Table Of ContentHongfei Lin
Min Zhang
Liang Pang (Eds.)
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27th China Conference, CCIR 2021
Dalian, China, October 29–31, 2021
Proceedings
Lecture Notes in Computer Science 13026
Founding Editors
Gerhard Goos
Karlsruhe Institute of Technology, Karlsruhe, Germany
Juris Hartmanis
Cornell University, Ithaca, NY, USA
Editorial Board Members
Elisa Bertino
Purdue University, West Lafayette, IN, USA
Wen Gao
Peking University, Beijing, China
Bernhard Steffen
TU Dortmund University, Dortmund, Germany
Gerhard Woeginger
RWTH Aachen, Aachen, Germany
Moti Yung
Columbia University, New York, NY, USA
More information about this subseries at http://www.springer.com/series/7407
Hongfei Lin Min Zhang
(cid:129) (cid:129)
Liang Pang (Eds.)
Information Retrieval
27th China Conference, CCIR 2021
–
Dalian, China, October 29 31, 2021
Proceedings
123
Editors
Hongfei Lin Min Zhang
DalianUniversity ofTechnology Department ofComputer Science
Dalian, China TsinghuaUniversity
Beijing,China
LiangPang
Institute of Computing Technology
ChineseAcademy of Sciences
Beijing,China
ISSN 0302-9743 ISSN 1611-3349 (electronic)
Lecture Notesin Computer Science
ISBN 978-3-030-88188-7 ISBN978-3-030-88189-4 (eBook)
https://doi.org/10.1007/978-3-030-88189-4
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Preface
The 2021 China Conference on Information Retrieval (CCIR 2021), co-organized by
the Chinese Information Processing Society of China (CIPS) and the Chinese
Computer Federation (CCF), was the 27th installment of the conference series. The
conferencewashostedbyDalianUniversityofForeignLanguagesinDalian,Liaoning,
China, during October 29–31, 2021.
The annual CCIR conference serves as the major forum for researchers and prac-
titionersfrombothChinaandotherAsiancountries/regionstosharetheirideas,present
newresearchresults,anddemonstratenewsystemsandtechniquesinthebroadfieldof
informationretrieval(IR).SinceCCIR2017,theconferencehasenjoyedcontributions
spanning the theory and application of IR, both in English and Chinese.
This year we received a total of 124 submissions from both China and other Asian
countries. Each submission was carefully reviewed by at least three domain experts,
and the Program Committee (PC) chairs made the final decisions. We accepted 72,
among which 15 were English papers and 57 were Chinese papers. The final English
program of CCIR 2021 featured 15 papers.
CCIR 2021 included abundant academic activities. Besides keynote speeches
delivered by world-renowned scientists from China and abroad, and traditional paper
presentation sessions and poster sessions, we also hosted a young scientist forum, an
evaluationworkshop,andtutorialsonfrontierresearch topics.Wealsoinvitedauthors
from related international conferences (such as SIGIR and CIKM) to share their
research results as well. CCIR 2021 featured four keynote speeches by James Allen
(UniversityofMassachusettsAmherst),SiWu(PekingUniversity),JunWang(UCL),
and Zhongyuan Wang (Meituan Inc.).
The conference and program chairs of CCIR 2021 extend their sincere gratitude to
all authors and contributors to this year’s conference. We are also grateful to the PC
members for their reviewing effort, which guaranteed that CCIR 2021 could feature a
quality program of original and innovative research in IR. Special thanks go to our
sponsors for their generosity: Meituan Inc., Huawei Inc., and Baidu Inc.
