{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,7]],"date-time":"2026-08-07T16:40:06Z","timestamp":1786120806015,"version":"build-2736575974"},"publisher-location":"New York, NY, USA","reference-count":35,"publisher":"ACM","license":[{"start":{"date-parts":[[2026,8,8]],"date-time":"2026-08-08T00:00:00Z","timestamp":1786147200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/legalcode"}],"funder":[{"name":"National Natural Science Foundation of China","award":["62502310"],"award-info":[{"award-number":["62502310"]}]},{"name":"National Natural Science Foundation of China","award":["62322603"],"award-info":[{"award-number":["62322603"]}]},{"name":"National Natural Science Foundation of China","award":["624B2096"],"award-info":[{"award-number":["624B2096"]}]}],"content-domain":{"domain":["dl.acm.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2026,8,9]]},"DOI":"10.1145\/3770855.3818386","type":"proceedings-article","created":{"date-parts":[[2026,8,6]],"date-time":"2026-08-06T17:15:47Z","timestamp":1786036547000},"page":"7854-7865","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["DynaTree: Dynamic Agentic Retrieval Tree for Time-Sensitive News Retrieval"],"prefix":"10.1145","author":[{"ORCID":"https:\/\/orcid.org\/0009-0009-3445-918X","authenticated-orcid":false,"given":"Siyuan","family":"Qi","sequence":"first","affiliation":[{"name":"Shanghai Jiao Tong University, Shanghai, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-4255-9749","authenticated-orcid":false,"given":"Xinyuan","family":"Wang","sequence":"additional","affiliation":[{"name":"Shanghai Jiao Tong University, Shanghai, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0494-7440","authenticated-orcid":false,"given":"Yingxuan","family":"Yang","sequence":"additional","affiliation":[{"name":"Shanghai Jiao Tong University, Shanghai, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-1390-1162","authenticated-orcid":false,"given":"Haochuan","family":"Guo","sequence":"additional","affiliation":[{"name":"Orion Arm AI, Singapore, Singapore"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8953-3203","authenticated-orcid":false,"given":"Jianghao","family":"Lin","sequence":"additional","affiliation":[{"name":"Shanghai Jiao Tong University, Shanghai, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9148-3997","authenticated-orcid":false,"given":"Weiwen","family":"Liu","sequence":"additional","affiliation":[{"name":"Shanghai Jiao Tong University, Shanghai, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4457-2820","authenticated-orcid":false,"given":"Yong","family":"Yu","sequence":"additional","affiliation":[{"name":"Shanghai Jiao Tong University, Shanghai, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0127-2425","authenticated-orcid":false,"given":"Weinan","family":"Zhang","sequence":"additional","affiliation":[{"name":"Shanghai Jiao Tong University, Shanghai, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"320","published-online":{"date-parts":[[2026,8,8]]},"reference":[{"key":"e_1_3_2_2_1_1","volume-title":"International Conference on Learning Representations","volume":"2024","author":"Asai Akari","year":"2024","unstructured":"Akari Asai, Zeqiu Wu, Yizhong Wang, Avi Sil, and Hannaneh Hajishirzi. 2024. Self-RAG: Learning to Retrieve, Generate, and Critique through Self-Reflection. In International Conference on Learning Representations, Vol. 2024. 9112-9141. https:\/\/proceedings.iclr.cc\/paper_files\/paper\/2024\/file\/25f7be9694d7b32d5cc670927b8091e1-Paper-Conference.pdf"},{"key":"e_1_3_2_2_2_1","doi-asserted-by":"publisher","DOI":"10.6028\/NIST.SP.500-308.tempsumm-overview"},{"key":"e_1_3_2_2_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ipm.2019.05.009"},{"key":"e_1_3_2_2_4_1","volume-title":"Proceedings of the 39th International Conference on Machine Learning (Proceedings of Machine Learning Research","volume":"2240","author":"Borgeaud Sebastian","year":"2022","unstructured":"Sebastian Borgeaud, Arthur Mensch, Jordan Hoffmann, Trevor Cai, Eliza Rutherford, Katie Millican, George Bm Van Den Driessche, Jean-Baptiste Lespiau, Bogdan Damoc, Aidan Clark, Diego De Las Casas, Aurelia Guy, Jacob Menick, Roman Ring, Tom Hennigan, Saffron Huang, Loren Maggiore, Chris Jones, Albin Cassirer, Andy Brock, Michela Paganini, Geoffrey Irving, Oriol Vinyals, Simon Osindero, Karen Simonyan, Jack Rae, Erich Elsen, and Laurent Sifre. 