东北大学信息检索实验室 Northeastern University Information Retrieval Lab

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Conference

A*-Thought: Efficient Reasoning via Bidirectional Compression for Low-Resource Settings

A*-Thought: Efficient Reasoning via Bidirectional Compression for Low-Resource Settings

Xiaoang Xu, Shuo Wang, Xu Han, Zhenghao Liu, Huijia Wu, Peipei Li, Zhiyuan Liu, Maosong Sun, Zhaofeng He

Proceedings of NeurIPS · 2025 · CCF-A

ParamMute: Suppressing Knowledge-Critical FFNs for Faithful Retrieval-Augmented Generation

ParamMute: Suppressing Knowledge-Critical FFNs for Faithful Retrieval-Augmented Generation

Pengcheng Huang, Zhenghao Liu, , Yukun Yan, Haiyan Zhao, Xiaoyuan Yi, Hao Chen, Zhiyuan Liu, Maosong Sun, Tong Xiao, Ge Yu, Chenyan Xiong

Proceedings of NeurIPS · 2025 · CCF-A

Advancing llm reasoning generalists with preference trees

Advancing llm reasoning generalists with preference trees

Lifan Yuan, Ganqu Cui, Hanbin Wang, Ning Ding, Xingyao Wang, Jia Deng, Boji Shan, Huimin Chen, Ruobing Xie, Yankai Lin, Zhenghao Liu, Bowen Zhou, Hao Peng, Zhiyuan Liu, Maosong Sun

Proceedings of ICLR · 2025 · CCF-Expanded

VisRAG: Vision-based retrieval-augmented generation on multi-modality documents

VisRAG: Vision-based retrieval-augmented generation on multi-modality documents

Shi Yu, Chaoyue Tang, Bokai Xu, Junbo Cui, Junhao Ran, Yukun Yan, Zhenghao Liu, Shuo Wang, Xu Han, Zhiyuan Liu, Maosong Sun

Proceedings of ICLR · 2025 · CCF-Expanded

RAG-DDR: Optimizing Retrieval-Augmented Generation Using Differentiable Data Rewards

RAG-DDR: Optimizing Retrieval-Augmented Generation Using Differentiable Data Rewards

Xinze Li, Sen Mei, Zhenghao Liu, Yukun Yan, Shuo Wang, Shi Yu, Zheni Zeng, Hao Chen, Ge Yu, Zhiyuan Liu, Maosong Sun, Chenyan Xiong

Proceedings of ICLR · 2025 · CCF-Expanded

COAST: Enhancing the Code Debugging Ability of LLMs through Communicative Agent Based Data Synthesis

COAST: Enhancing the Code Debugging Ability of LLMs through Communicative Agent Based Data Synthesis

Weiqing Yang, Hanbin Wang, Zhenghao Liu, Xinze Li, Yukun Yan, Shuo Wang, Yu Gu, Minghe Yu, Zhiyuan Liu, Ge Yu

Proceedings of NAACL (Findings) · 2025 · CCF-B

Enhancing the Patent Matching Capability of Large Language Models via the Memory Graph

Enhancing the Patent Matching Capability of Large Language Models via the Memory Graph

Qiushi Xiong, Zhipeng Xu, Zhenghao Liu, Mengjia Wang, Zulong Chen, Yue Sun, Yu Gu, Xiaohua Li, Ge Yu

Proceedings of SIGIR · 2025 · CCF-A

DeepNote: Note-Centric Deep Retrieval-Augmented Generation

DeepNote: Note-Centric Deep Retrieval-Augmented Generation

Ruobing Wang, Qingfei Zhao, Yukun Yan, Daren Zha, Yuxuan Chen, Shi Yu, Zhenghao Liu, Yixuan Wang, Shuo Wang, Xu Han, Zhiyuan Liu, Maosong Sun

Proceedings of EMNLP (Findings) · 2025 · CCF-B

KBAlign: Efficient Self Adaptation on Specific Knowledge Bases

KBAlign: Efficient Self Adaptation on Specific Knowledge Bases

Zheni Zeng, Yuxuan Chen, Shi Yu, Ruobing Wang, Yukun Yan, Zhenghao Liu, Shuo Wang, Xu Han, Zhiyuan Liu, Maosong Sun

