Yu-An Liu

2026

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Robust Neural Information Retrieval: An Adversarial and Out-of-Distribution Perspective.
Yu-An Liu|Ruqing Zhang|Jiafeng Guo|Maarten de Rijke|Yixing Fan|Xueqi Cheng
ACM Transactions on Information Systems (TOIS) 2026 Volume 44 Issue 1
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Is a Busy Search Agent a Good One? Overthinking and Overretrieval at Scale.
Xueqi Cheng|Karl Gyllstrom|Takahide Hoshide|Xin Liu|Xin Liu|Takahide Hoshide|Ruqing Zhang|Kaiqi Zhao|Yu-An Liu|Ko Fujimura|Ruqing Zhang|Kaiqi Zhao|Lixin Su|Jiafeng Guo|Xueqi Cheng|Karl Gyllstrom
Proceedings of the 49th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2026, MelbourneVICAustralia, July 20-24, 2026
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AdversarialCoT: Single-Document Retrieval Poisoning for LLM Reasoning.
Xiaozhong Liu|Ruqing Zhang|Ander Barrena|Hongru Song|Zhi Tang|Yu-An Liu|Yingnan Xiao|Ander Barrena|Ruqing Zhang|Xiaozhong Liu|Jiafeng Guo|Nevenka Dimitrova|Zhi Tang|Jiafeng Guo|Nevenka Dimitrova|Hongru Song|Maarten de Rijke|Yu-An Liu|Yingnan Xiao|Ander Barrena|Ruqing Zhang|Xiaozhong Liu|Yixing Fan|Xueqi Cheng
Proceedings of the 49th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2026, MelbourneVICAustralia, July 20-24, 2026
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Déjà Vu of Strange Stickers! Enhancing Out-of-Distribution Robustness in Sticker Retrieval via Cross-Modal Intent Alignment.
Yu-An Liu|Ruqing Zhang|Jiafeng Guo|Changjiang Zhou|Fan Zhang|Yinhu Zhao
Proceedings of the ACM Web Conference 2026, WWW 2026, Dubai, United Arab Emirates, originally scheduled for April 13-17, 2026, rescheduled for June 29 - July 3, 2026.

2025

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On the Robustness of Generative Information Retrieval Models: An Out-of-Distribution Perspective.
Yu-An Liu|Ruqing Zhang|Jiafeng Guo|Changjiang Zhou|Maarten de Rijke|Xueqi Cheng
Advances in Information Retrieval - 47th European Conference on Information Retrieval, ECIR 2025, Lucca, Italy, April 6-10, 2025, Proceedings, Part II
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On the Scaling of Robustness and Effectiveness in Dense Retrieval.
Yu-An Liu|Ruqing Zhang|Jiafeng Guo|Maarten de Rijke|Yixing Fan|Xueqi Cheng
Proceedings of the 48th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2025, Padua, Italy, July 13-18, 2025
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Robust-IR @ SIGIR 2025: The First Workshop on Robust Information Retrieval.
Yu-An Liu|Haya Nachimovsky|Ruqing Zhang|Oren Kurland|Jiafeng Guo|Moshe Tennenholtz
Proceedings of the 48th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2025, Padua, Italy, July 13-18, 2025
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Robust Information Retrieval.
Yu-An Liu|Ruqing Zhang|Jiafeng Guo|Maarten de Rijke
Proceedings of the Eighteenth ACM International Conference on Web Search and Data Mining, WSDM 2025, Hannover, Germany, March 10-14, 2025

2024

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Robust Information Retrieval.
Yu-An Liu|Ruqing Zhang|Jiafeng Guo|Maarten de Rijke
Proceedings of the 47th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2024, Washington DC, USA, July 14-18, 2024
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Multi-granular Adversarial Attacks against Black-box Neural Ranking Models.
Yu-An Liu|Ruqing Zhang|Jiafeng Guo|Maarten de Rijke|Yixing Fan|Xueqi Cheng
Proceedings of the 47th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2024, Washington DC, USA, July 14-18, 2024

2023

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Black-box Adversarial Attacks against Dense Retrieval Models: A Multi-view Contrastive Learning Method.
Yu-An Liu|Ruqing Zhang|Jiafeng Guo|Maarten de Rijke|Wei Chen|Yixing Fan|Xueqi Cheng
Proceedings of the 32nd ACM International Conference on Information and Knowledge Management, CIKM 2023, Birmingham, United Kingdom, October 21-25, 2023
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Topic-oriented Adversarial Attacks against Black-box Neural Ranking Models.
Yu-An Liu|Ruqing Zhang|Jiafeng Guo|Maarten de Rijke|Wei Chen|Yixing Fan|Xueqi Cheng
Proceedings of the 46th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2023, Taipei, Taiwan, July 23-27, 2023