2022. Improving Language Models by Retrieving from Trillions of Tokens. In Proceedings of the 39th International Conference on Machine Learning (Proceedings of Machine Learning Research, Vol. 162). 2206-2240. https:\/\/proceedings.mlr.press\/v162\/borgeaud22a.html"},{"key":"e_1_3_2_2_5_1","doi-asserted-by":"publisher","DOI":"10.1145\/2071389.2071390"},{"key":"e_1_3_2_2_6_1","unstructured":"Gheorghe Comanici Eric Bieber Mike Schaekermann Ice Pasupat Noveen Sachdeva Inderjit Dhillon Marcel Blistein Ori Ram Dan Zhang Evan Rosen et al. 2025. Gemini 2.5: Pushing the frontier with advanced reasoning multimodality long context and next generation agentic capabilities. arXiv preprint arXiv:2507.06261 (2025). https:\/\/arxiv.org\/abs\/2507.06261"},{"key":"e_1_3_2_2_7_1","doi-asserted-by":"publisher","DOI":"10.1145\/1718487.1718490"},{"key":"e_1_3_2_2_8_1","doi-asserted-by":"publisher","DOI":"10.1145\/1772690.1772725"},{"key":"e_1_3_2_2_9_1","volume-title":"Robert Osazuwa Ness, and Jonathan Larson","author":"Edge Darren","year":"2025","unstructured":"Darren Edge, Ha Trinh, Newman Cheng, Joshua Bradley, Alex Chao, Apurva Mody, Steven Truitt, Dasha Metropolitansky, Robert Osazuwa Ness, and Jonathan Larson. 2025. From Local to Global: A Graph RAG Approach to Query-Focused Summarization. arXiv:2404.16130 [cs.CL] https:\/\/arxiv.org\/abs\/2404.16130"},{"key":"e_1_3_2_2_10_1","doi-asserted-by":"publisher","DOI":"10.1145\/1718487.1718489"},{"key":"e_1_3_2_2_11_1","volume-title":"Evaluating Stream Filtering for Entity Profile Updates for TREC 2013. In Proceedings of The Twenty-Second Text REtrieval Conference, TREC 2013","author":"Frank John R.","year":"2013","unstructured":"John R. Frank, Steven J. Bauer, Max Kleiman-Weiner, Daniel A. Roberts, Nilesh Tripuraneni, Ce Zhang, Christopher R\u00e9, Ellen M. Voorhees, and Ian Soboroff. 2013. Evaluating Stream Filtering for Entity Profile Updates for TREC 2013. In Proceedings of The Twenty-Second Text REtrieval Conference, TREC 2013, Gaithersburg, Maryland, USA, November 19-22, 2013 (NIST Special Publication). http:\/\/trec.nist.gov\/pubs\/trec22\/papers\/KBA.OVERVIEW.pdf"},{"key":"e_1_3_2_2_12_1","doi-asserted-by":"publisher","DOI":"10.18653\/v1\/2023.acl-long.99"},{"key":"e_1_3_2_2_13_1","unstructured":"Yunfan Gao Yun Xiong Xinyu Gao Kangxiang Jia Jinliu Pan Yuxi Bi Yi Dai Jiawei Sun Meng Wang and Haofen Wang. 2024. Retrieval-Augmented Generation for Large Language Models: A Survey. arXiv:2312.10997 [cs.CL] https:\/\/arxiv.org\/abs\/2312.10997"},{"key":"e_1_3_2_2_14_1","doi-asserted-by":"publisher","DOI":"10.18653\/v1\/2021.eacl-main.74"},{"key":"e_1_3_2_2_15_1","doi-asserted-by":"publisher","DOI":"10.1145\/2911451.2914805"},{"key":"e_1_3_2_2_16_1","doi-asserted-by":"publisher","DOI":"10.1145\/383952.383972"},{"key":"e_1_3_2_2_17_1","doi-asserted-by":"publisher","DOI":"10.5555\/3495724.3496517"},{"key":"e_1_3_2_2_18_1","unstructured":"Minghan Li Xinxuan Lv Junjie Zou Tongna Chen Chao Zhang Suchao An Ercong Nie and Guodong Zhou. 2026. Query Expansion in the Age of Pre-trained and Large Language Models: A Comprehensive Survey. arXiv:2509.07794 [cs.IR] https:\/\/arxiv.org\/abs\/2509.07794"},{"key":"e_1_3_2_2_19_1","doi-asserted-by":"publisher","DOI":"10.1145\/956863.956951"},{"key":"e_1_3_2_2_20_1","doi-asserted-by":"publisher","DOI":"10.18653\/v1\/2023.emnlp-main.322"},{"key":"e_1_3_2_2_21_1","unstructured":"Bhawna Piryani Abdelrahman Abdallah Jamshid Mozafari Avishek Anand and Adam Jatowt. 2026. It's High Time: A Survey of Temporal Question Answering. arXiv:2505.20243 [cs.CL] https:\/\/arxiv.org\/abs\/2505.20243"},{"key":"e_1_3_2_2_22_1","volume-title":"RAPTOR: Recursive Abstractive Processing for Tree-Organized Retrieval. In The Twelfth International Conference on Learning Representations, ICLR 2024","author":"Sarthi Parth","year":"2024","unstructured":"Parth Sarthi, Salman Abdullah, Aditi Tuli, Shubh Khanna, Anna Goldie, and Christopher D. Manning. 