Cited by 86Topic ModelingInformation Retrieval and Search BehaviorMultimodal Machine Learning Applications

MemoRAG: Boosting Long Context Processing with Global Memory-Enhanced Retrieval Augmentation

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Qian, Hongjin, Liu, Zheng, Zhang, Peitian, Mao, Kelong, Lian, Defu, Dou, Zhicheng, Huang, Tiejun·2025·Proceedings of the ACM on Web Conference 2025

Abstract

Processing long contexts presents a significant challenge for large language models (LLMs). While recent advancements allow LLMs to handle much longer contexts than before (e.g., 32K or 128K tokens), it is computationally expensive and can still be insufficient for many applications. Retrieval-Augmented Generation (RAG) is considered a promising strategy to address this problem. However, conventional RAG methods face inherent limitations because of two underlying requirements: 1) explicitly stated queries, and 2) well-structured knowledge. These conditions, however, do not hold in general long-context processing tasks.

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Research works printed but not linked: 44

  1. Ralph Adolphs. 1999. Social cognition and the human brain. Trends in cognitive sciences 3, 12 (1999), 469-479.
  2. Zheng Cai, Maosong Cao, Haojiong Chen, Kai Chen, Keyu Chen, Xin Chen, Xun Chen, Zehui Chen, Zhi Chen, Pei Chu, Xiaoyi Dong, Haodong Duan, Qi Fan, Zhaoye Fei, Yang Gao, Jiaye Ge, Chenya Gu, Yuzhe Gu, Tao Gui, Aijia Guo, Qipeng Guo, Conghui He, Yingfan Hu, Ting Huang, Tao Jiang, Penglong Jiao, Zhenjiang Jin, Zhikai Lei, Jiaxing Li, Jingwen Li, Linyang Li, Shuaibin Li, Wei Li, Yining Li, Hongwei Liu, Jiangning Liu, Jiawei Hong, Kaiwen Liu, Kuikun Liu, Xiaoran Liu, Chengqi Lv, Haijun Lv, Kai Lv, Li Ma, Runyuan Ma, Zerun Ma, Wenchang Ning, Linke Ouyang, Jiantao Qiu, Yuan Qu, Fukai Shang, Yunfan Shao, Demin Song, Zifan Song, Zhihao Sui, Peng Sun, Yu Sun, Huanze Tang, Bin Wang, Guoteng Wang, Jiaqi Wang, Jiayu Wang, Rui Wang, Yudong Wang, Ziyi Wang, Xingjian Wei, Qizhen Weng, Fan Wu, Yingtong Xiong, and et al. 2024. InternLM2 Technical Report. CoRR abs/2403.17297 (2024). https://doi.org/10.48550/ARXIV.2403.17297 arXiv:2403.17297 · DOI · Paper page
  3. Chi-Min Chan, Chunpu Xu, Ruibin Yuan, Hongyin Luo, Wei Xue, Yike Guo, and Jie Fu. 2024. RQ-RAG: Learning to Refine Queries for Retrieval Augmented Generation. CoRR abs/2404.00610 (2024). https://doi.org/10.48550/ARXIV.2404. 00610 arXiv:2404.00610 · DOI
  4. Jianlv Chen, Shitao Xiao, Peitian Zhang, Kun Luo, Defu Lian, and Zheng Liu. 2023. BGE M3-Embedding: Multi-Lingual, Multi-Functionality, Multi-Granularity Text Embeddings Through Self-Knowledge Distillation. arXiv:2309.07597 [cs.CL] · arXiv
  5. Pradeep Dasigi, Kyle Lo, Iz Beltagy, Arman Cohan, Noah A Smith, and Matt Gard- ner. 2021. A Dataset of Information-Seeking Questions and Answers Anchored in Research Papers. In Proceedings of the 2021 Conference of the North Ameri- can Chapter of the Association for Computational Linguistics: Human Language Technologies. 4599-4610.
