Chenyan Xiong

2026

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Agentic Search in the Wild: Intents and Trajectory Dynamics from 14M+ Real Search Requests.
Zhaohua Zhang|Jingjie Ning|Jingjie Ning|Zhaohua Zhang|Boran Hou|João Coelho|Boran Hou|João Coelho|Rebecca J. Stones|Yibo Kong|Chenyan Xiong|Masoud Makrehchi|Gang Wang|Rebecca J. Stones|Yibo Kong|Yunfan Long|Gang Wang|Yunfan Long|Bruno Martins|Xiaoguang Liu|Xiaoguang Liu|Bruno Martins|João Magalhães|Jamie Callan|Chenyan Xiong|Masoud Makrehchi
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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Deep Research Comparator: A Platform For Fine-grained Human Annotations of Deep Research Agents.
Prahaladh Chandrahasan|Jiahe Jin|Zhihan Zhang|Tevin Wang|Andy Tang|Lucy Mo|Morteza Ziyadi|Leonardo F. R. Ribeiro|Zimeng Qiu|Markus Dreyer|Akari Asai|Chenyan Xiong
Companion Proceedings of the ACM Web Conference 2026, WWW Companion 2026, Dubai, United Arab Emirates, 29 June 2026 - 3 July 2026

2025

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Aligning Web Query Generation with Ranking Objectives via Direct Preference Optimization.
João Coelho|Bruno Martins|João Magalhães|Chenyan Xiong
Proceedings of the 48th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2025, Padua, Italy, July 13-18, 2025

2024

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Proceedings of the 2024 ACM SIGIR International Conference on Theory of Information Retrieval, ICTIR 2024, Washington, DC, USA, 13 July 2024
International Conference on the Theory of Information Retrieval (ICTIR) 2024
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MS MARCO Web Search: A Large-scale Information-rich Web Dataset with Millions of Real Click Labels.
Qi Chen|Xiubo Geng|Corby Rosset|Carolyn Buractaon|Jingwen Lu|Tao Shen|Kun Zhou|Chenyan Xiong|Yeyun Gong|Paul N. Bennett|Nick Craswell|Xing Xie|Fan Yang|Bryan Tower|Nikhil Rao|Anlei Dong|Wenqi Jiang|Zheng Liu|Mingqin Li|Chuanjie Liu|Zengzhong Li|Rangan Majumder|Jennifer Neville|Andy Oakley|Knut Magne Risvik|Harsha Vardhan Simhadri|Manik Varma|Yujing Wang|Linjun Yang|Mao Yang|Ce Zhang
Companion Proceedings of the ACM on Web Conference 2024, WWW 2024, Singapore, Singapore, May 13-17, 2024

2023

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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 the 32nd ACM International Conference on Information and Knowledge Management, CIKM 2023, Birmingham, United Kingdom, October 21-25, 2023
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Unsupervised Dense Retrieval Training with Web Anchors.
Yiqing Xie|Xiao Liu|Chenyan Xiong
Proceedings of the 46th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2023, Taipei, Taiwan, July 23-27, 2023
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OpenMatch-v2: An All-in-one Multi-Modality PLM-based Information Retrieval Toolkit.
Shi Yu|Zhenghao Liu|Chenyan Xiong|Zhiyuan Liu
Proceedings of the 46th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2023, Taipei, Taiwan, July 23-27, 2023

2022

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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
SIGIR '22: The 45th International ACM SIGIR Conference on Research and Development in Information Retrieval, Madrid, Spain, July 11 - 15, 2022
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ClueWeb22: 10 Billion Web Documents with Rich Information.
Arnold Overwijk|Chenyan Xiong|Jamie Callan
SIGIR '22: The 45th International ACM SIGIR Conference on Research and Development in Information Retrieval, Madrid, Spain, July 11 - 15, 2022

