step Rewritingcited by 30
  9. 2024CHIQ: Contextual History Enhancement for Improving Query Rewriting in Conversational Searchcited by 29
  10. 2021Learn to Resolve Conversational Dependency: A Consistency Training Framework for Conversational Question Answeringcited by 27
  11. 2022Conversational Question Answering on Heterogeneous Sourcescited by 26
  12. 2023Learning to Relate to Previous Turns in Conversational Searchcited by 26
38 more
  1. 2022Evaluating Mixed-initiative Conversational Search Systems via User Simulationcited by 24
  2. 2023Personalized Large Language Model Assistant with Evolving Conditional Memorycited by 24
  3. 2024Boosting Conversational Question Answering with Fine-Grained Retrieval-Augmentation and Self-Checkcited by 24
  4. 2024Ask Optimal Questions: Aligning Large Language Models with Retriever's Preference in Conversationcited by 23
  5. 2024A Survey of Conversational Searchcited by 22
  6. 2022Reinforced Question Rewriting for Conversational Question Answeringcited by 19
  7. 2021Reinforcement Learning from Reformulations in Conversational Question Answering over Knowledge Graphscited by 18
  8. 2022Saving Dense Retriever from Shortcut Dependency in Conversational Searchcited by 18
  9. 2021A Comparison of Question Rewriting Methods for Conversational Passage Retrievalcited by 16
  10. 2022Question rewriting? Assessing its importance for conversational question answeringcited by 15
  11. 2023Expand, Rerank, and Retrieve: Query Reranking for Open-Domain Question Answeringcited by 15
  12. 2024Adaptive Query Rewriting: Aligning Rewriters through Marginal Probability of Conversational Answerscited by 15
  13. 2024AdaCQR: Enhancing Query Reformulation for Conversational Search via Sparse and Dense Retrieval Alignmentcited by 14
  14. 2022On the Robustness of Dialogue History Representation in Conversational Question Answering: A Comprehensive Study and a New Prompt-based Methodcited by 12
  15. 2021Context Transformer with Stacked Pointer Networks for Conversational Question Answering over Knowledge Graphscited by 10
  16. 2022Q-TOD: A Query-driven Task-oriented Dialogue Systemcited by 10
  17. 2024How to Leverage Personal Textual Knowledge for Personalized Conversational Information Retrievalcited by 10
  18. 2024Aligning Query Representation with Rewritten Query and Relevance Judgments in Conversational Searchcited by 10
  19. 2025Wizard of Shopping: Target-Oriented E-commerce Dialogue Generation with Decision Tree Branchingcited by 10
  20. 2023Talk the Walk: Synthetic Data Generation for Conversational Music Recommendationcited by 9
  21. 2022Can Question Rewriting Help Conversational Question Answering?cited by 8
  22. 2024ConvSDG: Session Data Generation for Conversational Searchcited by 8
  23. 2024CORAL: Benchmarking Multi-turn Conversational Retrieval-Augmentation Generationcited by 8
  24. 2021A Graph-guided Multi-round Retrieval Method for Conversational Open-domain Question Answeringcited by 7
  25. 2022Interactive Question Answering Systems: Literature Reviewcited by 7
  26. 2023Query Understanding in the Age of Large Language Modelscited by 7
  27. 2023Robust Training for Conversational Question Answering Models with Reinforced Reformulation Generationcited by 7
  28. 2022McQueen: a Benchmark for Multimodal Conversational Query Rewritecited by 6
  29. 2023Beyond Single Items: Exploring User Preferences in Item Sets with the Conversational Playlist Curation Datasetcited by 6
  30. 2025Disambiguation in Conversational Question Answering in the Era of LLMs and Agents: A Surveycited by 6
  31. 2022From Rewriting to Remembering: Common Ground for Conversational QA Modelscited by 5
  32. 2023PCoQA: Persian Conversational Question Answering Datasetcited by 5
  33. 2024TIGQA:An Expert Annotated Question Answering Dataset in Tigrinyacited by 5
  34. 2022SCAI-QReCC Shared Task on Conversational Question Answeringcited by 4
  35. 2023Learning to Select the Relevant History Turns in Conversational Question Answeringcited by 4
  36. 2023Conversational Question Answering with Reformulations over Knowledge Graphcited by 4
  37. 2024History-Aware Conversational Dense Retrievalcited by 4
  38. 2025Query Understanding in LLM-based Conversational Information Seekingcited by 4

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