  6. DeepSeek-AI. 2024. DeepSeek-V2: A Strong, Economical, and Efficient Mixture- of-Experts Language Model. arXiv:2405.04434 [cs.CL] · arXiv
  7. Zican Dong, Tianyi Tang, Lunyi Li, and Wayne Xin Zhao. 2023. A survey on long text modeling with transformers. arXiv preprint arXiv:2302.14502 (2023). · arXiv
  8. Darren Edge, Ha Trinh, Newman Cheng, Joshua Bradley, Alex Chao, Apurva Mody, Steven Truitt, and Jonathan Larson. 2024. From Local to Global: A Graph RAG Approach to Query-Focused Summarization. arXiv:2404.16130 [cs.CL] https://arxiv.org/abs/2404.16130 · arXiv
  9. Alexander R. Fabbri, Irene Li, Tianwei She, Suyi Li, and Dragomir R. Radev. 2019. Multi-News: A Large-Scale Multi-Document Summarization Dataset and Abstractive Hierarchical Model. In Proceedings of the 57th Conference of the Association for Computational Linguistics, ACL 2019, Florence, Italy, July 28-August 2, 2019, Volume 1: Long Papers, Anna Korhonen, David R. Traum, and Lluís Màrquez (Eds.). Association for Computational Linguistics, 1074-1084. https: //doi.org/10.18653/V1/P19-1102 · DOI · Paper page
  10. Yunfan Gao, Yun Xiong, Xinyu Gao, Kangxiang Jia, Jinliu Pan, Yuxi Bi, Yi Dai, Jiawei Sun, Qianyu Guo, Meng Wang, and Haofen Wang. 2024. Retrieval-Augmented Generation for Large Language Models: A Survey. arXiv:2312.10997 [cs.CL] · arXiv
  11. Team GLM, Aohan Zeng, Bin Xu, Bowen Wang, Chenhui Zhang, Da Yin, Diego Rojas, Guanyu Feng, Hanlin Zhao, Hanyu Lai, Hao Yu, Hongning Wang, Jiadai Sun, Jiajie Zhang, Jiale Cheng, Jiayi Gui, Jie Tang, Jing Zhang, Juanzi Li, Lei Zhao, Lindong Wu, Lucen Zhong, Mingdao Liu, Minlie Huang, Peng Zhang, Qinkai Zheng, Rui Lu, Shuaiqi Duan, Shudan Zhang, Shulin Cao, Shuxun Yang, Weng Lam Tam, Wenyi Zhao, Xiao Liu, Xiao Xia, Xiaohan Zhang, Xiaotao Gu, Xin Lv, Xinghan Liu, Xinyi Liu, Xinyue Yang, Xixuan Song, Xunkai Zhang, Yifan An, Yifan Xu, Yilin Niu, Yuantao Yang, Yueyan Li, Yushi Bai, Yuxiao Dong, Zehan Qi, Zhaoyu Wang, Zhen Yang, Zhengxiao Du, Zhenyu Hou, and Zihan Wang. 2024. ChatGLM: A Family of Large Language Models from GLM-130B to GLM-4 All Tools. arXiv:2406.12793 · arXiv
  12. Bernal Jiménez Gutiérrez, Yiheng Shu, Yu Gu, Michihiro Yasunaga, and Yu Su. 2024. HippoRAG: Neurobiologically Inspired Long-Term Memory for Large Language Models. arXiv:2405.14831 [cs.CL] https://arxiv.org/abs/2405.14831 · arXiv
  13. Xanh Ho, Anh-Khoa Duong Nguyen, Saku Sugawara, and Akiko Aizawa. 2020. Constructing A Multi-hop QA Dataset for Comprehensive Evaluation of Reason- ing Steps. In Proceedings of the 28th International Conference on Computational Linguistics, Donia Scott, Nuria Bel, and Chengqing Zong (Eds.). International Committee on Computational Linguistics, Barcelona, Spain (Online), 6609-6625. https://doi.org/10.18653/v1/2020.coling-main.580 · DOI · Paper page
  14. Luyang Huang, Shuyang Cao, Nikolaus Parulian, Heng Ji, and Lu Wang. 2021. Efficient Attentions for Long Document Summarization. In Proceedings of the 2021 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, Kristina Toutanova, Anna Rumshisky, Luke Zettlemoyer, Dilek Hakkani-Tur, Iz Beltagy, Steven Bethard, Ryan Cotterell, Tanmoy Chakraborty, and Yichao Zhou (Eds.). Association for Computational Linguistics, Online, 1419-1436. https://doi.org/10.18653/v1/2021.naacl-main.112 · DOI · Paper page
  15. Gautier Izacard and Edouard Grave. 2021. Distilling Knowledge from Reader to Retriever for Question Answering. In International Conference on Learning Representations.
