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arXiv · 2508.12282

A Question Answering Dataset for Temporal-Sensitive Retrieval-Augmented Generation

Ziyang Chen·Erxue Min·Xiang Zhao·Yunxin Li·Xin Jia·Jinzhi Liao·Jichao Li·Shuaiqiang Wang·Baotian Hu·Dawei Yin
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Abstract

We introduce ChronoQA, a large-scale benchmark dataset for Chinese question answering, specifically designed to evaluate temporal reasoning in Retrieval-Augmented Generation (RAG) systems. ChronoQA is constructed from over 300,000 news articles published between 2019 and 2024, and contains 5,176 high-quality questions covering absolute, aggregate, and relative temporal types with both explicit and implicit time expressions. The dataset supports both single- and multi-document scenarios, reflecting the real-world requirements for temporal alignment and logical consistency. ChronoQA features comprehensive structural annotations and has undergone multi-stage validation, including rule-based, LLM-based, and human evaluation, to ensure data quality. By providing a dynamic, reliable, and scalable resource, ChronoQA enables structured evaluation across a wide range of temporal tasks, and serves as a robust benchmark for advancing time-sensitive retrieval-augmented question answering systems.

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Ziyang Chen, Erxue Min, Xiang Zhao, Yunxin Li, Xin Jia, Jinzhi Liao, Jichao Li, Shuaiqiang Wang, Baotian Hu, Dawei Yin. 2025-08-17. A Question Answering Dataset for Temporal-Sensitive Retrieval-Augmented Generation. https://arxiv.org/abs/2508.12282

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