2021

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Improving Query Representations for Dense Retrieval with Pseudo Relevance Feedback.
HongChien Yu|Chenyan Xiong|Jamie Callan
CIKM '21: The 30th ACM International Conference on Information and Knowledge Management, Virtual Event, Queensland, Australia, November 1 - 5, 2021
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More Robust Dense Retrieval with Contrastive Dual Learning.
Yizhi Li|Zhenghao Liu|Chenyan Xiong|Zhiyuan Liu
ICTIR '21: The 2021 ACM SIGIR International Conference on the Theory of Information Retrieval, Virtual Event, Canada, July 11, 2021
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OpenMatch: An Open Source Library for Neu-IR Research.
Zhenghao Liu|Kaitao Zhang|Chenyan Xiong|Zhiyuan Liu|Maosong Sun
SIGIR '21: The 44th International ACM SIGIR Conference on Research and Development in Information Retrieval, Virtual Event, Canada, July 11-15, 2021
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Few-Shot Conversational Dense Retrieval.
Rajat Arora|Shi Yu|Zhenghao Liu|Kevin Kao|Hsiang Lin|Chenyan Xiong|Yusuke Takebuchi|Tao Feng|Jingwei Wu|Zhiyuan Liu|Rajat Arora|Shi Yu|Zhenghao Liu|Kevin Kao|Hsiang Lin|Chenyan Xiong|Yusuke Takebuchi|Tao Feng|Zhiyuan Liu|Jingwei Wu
SIGIR '21: The 44th International ACM SIGIR Conference on Research and Development in Information Retrieval, Virtual Event, Canada, July 11-15, 2021
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TREC CAsT 2021: The Conversational Assistance Track Overview.
Jeffrey Dalton|Chenyan Xiong|Jamie Callan
Proceedings of the Thirtieth Text REtrieval Conference, TREC 2021, online, November 15-19, 2021

2020

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Report on the first workshop on bias in automatic knowledge graph construction at AKBC 2020.
Tara Safavi|Edgar Meij|Fatma Özcan|Miriam Redi|Gianluca Demartini|Chenyan Xiong
SIGIR Forum 2020 Volume 54 Issue 2
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CAsT-19: A Dataset for Conversational Information Seeking.
Jeffrey Dalton|Chenyan Xiong|Vaibhav Kumar|Jamie Callan
Proceedings of the 43rd International ACM SIGIR conference on research and development in Information Retrieval, SIGIR 2020, Virtual Event, China, July 25-30, 2020
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Recent Advances in Conversational Information Retrieval.
Jianfeng Gao|Chenyan Xiong|Paul Bennett
Proceedings of the 43rd International ACM SIGIR conference on research and development in Information Retrieval, SIGIR 2020, Virtual Event, China, July 25-30, 2020
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Knowledge Enhanced Personalized Search.
Shuqi Lu|Zhicheng Dou|Chenyan Xiong|Xiaojie Wang|Ji-Rong Wen
Proceedings of the 43rd International ACM SIGIR conference on research and development in Information Retrieval, SIGIR 2020, Virtual Event, China, July 25-30, 2020
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Contextual Re-Ranking with Behavior Aware Transformers.
Chen Qu|Chenyan Xiong|Yizhe Zhang|Corby Rosset|W. Bruce Croft|Paul N. Bennett
Proceedings of the 43rd International ACM SIGIR conference on research and development in Information Retrieval, SIGIR 2020, Virtual Event, China, July 25-30, 2020
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Few-Shot Generative Conversational Query Rewriting.
Shi Yu|Jiahua Liu|Jingqin Yang|Chenyan Xiong|Paul N. Bennett|Jianfeng Gao|Zhiyuan Liu
Proceedings of the 43rd International ACM SIGIR conference on research and development in Information Retrieval, SIGIR 2020, Virtual Event, China, July 25-30, 2020
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CAsT 2020: The Conversational Assistance Track Overview.
Jeffrey Dalton|Chenyan Xiong|Jamie Callan
Proceedings of the Twenty-Ninth Text REtrieval Conference, TREC 2020, Virtual Event [Gaithersburg, Maryland, USA], November 16-20, 2020.
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Leading Conversational Search by Suggesting Useful Questions.
Corbin Rosset|Chenyan Xiong|Xia Song|Daniel Campos|Nick Craswell|Saurabh Tiwary|Paul N. Bennett
WWW '20: The Web Conference 2020, Taipei, Taiwan, April 20-24, 2020
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TaxoExpan: Self-supervised Taxonomy Expansion with Position-Enhanced Graph Neural Network.
Jiaming Shen|Zhihong Shen|Chenyan Xiong|Chi Wang|Kuansan Wang|Jiawei Han
WWW '20: The Web Conference 2020, Taipei, Taiwan, April 20-24, 2020
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Selective Weak Supervision for Neural Information Retrieval.
Kaitao Zhang|Chenyan Xiong|Zhenghao Liu|Zhiyuan Liu
WWW '20: The Web Conference 2020, Taipei, Taiwan, April 20-24, 2020
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Complex Factoid Question Answering with a Free-Text Knowledge Graph.
Chen Zhao|Chenyan Xiong|Xin Qian|Jordan L. Boyd-Graber
WWW '20: The Web Conference 2020, Taipei, Taiwan, April 20-24, 2020