  16. Gautier Izacard and Édouard Grave. 2021. Leveraging Passage Retrieval with Generative Models for Open Domain Question Answering. In Proceedings of the 16th Conference of the European Chapter of the Association for Computational Linguistics: Main Volume. 874-880.
  17. Albert Q Jiang, Alexandre Sablayrolles, Arthur Mensch, Chris Bamford, De- vendra Singh Chaplot, Diego de las Casas, Florian Bressand, Gianna Lengyel, Guillaume Lample, Lucile Saulnier, et al. 2023. Mistral 7B. arXiv preprint arXiv:2310.06825 (2023). · arXiv
  18. Huiqiang Jiang, Yucheng Li, Chengruidong Zhang, Qianhui Wu, Xufang Luo, Surin Ahn, Zhenhua Han, Amir H Abdi, Dongsheng Li, Chin-Yew Lin, Yuqing Yang, and Lili Qiu. 2024. MInference 1.0: Accelerating Pre-filling for Long-Context LLMs via Dynamic Sparse Attention. arXiv preprint arXiv:2407.02490 (2024). · arXiv
  19. Zhengbao Jiang, Frank F. Xu, Luyu Gao, Zhiqing Sun, Qian Liu, Jane Dwivedi- Yu, Yiming Yang, Jamie Callan, and Graham Neubig. 2023. Active Retrieval Augmented Generation. In Proceedings of the 2023 Conference on Empirical Meth- ods in Natural Language Processing, EMNLP 2023, Singapore, December 6-10, 2023,
  20. Hongye Jin, Xiaotian Han, Jingfeng Yang, Zhimeng Jiang, Zirui Liu, Chia-Yuan Chang, Huiyuan Chen, and Xia Hu. 2024. LLM Maybe LongLM: Self-Extend LLM Context Window Without Tuning. arXiv:2401.01325 [cs.CL] https://arxiv.org/ abs/2401.01325 · arXiv
  21. Kuang-Huei Lee, Xinyun Chen, Hiroki Furuta, John F. Canny, and Ian Fischer. 2024. A Human-Inspired Reading Agent with Gist Memory of Very Long Contexts. In Forty-first International Conference on Machine Learning, ICML 2024, Vienna, Austria, July 21-27, 2024. OpenReview.net. https://openreview.net/forum?id= OTmcsyEO5G
  22. Patrick Lewis, Ethan Perez, Aleksandra Piktus, Fabio Petroni, Vladimir Karpukhin, Naman Goyal, Heinrich Küttler, Mike Lewis, Wen-tau Yih, Tim Rocktäschel, Sebastian Riedel, and Douwe Kiela. 2020. Retrieval-Augmented Generation for Knowledge-Intensive NLP Tasks. In Advances in Neural Information Processing Systems, Vol. 33. 9459-9474. https://proceedings.neurips.cc/paper_files/paper/ 2020/file/6b493230205f780e1bc26945df7481e5-Paper.pdf
  23. Dacheng Li, Rulin Shao, Anze Xie, Ying Sheng, Lianmin Zheng, Joseph Gonzalez, Ion Stoica, Xuezhe Ma, and Hao Zhang. 2023. How Long Can Context Length of Open-Source LLMs truly Promise?. In NeurIPS 2023 Workshop on Instruction Tuning and Instruction Following.