Proceedings of EMNLP (Findings) · 2025 · CCF-B

PersLLM: A Personified Training Approach for Large Language Models

PersLLM: A Personified Training Approach for Large Language Models

Zheni Zeng, Jiayi Chen, Huimin Chen, Yukun Yan, Yuxuan Chen, Zhenghao Liu, Zhiyuan Liu, Maosong Sun

Proceedings of EMNLP (Findings) · 2025 · CCF-B

ClueAnchor: Clue-Anchored Knowledge Reasoning Exploration and Optimization for Retrieval-Augmented Generation

ClueAnchor: Clue-Anchored Knowledge Reasoning Exploration and Optimization for Retrieval-Augmented Generation

Hao Chen, Yukun Yan, Sen Mei, Wanxiang Che, Zhenghao Liu, Qi Shi, Xinze Li, Yuchun Fan, Pengcheng Huang, Qiushi Xiong, Zhiyuan Liu, Maosong Sun

Proceedings of EMNLP (Findings) · 2025 · CCF-B

ReCUT: Balancing Reasoning Length and Accuracy in LLMs via Stepwise Trails and Preference Optimization

ReCUT: Balancing Reasoning Length and Accuracy in LLMs via Stepwise Trails and Preference Optimization

Zhensheng Jin, Xinze Li, Yifan Ji, Chunyi Peng, Zhenghao Liu, Qi Shi, Yukun Yan, Shuo Wang, Furong Peng, Ge Yu

Proceedings of EMNLP (Findings) · 2025 · CCF-B

ExpandR: Teaching Dense Retrievers Beyond Queries with LLM Guidance

ExpandR: Teaching Dense Retrievers Beyond Queries with LLM Guidance

Sijia Yao, Pengcheng Huang, Zhenghao Liu, Yu Gu, Yukun Yan, Shi Yu, Ge Yu

Proceedings of EMNLP · 2025 · CCF-B

RAGEval: Scenario Specific RAG Evaluation Dataset Generation Framework

RAGEval: Scenario Specific RAG Evaluation Dataset Generation Framework

Kunlun Zhu, Yifan Luo, Dingling Xu, Yukun Yan, Zhenghao Liu, Shi Yu, Ruobing Wang, , Shuo Wang, Yishan Li, Nan Zhang, Xu Han, Zhiyuan Liu, Maosong Sun

Proceedings of ACL · 2025 · CCF-A

Judge as A Judge: Improving the Evaluation of Retrieval-Augmented Generation through the Judge-Consistency of Large Language Models

Judge as A Judge: Improving the Evaluation of Retrieval-Augmented Generation through the Judge-Consistency of Large Language Models

Shuliang Liu, Xinze Li, Zhenghao Liu, Yukun Yan, Cheng Yang, Zheni Zeng, Zhiyuan Liu, Maosong Sun, Ge Yu

Proceedings of ACL (Findings) · 2025 · CCF-A

Rankcot: Refining knowledge for retrieval-augmented generation through ranking chain-of-thoughts

Rankcot: Refining knowledge for retrieval-augmented generation through ranking chain-of-thoughts

Mingyan Wu, Zhenghao Liu, Yukun Yan, Xinze Li, Shi Yu, Zheni Zeng, Yu Gu, Ge Yu

Proceedings of ACL · 2025 · CCF-A

Exploring the Potential of Dimension Reduction in Building Efficient Dense Retrieval Systems

Exploring the Potential of Dimension Reduction in Building Efficient Dense Retrieval Systems

Zhipeng Xu, Zhenghao Liu, Yu Gu, Ge Yu

Proceedings of CCIR · 2024

Chameleon: Towards Update-Efficient Learned Indexing for Locally Skewed Data

Chameleon: Towards Update-Efficient Learned Indexing for Locally Skewed Data

Na Guo, Yaqi Wang, Wenli Sun, Yu Gu, Jianzhong Qi, Zhenghao Liu, Xiufeng Xia, Ge Yu

Proceedings of ICDE · 2024 · CCF-A

MCTS: A Multi-Reference Chinese Text Simplification Dataset

MCTS: A Multi-Reference Chinese Text Simplification Dataset

Ruining Chong, Luming Lu, Liner Yang, Jinran Nie, Zhenghao Liu, Shuo Wangl, Shuhan Zhou, Yaoxin Li, Erhong Yang

Proceedings of COLING · 2024 · CCF-B

Fusion-in-T5: Unifying Document Ranking Signals for Improved Information Retrieval

Fusion-in-T5: Unifying Document Ranking Signals for Improved Information Retrieval