2019

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Special issue on knowledge graphs and semantics in text analysis and retrieval.
Laura Dietz|Chenyan Xiong|Jeff Dalton|Edgar Meij
Discover Computing 2019 Volume 22 Issue 3-4
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Neural Document Expansion with User Feedback.
Yue Yin|Chenyan Xiong|Cheng Luo|Zhiyuan Liu
Proceedings of the 2019 ACM SIGIR International Conference on Theory of Information Retrieval, ICTIR 2019, Santa Clara, CA, USA, October 2-5, 2019.
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An Axiomatic Approach to Regularizing Neural Ranking Models.
Corby Rosset|Bhaskar Mitra|Chenyan Xiong|Nick Craswell|Xia Song|Saurabh Tiwary
Proceedings of the 42nd International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2019, Paris, France, July 21-25, 2019.
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Generic Intent Representation in Web Search.
Hongfei Zhang|Xia Song|Chenyan Xiong|Corby Rosset|Paul N. Bennett|Nick Craswell|Saurabh Tiwary
Proceedings of the 42nd International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2019, Paris, France, July 21-25, 2019.

2018

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Text Representation, Retrieval, and Understanding with Knowledge Graphs.
Chenyan Xiong
SIGIR Forum 2018 Volume 52 Issue 2
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The Second Workshop on Knowledge Graphs and Semantics for Text Retrieval, Analysis, and Understanding (KG4IR).
Laura Dietz|Chenyan Xiong|Jeff Dalton|Edgar Meij
The 41st International ACM SIGIR Conference on Research & Development in Information Retrieval, SIGIR 2018, Ann Arbor, MI, USA, July 08-12, 2018
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Consistency and Variation in Kernel Neural Ranking Model.
Mary Arpita Pyreddy|Varshini Ramaseshan|Narendra Nath Joshi|Zhuyun Dai|Chenyan Xiong|Jamie Callan|Zhiyuan Liu
The 41st International ACM SIGIR Conference on Research & Development in Information Retrieval, SIGIR 2018, Ann Arbor, MI, USA, July 08-12, 2018
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Towards Better Text Understanding and Retrieval through Kernel Entity Salience Modeling.
Chenyan Xiong|Zhengzhong Liu|Jamie Callan|Tie-Yan Liu
The 41st International ACM SIGIR Conference on Research & Development in Information Retrieval, SIGIR 2018, Ann Arbor, MI, USA, July 08-12, 2018
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Improving Ad Hoc Retrieval With Bag Of Entities.
Gustavo Gonçalves|João Magalhães|Chenyan Xiong|Jamie Callan
Proceedings of the Twenty-Seventh Text REtrieval Conference, TREC 2018, Gaithersburg, Maryland, USA, November 14-16, 2018
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Convolutional Neural Networks for Soft-Matching N-Grams in Ad-hoc Search.
Zhuyun Dai|Chenyan Xiong|Jamie Callan|Zhiyuan Liu
Proceedings of the Eleventh ACM International Conference on Web Search and Data Mining, WSDM 2018, Marina Del Rey, CA, USA, February 5-9, 2018
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Query Suggestion with Feedback Memory Network.
Bin Wu|Chenyan Xiong|Maosong Sun|Zhiyuan Liu
Proceedings of the 2018 World Wide Web Conference on World Wide Web, WWW 2018, Lyon, France, April 23-27, 2018