  24. Xiaoyong Liu and W Bruce Croft. 2005. Statistical language modeling for infor- mation retrieval. Annu. Rev. Inf. Sci. Technol. 39, 1 (2005), 1-31.
  25. Kelong Mao, Zhicheng Dou, Fengran Mo, Jiewen Hou, Haonan Chen, and Hongjin Qian. 2023. Large Language Models Know Your Contextual Search Intent: A Prompting Framework for Conversational Search. arXiv:2303.06573 [cs.IR] https://arxiv.org/abs/2303.06573 · arXiv
  26. Kelong Mao, Zheng Liu, Hongjin Qian, Fengran Mo, Chenlong Deng, and Zhicheng Dou. 2024. RAG-Studio: Towards In-Domain Adaptation of Retrieval Augmented Generation Through Self-Alignment. In Findings of the Association for Computational Linguistics: EMNLP 2024, Miami, Florida, USA, November 12-16, 2024, Yaser Al-Onaizan, Mohit Bansal, and Yun-Nung Chen (Eds.). Association for Computational Linguistics, 725-735. https://aclanthology.org/2024.findings- emnlp.41
  27. Fengran Mo, Kelong Mao, Ziliang Zhao, Hongjin Qian, Haonan Chen, Yiruo Cheng, Xiaoxi Li, Yutao Zhu, Zhicheng Dou, and Jian-Yun Nie. 2024. A Survey of Conversational Search. arXiv:2410.15576 [cs.CL] https://arxiv.org/abs/2410.15576 · arXiv
  28. Tri Nguyen, Mir Rosenberg, Xia Song, Jianfeng Gao, Saurabh Tiwary, Rangan Majumder, and Li Deng. 2016. MS MARCO: A Human Generated MAchine Reading COmprehension Dataset. In Proceedings of the Workshop on Cogni- tive Computation: Integrating neural and symbolic approaches 2016 co-located with the 30th Annual Conference on Neural Information Processing Systems (NIPS 2016), Barcelona, Spain, December 9, 2016 (CEUR Workshop Proceedings, Vol. 1773),
  29. Tarek Richard Besold, Antoine Bordes, Artur S. d'Avila Garcez, and Greg Wayne (Eds.). CEUR-WS.org. https://ceur-ws.org/Vol-1773/CoCoNIPS_2016_paper9.pdf
  30. Hongjin Qian, Zheng Liu, Kelong Mao, Yujia Zhou, and Zhicheng Dou. 2024. Grounding Language Model with Chunking-Free In-Context Retrieval. In Proceed- ings of the 62nd Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers), ACL 2024, Bangkok, Thailand, August 11-16, 2024, Lun-Wei Ku, Andre Martins, and Vivek Srikumar (Eds.). Association for Computational Linguistics, 1298-1311. https://doi.org/10.18653/V1/2024.ACL-LONG.71 · DOI
  31. Hongjin Qian, Zheng Liu, Peitian Zhang, Kelong Mao, Yujia Zhou, Xu Chen, and Zhicheng Dou. 2024. Are Long-LLMs A Necessity For Long-Context Tasks? arXiv:2405.15318 [cs.CL] https://arxiv.org/abs/2405.15318 · arXiv
  32. Hongjing Qian, Yutao Zhu, Zhicheng Dou, Haoqi Gu, Xinyu Zhang, Zheng Liu, Ruofei Lai, Zhao Cao, Jian-Yun Nie, and Ji-Rong Wen. 2023. WebBrain: Learning to Generate Factually Correct Articles for Queries by Grounding on Large Web Corpus. arXiv:2304.04358 [cs.CL] · arXiv
  33. Nir Ratner, Yoav Levine, Yonatan Belinkov, Ori Ram, Inbal Magar, Omri Abend, Ehud Karpas, Amnon Shashua, Kevin Leyton-Brown, and Yoav Shoham. 2022. Parallel Context Windows Improve In-Context Learning of Large Language Models. arXiv (2022). https://doi.org/10.48550/arxiv.2212.10947 arXiv:2212.10947 Window. · DOI