Shi Yu, Chenghao Fan, Chenyan Xiong, David Jin, Zhiyuan Liu, Zhenghao Liu

Proceedings of COLING · 2024 · CCF-B

Toolink: Linking toolkit creation and using through chain-of-solving on open-source model

Toolink: Linking toolkit creation and using through chain-of-solving on open-source model

Cheng Qian, Chenyan Xiong, Zhenghao Liu, Zhiyuan Liu

Proceedings of NAACL · 2024 · CCF-B

Modeling User Viewing Flow Using Large Language Models for Article Recommendation

Modeling User Viewing Flow Using Large Language Models for Article Recommendation

Zhenghao Liu, Zulong Chen, Moufeng Zhang, Shaoyang Duan, Hong Wen, Liangyue Li, Nan Li, Yu Gu, Ge Yu

Proceedings of WWW · 2024 · CCF-A

Enhancing Legal Case Retrieval via Scaling High-quality Synthetic Query-Candidate Pairs

Enhancing Legal Case Retrieval via Scaling High-quality Synthetic Query-Candidate Pairs

Cheng Gao, Chaojun Xiao, Zhenghao Liu, Huimin Chen, Zhiyuan Liu, Maosong Sun

Proceedings of EMNLP · 2024 · CCF-B

MatPlotAgent: Method and Evaluation for LLM-Based Agentic Scientific Data Visualization

MatPlotAgent: Method and Evaluation for LLM-Based Agentic Scientific Data Visualization

Zhiyu Yang, Zihan Zhou, Shuo Wang, Xin Cong, Xu Han, Yukun Yan, Zhenghao Liu, Zhixing Tan, Pengyuan Liu, Dong Yu, Zhiyuan Liu, Xiaodong Shi, Maosong Sun

Proceedings of ACL (Findings) · 2024 · CCF-A

INTERVENOR: Prompting the Coding Ability of Large Language Models with the Interactive Chain of Repair

INTERVENOR: Prompting the Coding Ability of Large Language Models with the Interactive Chain of Repair

Hanbin Wang, Zhenghao Liu, Shuo Wang, Ganqu Cui, Ning Ding, Zhiyuan Liu, Ge Yu

Proceedings of ACL (Findings) · 2024 · CCF-A

MARVEL: Unlocking the Multi-Modal Capability of Dense Retrieval via Visual Module Plugin

MARVEL: Unlocking the Multi-Modal Capability of Dense Retrieval via Visual Module Plugin

Tianshuo Zhou, Sen Mei, Xinze Li, Zhenghao Liu, Chenyan Xiong, Zhiyuan Liu, Yu Gu, Ge Yu

Proceedings of ACL · 2024 · CCF-A

UltraLink: An Open-Source Knowledge-Enhanced Multilingual Supervised Fine-tuning Dataset

UltraLink: An Open-Source Knowledge-Enhanced Multilingual Supervised Fine-tuning Dataset

Haoyu Wang, Shuo Wang, Yukun Yan, Xujia Wang, Zhiyu Yang, Yuzhuang Xu, Zhenghao Liu, Ning Ding, Xu Han, Zhiyuan Liu, Maosong Sun

Proceedings of ACL · 2024 · CCF-A

Cleaner Pretraining Corpus Curation with Neural Web Scraping

Cleaner Pretraining Corpus Curation with Neural Web Scraping

Zhipeng Xu, Zhenghao Liu, Yukun Yan, Zhiyuan Liu, Chenyan Xiong, Ge Yu

Proceedings of ACL · 2024 · CCF-A

Text Matching Improves Sequential Recommendation by Reducing Popularity Biases

Text Matching Improves Sequential Recommendation by Reducing Popularity Biases

Zhenghao Liu, Sen Mei, Chenyan Xiong, Xiaohua Li, Shi Yu, Zhiyuan Liu, Yu Gu, Ge Yu

Proceedings of CIKM · 2023 · CCF-B

Universal Vision-Language Dense Retrieval: Learning A Unified Representation Space for Multi-Modal Retrieval

Universal Vision-Language Dense Retrieval: Learning A Unified Representation Space for Multi-Modal Retrieval

Zhenghao Liu, Chenyan Xiong, Yuanhuiyi Lv, Zhiyuan Liu, Ge Yu

Proceedings of ICLR · 2023 · CCF-Expanded

Openmatch-v2: An all-in-one multi-modality plm-based information retrieval toolkit

Openmatch-v2: An all-in-one multi-modality plm-based information retrieval toolkit