2017

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Overview of The First Workshop on Knowledge Graphs and Semantics for Text Retrieval and Analysis (KG4IR).
Laura Dietz|Chenyan Xiong|Edgar Meij
SIGIR Forum 2017 Volume 51 Issue 3
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JointSem: Combining Query Entity Linking and Entity based Document Ranking.
Chenyan Xiong|Zhengzhong Liu|Jamie Callan|Eduard H. Hovy
Proceedings of the 2017 ACM on Conference on Information and Knowledge Management, CIKM 2017, Singapore, November 06 - 10, 2017
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Overview of the NTCIR-13 We Want Web Task.
Cheng Luo|Tetsuya Sakai|Yiqun Liu|Zhicheng Dou|Chenyan Xiong|Jingfang Xu
The 13th NTCIR Conference, Evaluation of Information Access Technologies, National Center of Sciences, Tokyo, Japan, December 5-8, 2017
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An Evaluation of the Kernel Based Neural Ranking Model in NTCIR-13 WWW.
Zhuyun Dai|Chenyan Xiong|Jamie Callan
The 13th NTCIR Conference, Evaluation of Information Access Technologies, National Center of Sciences, Tokyo, Japan, December 5-8, 2017
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The First Workshop on Knowledge Graphs and Semantics for Text Retrieval and Analysis (KG4IR).
Laura Dietz|Chenyan Xiong|Edgar Meij
Proceedings of the 40th International ACM SIGIR Conference on Research and Development in Information Retrieval, Shinjuku, Tokyo, Japan, August 7-11, 2017
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DBpedia-Entity v2: A Test Collection for Entity Search.
Faegheh Hasibi|Fedor Nikolaev|Chenyan Xiong|Krisztian Balog|Svein Erik Bratsberg|Alexander Kotov|Jamie Callan
Proceedings of the 40th International ACM SIGIR Conference on Research and Development in Information Retrieval, Shinjuku, Tokyo, Japan, August 7-11, 2017
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Word-Entity Duet Representations for Document Ranking.
Chenyan Xiong|Jamie Callan|Tie-Yan Liu
Proceedings of the 40th International ACM SIGIR Conference on Research and Development in Information Retrieval, Shinjuku, Tokyo, Japan, August 7-11, 2017
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End-to-End Neural Ad-hoc Ranking with Kernel Pooling.
Chenyan Xiong|Zhuyun Dai|Jamie Callan|Zhiyuan Liu|Russell Power
Proceedings of the 40th International ACM SIGIR Conference on Research and Development in Information Retrieval, Shinjuku, Tokyo, Japan, August 7-11, 2017
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Explicit Semantic Ranking for Academic Search via Knowledge Graph Embedding.
Chenyan Xiong|Russell Power|Jamie Callan
Proceedings of the 26th International Conference on World Wide Web, WWW 2017, Perth, Australia, April 3-7, 2017

2016

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Query-Biased Partitioning for Selective Search.
Zhuyun Dai|Chenyan Xiong|Jamie Callan
Proceedings of the 25th ACM International Conference on Information and Knowledge Management, CIKM 2016, Indianapolis, IN, USA, October 24-28, 2016
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Bag-of-Entities Representation for Ranking.
Chenyan Xiong|Jamie Callan|Tie-Yan Liu
Proceedings of the 2016 ACM on International Conference on the Theory of Information Retrieval, ICTIR 2016, Newark, DE, USA, September 12- 6, 2016
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An Empirical Study of Learning to Rank for Entity Search.
Jing Chen|Chenyan Xiong|Jamie Callan
Proceedings of the 39th International ACM SIGIR conference on Research and Development in Information Retrieval, SIGIR 2016, Pisa, Italy, July 17-21, 2016

2015

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EsdRank: Connecting Query and Documents through External Semi-Structured Data.
Chenyan Xiong|Jamie Callan
Proceedings of the 24th ACM International Conference on Information and Knowledge Management, CIKM 2015, Melbourne, VIC, Australia, October 19 - 23, 2015
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Query Expansion with Freebase.
Chenyan Xiong|Jamie Callan
Proceedings of the 2015 International Conference on The Theory of Information Retrieval, ICTIR 2015, Northampton, Massachusetts, USA, September 27-30, 2015

2014

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A language modeling approach to entity recognition and disambiguation for search queries.
Bhavana Bharat Dalvi|Jean Petit Bikim|Jamie Callan|Philip S. Yu|Chenyan Xiong|Jean Petit Bikim|Jamie Callan|Philip S. Yu|Bhavana Bharat Dalvi
ERD'14, Proceedings of the First ACM International Workshop on Entity Recognition & Disambiguation, July 11, 2014, Gold Coast, Queensland, Australia

2012

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Relational click prediction for sponsored search.
Chenyan Xiong|Taifeng Wang|Wenkui Ding|Yidong Shen|Tie-Yan Liu
Proceedings of the Fifth International Conference on Web Search and Web Data Mining, WSDM 2012, Seattle, WA, USA, February 8-12, 2012