  34. Kurt Shuster, Spencer Poff, Moya Chen, Douwe Kiela, and Jason Weston. 2021. Retrieval Augmentation Reduces Hallucination in Conversation. In Findings of the Association for Computational Linguistics: EMNLP 2021, Virtual Event / Punta Cana, Dominican Republic, 16-20 November, 2021, Marie-Francine Moens, Xuanjing Huang, Lucia Specia, and Scott Wen-tau Yih (Eds.). Association for Computational Linguistics, 3784-3803. https://doi.org/10.18653/V1/2021.FINDINGS-EMNLP.320 · DOI · Paper page
  35. Saba Sturua, Isabelle Mohr, Mohammad Kalim Akram, Michael Günther, Bo Wang, Markus Krimmel, Feng Wang, Georgios Mastrapas, Andreas Koukounas, Nan Wang, and Han Xiao. 2024. jina-embeddings-v3: Multilingual Embeddings With Task LoRA. arXiv:2409.10173 [cs.CL] https://arxiv.org/abs/2409.10173 · arXiv
  36. Hugo Touvron, Louis Martin, Kevin Stone, Peter Albert, Amjad Almahairi, Yas- mine Babaei, Nikolay Bashlykov, Soumya Batra, Prajjwal Bhargava, Shruti Bhos- ale, et al. 2023. Llama 2: Open foundation and fine-tuned chat models. arXiv preprint arXiv:2307.09288 (2023). · arXiv
  37. Peng Xu, Wei Ping, Xianchao Wu, Lawrence McAfee, Chen Zhu, Zihan Liu, Sandeep Subramanian, Evelina Bakhturina, Mohammad Shoeybi, and Bryan Catanzaro. 2023. Retrieval meets Long Context Large Language Models. arXiv (2023). https://doi.org/10.48550/arxiv.2310.03025 arXiv:2310.03025 Experimental. · DOI · Paper page
  38. An Yang, Baosong Yang, Binyuan Hui, Bo Zheng, Bowen Yu, Chang Zhou, Cheng- peng Li, Chengyuan Li, Dayiheng Liu, Fei Huang, et al. 2024. Qwen2 technical report. arXiv preprint arXiv:2407.10671 (2024). · arXiv
  39. Zhilin Yang, Peng Qi, Saizheng Zhang, Yoshua Bengio, William W. Cohen, Ruslan Salakhutdinov, and Christopher D. Manning. 2018. HotpotQA: A Dataset for Diverse, Explainable Multi-hop Question Answering. In Proceedings of the 2018 Conference on Empirical Methods in Natural Language Processing, Brussels, Belgium, October 31 -November 4, 2018, Ellen Riloff, David Chiang, Julia Hockenmaier, and Jun'ichi Tsujii (Eds.). Association for Computational Linguistics, 2369-2380. https://doi.org/10.18653/V1/D18-1259 · DOI · Paper page
  40. Peitian Zhang, Zheng Liu, Shitao Xiao, Ninglu Shao, Qiwei Ye, and Zhicheng Dou. 2024. Soaring from 4K to 400K: Extending LLM's Context with Activation Beacon. arXiv preprint arXiv:2401.03462 (2024). · arXiv
  41. Peitian Zhang, Ninglu Shao, Zheng Liu, Shitao Xiao, Hongjin Qian, Qi- wei Ye, and Zhicheng Dou. 2024. Extending Llama-3's Context Ten-Fold Overnight. CoRR abs/2404.19553 (2024). https://doi.org/10.48550/ARXIV.2404. 19553 arXiv:2404.19553 · DOI
  42. Xinrong Zhang, Yingfa Chen, Shengding Hu, Zihang Xu, Junhao Chen, Moo Khai Hao, Xu Han, Zhen Leng Thai, Shuo Wang, Zhiyuan Liu, and Maosong Sun. 2024. ınftyBench: Extending Long Context Evaluation Beyond 100K Tokens. In Proceedings of the 62nd Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers), ACL 2024, Bangkok, Thailand, August 11-16, 2024, Lun-Wei Ku, Andre Martins, and Vivek Srikumar (Eds.). Association for Computational Linguistics, 15262-15277. https://doi.org/10.18653/V1/2024.ACL- LONG.814 · DOI · Paper page
