Publications

2024

• Unifying Multimodal Retrieval via Document Screenshot Embedding
  Xueguang Ma, Sheng-Chieh Lin, Minghan Li, Wenhu Chen, Jimmy Lin
  Conference on Empirical Methods in Natural Language Processing (EMNLP), 2024 (upcoming).
  [Paper]

• Nearest Neighbor Speculative Decoding for LLM Generation and Attribution
  Minghan Li, Xilun Chen, Ari Holtzman, Beidi Chen, Jimmy Lin, Wen-tau Yih, Xi Victoria Lin
  The 38th Annual Conference on Neural Information Processing Systems (NeurIPS), 2024 (upcoming).
  [Paper]

• Can Query Expansion Improve Generalization of Strong Cross-Encoder Rankers?
  Minghan Li, Honglei Zhuang, Kai Hui, Zhen Qin, Jimmy Lin, Rolf Jagerman, Xuanhui Wang, Michael Bendersky
  The 47th International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR), 2024.
  [Paper]

• CELI: Simple yet Effective Approach to Enhance Out-of-Domain Generalization of Cross-Encoders
  Xinyu Zhang*, Minghan Li*, Jimmy Lin
  North American Chapter of the Association for Computational Linguistics (NAACL), 2024.
  [Paper]

2023

• How to Train Your DRAGON: Diverse Augmentation Towards Generalizable Dense Retrieval
  Sheng-Chieh Lin, Akari Asai, Minghan Li, Barlas Oguz, Jimmy Lin, Yashar Mehdad, Wen-tau Yih, Xilun Chen
  Conference on Empirical Methods in Natural Language Processing (EMNLP), 2023.
  [Paper] / [Code]

• CITADEL: Conditional Token Interaction via Dynamic Lexical Routing for Efficient and Effective Multi-Vector Retrieval
  Minghan Li*, Sheng-Chieh Lin, Barlas Oguz, Asish Ghoshal, Jimmy Lin, Yashar Mehdad, Wen-tau Yih, Xilun Chen*
  Association for Computational Linguistics (ACL), 2023.
  [Paper] / [Code]

• SLIM: Sparsified Late Interaction for Multi-Vector Retrieval with Inverted Indexes
  Minghan Li, Sheng-Chieh Lin, Xueguang Ma, Jimmy Lin
  International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR), 2023.
  [Paper] / [Code]

• Aggretriever: A Simple Approach to Aggregate Textual Representation for Robust Dense Passage Retrieval
  Sheng-Chieh Lin, Minghan Li, Jimmy Lin
  Transactions of the Association for Computational Linguistics (TACL), 2023.
  [Paper] / [Code]

2022

• Certified Error Control of Candidate Set Pruning for Two-Stage Relevance Ranking
  Minghan Li*, Xinyu Zhang*, Ji Xin, Hongyang Zhang, Jimmy Lin
  Conference on Empirical Methods in Natural Language Processing (EMNLP), 2022.
  [Paper] / [Code]

• An Encoder Attribution Analysis for Dense Passage Retriever in Open-Domain Question Answering
  Minghan Li, Xueguang Ma, Jimmy Lin
  The 2nd Workshop on Trustworthy Natural Language Processing (NAACL), 2022.
  [Paper]

2021

• Simple and Effective Unsupervised Redundancy Elimination to Compress Dense Vectors for Passage Retrieval
  Xueguang Ma*, Minghan Li*, Kai Sun, Ji Xin, Jimmy Lin
  Conference on Empirical Methods in Natural Language Processing (EMNLP), 2021.
  [Paper] / [Code]

• Multi-Task Dense Retrieval via Model Uncertainty Fusion for Open-Domain Question Answering
  Minghan Li*, Ming Li, Kun Xiong, Jimmy Lin
  Conference on Empirical Methods in Natural Language Processing (EMNLP), 2021.
  [Paper] / [Code]

• Another Look at DPR: Reproduction of Training and Replication of Retrieval
  Xueguang Ma, Kai Sun, Ronak Pradeep, Minghan Li, Jimmy Lin
  Conference on European Conference on Information Retrieval (ECIR), 2022.
  [Paper] / [Code]