TimelineAgent: An LLM-based Framework for Query-Centric Event Timeline Extraction Across Multiple Documents

Qingkai Min, Yunxin Bao, Yifeng Lu, Zhenyu Feng, Yulong Chen, Andreas Vlachos, Yue Zhang


Abstract
Query-centric cross-document event timeline extraction aims to construct event timelines from multiple documents under diverse query focuses. The task is very challenging due to the heterogeneous event modeling and reasoning requirements arising from both the intrinsic complexity of cross-document timeline construction and the diversity of query focuses. In this paper, we propose TimelineAgent, an LLM-based multi-agent framework featuring a multi-stage reasoning workflow, where heterogeneous event features are organized into reusable skills and orchestrated through a goal-oriented protocol. To facilitate evaluation, we construct a benchmark covering diverse query focuses. Experimental results show that TimelineAgent consistently outperforms existing methods, offering a practical framework for complex real-world timeline construction.
Anthology ID:
2026.emnlp-main.2328
Volume:
Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing
Month:
October
Year:
2026
Address:
Budapest, Hungary
Editors:
Hung-Yi Lee, Sunipa Dev, Jessy Li, Desmond Elliott
Venue:
EMNLP
SIG:
SIGDAT
Publisher:
Association for Computational Linguistics
Note:
Pages:
52872–52896
Language:
URL:
https://aclanthology.org/2026.emnlp-main.2328/
DOI:
Bibkey:
Cite (ACL):
Qingkai Min, Yunxin Bao, Yifeng Lu, Zhenyu Feng, Yulong Chen, Andreas Vlachos, and Yue Zhang. 2026. TimelineAgent: An LLM-based Framework for Query-Centric Event Timeline Extraction Across Multiple Documents. In Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing, pages 52872–52896, Budapest, Hungary. Association for Computational Linguistics.
Cite (Informal):
TimelineAgent: An LLM-based Framework for Query-Centric Event Timeline Extraction Across Multiple Documents (Min et al., EMNLP 2026)
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PDF:
https://aclanthology.org/2026.emnlp-main.2328.pdf