  43. Yujia Zhou, Yan Liu, Xiaoxi Li, Jiajie Jin, Hongjin Qian, Zheng Liu, Chaozhuo Li, Zhicheng Dou, Tsung-Yi Ho, and Philip S. Yu. 2024. Trustworthiness in Retrieval-Augmented Generation Systems: A Survey. CoRR abs/2409.10102 (2024). https://doi.org/10.48550/ARXIV.2409.10102 arXiv:2409.10102 · DOI
  44. Yutao Zhu, Huaying Yuan, Shuting Wang, Jiongnan Liu, Wenhan Liu, Chenlong Deng, Haonan Chen, Zhicheng Dou, and Ji-Rong Wen. 2024. Large Language Models for Information Retrieval: A Survey. arXiv:2308.07107 [cs.CL] https: //arxiv.org/abs/2308.07107 Dataset Num max( | C | ) min( | C | ) ave( | C | ) ave( | Q | ) ave( | A | ) Technology 240 306,073 44,549 144029.7 14.4 40.2 Biology 220 257,644 39,218 125284.9 16.8 49.1 Religion 220 1,071,342 34,257 131424.8 17.4 54.2 Fiction 220 564,980 44,057 137689.7 16.2 43.6 Psychology 200 571,725 37,988 150119.5 16.7 46.5 Music 200 381,043 51,517 168672.9 17.5 49.7 Art 200 305,001 32,793 128961.2 17.8 52.2 Philosophy 200 678,553 38,729 135682.7 17.2 51.0 Health 180 289,258 50,600 135902.0 16.2 48.2 History 180 688,074 53,277 195265.0 17.9 51.0 Literature 180 534,836 33,043 129363.7 16.9 47.0 Biography 180 408,969 45,052 163522.3 18.0 52.0 Politics 180 387,157 49,853 139624.3 17.9 54.9 Mathematics 160 726,144 60,936 197924.6 16.7 47.6 Physics 160 226,811 36,717 105805.6 14.8 54.2 Cooking 120 466,885 58,360 156139.2 16.5 46.6 Agriculture 100 385,915 76,581 150969.6 15.6 45.9 Computer 100 437,070 51,704 215929.5 14.3 39.8 Total 3,240 1,071,342 32,793 150684.0 16.6 48.5 · arXiv

Cited by

Sorted by citations

Authors
Qian, H., Liu, Z., Zhang, P., Mao, K., Lian, D., Dou, Z., & Huang, T.
Affiliations
  • Peking University (CN)
  • Hong Kong Polytechnic University (HK)
  • Renmin University of China (CN)
  • University of Science and Technology of China (CN)
Venue
Proceedings of the ACM on Web Conference 2025
Publisher
ACM
Published
2025-04-22
Pages
2366-2377
OpenAlex
W4410089611
Cited by
86
References
16
Citations by year
2026: 54 · 2025: 31 · 2024: 1
FWCI
59.71
Type
conference paper
Language
en
Open access
Locations
  • International World Wide Web Conference (WWW) (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Funders
  • National Natural Science Foundation of China (L233008, 62272467)
  • Ministry of Education, India
Topics
  • Physical Sciences › Computer Science › Artificial Intelligence › Topic Modeling
  • Physical Sciences › Computer Science › Information Systems › Information Retrieval and Search Behavior
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Multimodal Machine Learning Applications
Keywords
retrieval-augmented generation, long-context modeling, global memory, large language models

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