Shi Yu, Zhenghao Liu, Chenyan Xiong, Zhiyuan Liu

Proceedings of SIGIR · 2023 · CCF-A

Structure-Aware Language Model Pretraining Improves Dense Retrieval on Structured Data

Structure-Aware Language Model Pretraining Improves Dense Retrieval on Structured Data

Xinze Li, Zhenghao Liu, Chenyan Xiong, Shi Yu, Yu Gu, Zhiyuan Liu, Ge Yu

Proceedings of ACL (Findings) · 2023 · CCF-A

Leveraging Prefix Transfer for Multi-Intent Text Revision

Leveraging Prefix Transfer for Multi-Intent Text Revision

Ruining Chong, Cunliang Kong, Liu Wu, Zhenghao Liu, Ziye Jin, Liner Yang, Yange Fan, Hanghang Fan, Erhong Yang

Proceedings of ACL · 2023 · CCF-A

P3 Ranker: Mitigating the Gaps between Pre-training and Ranking Fine-tuning with Prompt-based Learning and Pre-finetuning

P3 Ranker: Mitigating the Gaps between Pre-training and Ranking Fine-tuning with Prompt-based Learning and Pre-finetuning

Xiaomeng Hu, Shi Yu, Chenyan Xiong, Zhenghao Liu, Zhiyuan Liu, Ge Yu

Proceedings of SIGIR · 2022 · CCF-A

Dimension Reduction for Efficient Dense Retrieval via Conditional Autoencoder

Dimension Reduction for Efficient Dense Retrieval via Conditional Autoencoder

Zhenghao Liu, Han Zhang, Chenyan Xiong, Zhiyuan Liu, Yu Gu, Xiaohua Li

Proceedings of EMNLP · 2022 · CCF-B

Neural Quality Estimation with Multiple Hypotheses for Grammatical Error Correction

Neural Quality Estimation with Multiple Hypotheses for Grammatical Error Correction

Zhenghao Liu, Xiaoyuan Yi, Maosong Sun, Liner Yang, Tat-Seng Chua

Proceedings of NAACL · 2021 · CCF-B

More robust dense retrieval with contrastive dual learning

More robust dense retrieval with contrastive dual learning

Yizhi Li, Zhenghao Liu, Chenyan Xiong, Zhiyuan Liu

Proceedings of ICTIR · 2021

OpenMatch: An Open Source Library for Neu-IR Research

OpenMatch: An Open Source Library for Neu-IR Research

Zhenghao Liu, Kaitao Zhang, Chenyan Xiong, Zhiyuan Liu, Maosong Sun

Proceedings of SIGIR · 2021 · CCF-A

Few-Shot Conversational Dense Retrieval

Few-Shot Conversational Dense Retrieval

Shi Yu, Zhenghao Liu, Chenyan Xiong, Tao Feng, Zhiyuan Liu

Proceedings of SIGIR · 2021 · CCF-A

Capturing Global Informativeness in Open Domain Keyphrase Extraction

Capturing Global Informativeness in Open Domain Keyphrase Extraction

Si Sun, Zhenghao Liu, Chenyan Xiong, Zhiyuan Liu, Jie Bao

Proceedings of NLPCC · 2021 · CCF-C

TIAGE: A Benchmark for Topic-Shift Aware Dialog Modeling

TIAGE: A Benchmark for Topic-Shift Aware Dialog Modeling

Huiyuan Xie, Zhenghao Liu, Chenyan Xiong, Zhiyuan Liu, Ann Copestake

Proceedings of EMNLP (Findings) · 2021 · CCF-B

Few-Shot Text Ranking with Meta Adapted Synthetic Weak Supervision

Few-Shot Text Ranking with Meta Adapted Synthetic Weak Supervision

Si Sun, Yingzhuo Qian, Zhenghao Liu, Chenyan Xiong, Kaitao Zhang, Jie Bao, Zhiyuan Liu, Paul Bennett

Proceedings of ACL-IJCNLP · 2021 · CCF-A

Text Style Transfer via Learning Style Instance Supported Latent Space

Text Style Transfer via Learning Style Instance Supported Latent Space

Kaitao Zhang, Chenyan Xiong, Zhenghao Liu, Zhiyuan Liu

Proceedings of IJCAI · 2020 · CCF-A

Selective Weak Supervision for Neural Information Retrieval

Selective Weak Supervision for Neural Information Retrieval

Kaitao Zhang, Chenyan Xiong, Zhenghao Liu, Zhiyuan Liu

Proceedings of WWW · 2020 · CCF-A

Adapting Open Domain Fact Extraction and Verification to COVID-FACT through In-Domain Language Modeling