2024. RAPTOR: Recursive Abstractive Processing for Tree-Organized Retrieval. In The Twelfth International Conference on Learning Representations, ICLR 2024, Vienna, Austria, May 7-11, 2024. https:\/\/openreview.net\/forum?id=GN921JHCRw"},{"key":"e_1_3_2_2_23_1","doi-asserted-by":"publisher","DOI":"10.52202\/075280-0377"},{"key":"e_1_3_2_2_24_1","volume-title":"Tala Talaei Khoei, and Athanasios V. Vasilakos","author":"Singh Aditi","year":"2026","unstructured":"Aditi Singh, Abul Ehtesham, Saket Kumar, Tala Talaei Khoei, and Athanasios V. Vasilakos. 2026. Agentic Retrieval-Augmented Generation: A Survey on Agentic RAG. arXiv:2501.09136 [cs.AI] https:\/\/arxiv.org\/abs\/2501.09136"},{"key":"e_1_3_2_2_25_1","doi-asserted-by":"publisher","DOI":"10.18653\/v1\/2025.emnlp-main.1722"},{"key":"e_1_3_2_2_26_1","volume-title":"BEIR: A Heterogenous Benchmark for Zero-shot Evaluation of Information Retrieval Models. arXiv:2104.08663 [cs.IR] https:\/\/arxiv.org\/abs\/2104.08663","author":"Thakur Nandan","year":"2021","unstructured":"Nandan Thakur, Nils Reimers, Andreas R\u00fcckl\u00e9, Abhishek Srivastava, and Iryna Gurevych. 2021. BEIR: A Heterogenous Benchmark for Zero-shot Evaluation of Information Retrieval Models. arXiv:2104.08663 [cs.IR] https:\/\/arxiv.org\/abs\/2104.08663"},{"key":"e_1_3_2_2_27_1","doi-asserted-by":"publisher","DOI":"10.18653\/v1\/2024.findings-acl.813"},{"key":"e_1_3_2_2_28_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11704-024-40231-1"},{"key":"e_1_3_2_2_29_1","volume-title":"Proceedings of the 26th Annual Conference on Learning Theory (Proceedings of Machine Learning Research","volume":"54","author":"Wang Yining","year":"2013","unstructured":"Yining Wang, Liwei Wang, Yuanzhi Li, Di He, and Tie-Yan Liu. 2013. A Theoretical Analysis of NDCG Type Ranking Measures. In Proceedings of the 26th Annual Conference on Learning Theory (Proceedings of Machine Learning Research, Vol. 30). 25-54. https:\/\/proceedings.mlr.press\/v30\/Wang13.html"},{"key":"e_1_3_2_2_30_1","unstructured":"Yingxuan Yang Bo Huang Siyuan Qi Chao Feng Haoyi Hu Yuxuan Zhu Jinbo Hu Haoran Zhao Ziyi He Xiao Liu Muning Wen Zongyu Wang Lin Qiu Xuezhi Cao Xunliang Cai Yong Yu and Weinan Zhang. 2025. Understanding and Optimizing Agentic Workflows via Shapley value. arXiv:2502.00510 [cs.AI] https:\/\/arxiv.org\/abs\/2502.00510"},{"key":"e_1_3_2_2_31_1","unstructured":"Shunyu Yao Jeffrey Zhao Dian Yu Nan Du Izhak Shafran Karthik Narasimhan and Yuan Cao. 2023. ReAct: Synergizing Reasoning and Acting in Language Models. arXiv:2210.03629 [cs.CL] https:\/\/arxiv.org\/abs\/2210.03629"},{"key":"e_1_3_2_2_32_1","doi-asserted-by":"publisher","DOI":"10.18653\/v1\/2025.acl-long.1312"},{"key":"e_1_3_2_2_33_1","doi-asserted-by":"publisher","DOI":"10.5555\/3692070.3694642"},{"key":"e_1_3_2_2_34_1","doi-asserted-by":"publisher","DOI":"10.18653\/v1\/2025.naacl-long.449"},{"key":"e_1_3_2_2_35_1","doi-asserted-by":"publisher","DOI":"10.1145\/3748304"}],"event":{"name":"KDD '26: The 32nd ACM SIGKDD Conference on Knowledge Discovery and Data Mining","location":"Jeju Island Republic of Korea","sponsor":["SIGMOD ACM Special Interest Group on Management of Data","SIGKDD ACM Special Interest Group on Knowledge Discovery in Data"]},"container-title":["Proceedings of the 32nd ACM SIGKDD Conference on Knowledge Discovery and Data Mining V.2"],"original-title":[],"deposited":{"date-parts":[[2026,8,7]],"date-time":"2026-08-07T01:11:51Z","timestamp":1786065111000},"score":1,"resource":{"primary":{"URL":"https:\/\/dl.acm.org\/doi\/10.1145\/3770855.3818386"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,8,8]]},"references-count":35,"alternative-id":["10.1145\/3770855.3818386","10.1145\/3770855"],"URL":"https:\/\/doi.org\/10.1145\/3770855.3818386","relation":{},"subject":[],"published":{"date-parts":[[2026,8,8]]},"assertion":[{"value":"2026-08-08","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}