Adapting Open Domain Fact Extraction and Verification to COVID-FACT through In-Domain Language Modeling

Zhenghao Liu, Chenyan Xiong, Zhuyun Dai, Si Sun, Maosong Sun, Zhiyuan Liu

Proceedings of EMNLP (Findings) · 2020 · CCF-B

Coreferential Reasoning Learning for Language Representation

Coreferential Reasoning Learning for Language Representation

Deming Ye, Yankai Lin, Jiaju Du, Zhenghao Liu, Peng Li, Maosong Sun, Zhiyuan Liu

Proceedings of EMNLP · 2020 · CCF-B

Fine-grained Fact Verification with Kernel Graph Attention Network

Fine-grained Fact Verification with Kernel Graph Attention Network

Zhenghao Liu, Chenyan Xiong, Maosong Sun, Zhiyuan Liu

Proceedings of ACL · 2020 · CCF-A

Grounded Conversation Generation as Guided Traverses in Commonsense Knowledge Graphs

Grounded Conversation Generation as Guided Traverses in Commonsense Knowledge Graphs

Houyu Zhang, Zhenghao Liu, Chenyan Xiong, Zhiyuan Liu

Proceedings of ACL · 2020 · CCF-A

Explore Entity Embedding Effectiveness in Entity Retrieval

Explore Entity Embedding Effectiveness in Entity Retrieval

Zhenghao Liu, Chenyan Xiong, Maosong Sun, Zhiyuan Liu

Proceedings of CCL · 2019

DocRED: A Large-Scale Document-Level Relation Extraction Dataset

DocRED: A Large-Scale Document-Level Relation Extraction Dataset

Yuan Yao, Deming Ye, Peng Li, Xu Han, Yankai Lin, Zhenghao Liu, Zhiyuan Liu, Lixin Huang, Jie Zhou, Maosong Sun

Proceedings of ACL · 2019 · CCF-A

Entity-Duet Neural Ranking: Understanding the Role of Knowledge Graph Semantics in Neural Information Retrieval

Entity-Duet Neural Ranking: Understanding the Role of Knowledge Graph Semantics in Neural Information Retrieval

Zhenghao Liu, Chenyan Xiong, Maosong Sun, Zhiyuan Liu

Proceedings of ACL · 2018 · CCF-A

Journal

Building A Coding Assistant via the Retrieval-Augmented Language Model

Building A Coding Assistant via the Retrieval-Augmented Language Model

Xinze Li, Hanbin Wang, Zhenghao Liu, Shi Yu, Shuo Wang, Yukun Yan, Yukai Fu, Yu Gu, Ge Yu

Journal of ACM Transactions on Information Systems (TOIS) · 2024 · CCF-A

CHGNN: A Semi-Supervised Contrastive Hypergraph Learning Network

CHGNN: A Semi-Supervised Contrastive Hypergraph Learning Network

Yumeng Song, Yu Gu, Tianyi Li, Jianzhong Qi, Zhenghao Liu, Christian S Jensen, Ge Yu

Journal of IEEE Transactions on Knowledge and Data Engineering (TKDE) · 2024 · CCF-A

Tailored Definitions With Easy Reach: Complexity-Controllable Definition Generation

Tailored Definitions With Easy Reach: Complexity-Controllable Definition Generation

Liner Yang, Jiaxin Yuan, Cunliang Kong, Jingsi Yu, Ruining Chong, Zhenghao Liu, Erhong Yang

Journal of IEEE Transactions on Big Data (TBD) · 2024 · CCF-C

Multi-Evidence based Fact Verification via A Confidential Graph Neural Network

Multi-Evidence based Fact Verification via A Confidential Graph Neural Network

Yuqing Lan, Zhenghao Liu, Yu Gu, Xiaoyuan Yi, Xiaohua Li, Liner Yang, Ge Yu

Journal of IEEE Transactions on Big Data (TBD) · 2024 · CCF-C

Neural Parse Combination

Neural Parse Combination

Liner Yang, Maosong Sun, Jiacheng Zhang, Zhenghao Liu, Huanbo Luan, Yang Liu

Journal of Computer Science and Technology (JCST) · 2017 · CCF-B