October 2021 Hong Liu
Jiafeng Guo
Hongfei Lin
Min Zhang
Liang Pang
Organization
General Chairs
Hong Liu Dalian University of Foreign Languages, China
Jiafeng Guo Institute of Computing Technology, Chinese Academy
of Sciences, China
Program Committee Chairs
Hongfei Lin Dalian University of Technology, China
Min Zhang Tsinghua University, China
Proceedings Chairs
Ruihua Qi Dalian University of Foreign Languages, China
Liang Yang Dalian University of Technology, China
Publicity Chair
Zhumin Chen Shandong University, China
Publication Chair
Liang Pang Institute of Computing Technology, Chinese Academy
of Sciences, China
Webmaster
Yuan Lin Dalian University of Technology, China
Youth Forum Chairs
Xin Zhao Renmin University of China, China
Chenliang Li Wuhan University, China
CCIR Cup Chairs
Jianming Lv South China University of Technology, China
Weiran Xu Beijing University of Posts and Telecommunications,
China
viii Organization
Sponsorship Chairs
Qi Zhang Fudan University, China
Zhongyuan Wang Kwai Inc., China
Treasurers
Kan Xu Dalian University of Technology, China
Song Yang Dalian University of Foreign Languages, China
Award Chair
Ru Li Shanxi University, China
Program Committee
Ting Bai Beijing University of Posts and Telecommunications,
China
Fei Cai National University of Defense Technology, China
Jiawei Chen UniversityofScienceandTechnologyofChina,China
Xiaoliang Chen Xihua University, China
Yubo Chen InstituteofAutomation,ChineseAcademyofSciences,
China
Zhumin Chen Shandong University, China
Zhicheng Dou Renmin University of China, China
Yajun Du Xihua University, China
Yixing Fan Institute of Computing Technology, Chinese Academy
of Sciences, China
Shengxiang Gao KunmingUniversityofScienceandTechnology,China
Zhongyuan Han Foshan University, China
Yanbin Hao UniversityofScienceandTechnologyofChina,China
Ben He University of Chinese Academy of Sciences, China
Xiangnan He UniversityofScienceandTechnologyofChina,China
Yu Hong Soochow University, China
Zhuoren Jiang Zhejiang University, China
Ting Jin Hainan University, China
Yanyan Lan Tsinghua University, China
Chenliang Li Wuhan University, China
Lishuang Li Dalian University of Technology, China
Ru Li Shanxi University, China
Shangsong Liang Sun Yat-sen University, China
Xiangwen Liao Fuzhou University, China
Hongfei Lin Dalian University of Technology, China
Yuan Lin Dalian University of Technology, China
Chang Liu Peking University, China
Peiyu Liu Shandong Normal University, China
Organization ix
Yue Liu Institute of Computing Technology, Chinese Academy
of Sciences, China
Cheng Luo Tsinghua University, China
Zhunchen Luo PLA Academy of Military Science, China
Jianming Lv South China University of Technology, China
Ziyu Lyu Shenzhen Institute of Advanced Technology,
Chinese Academy of Sciences, China
Weizhi Ma Tsinghua University, China
Jiaxin Mao Tsinghua University, China
Xianling Mao Beijing Institute of Technology, China
Liqiang Nie Shandong University, China
Liang Pang Institute of Computing Technology, Chinese Academy
of Sciences, China
Zhaochun Ren Shandong University, China
Tong Ruan East China University of Science and Technology,
China
Huawei Shen Institute of Computing Technology, Chinese Academy
of Sciences, China
Dawei Song Beijing Institute of Technology, China
Ruihua Song Renmin University of China, China
Xuemeng Song Shandong University, China
Hongye Tan Shanxi University, China
Songbo Tan Beijing Hengchang Litong Investment Management
Co., Ltd., China
Liang Tang Information Engineering University, China
Hongjun Wang TRS Information Technology Co., Ltd., China
Pengfei Wang Beijing Institute of Technology, China
Suge Wang Shanxi University, China
Ting Wang National University of Defense Technology, China
Zhiqiang Wang Shanxi University, China
Zhongyuan Wang Meituan, China
Dan Wu Wuhan University, China
Le Wu Hefei University of Technology, China
Yueyue Wu Tsinghua University, China
Jun Xu Renmin University of China, China
Tong Xu UniversityofScienceandTechnologyofChina,China
Weiran Xu Beijing Institute of Technology, China
Hongbo Xu Institute of Computing Technology, Chinese Academy
of Sciences, China
Kan Xu Dalian University of Technology, China
Hongfei Yan Peking University, China
Xiaohui Yan Huawei, China
Muyun Yang Harbin Institute of Technology, China
Zhihao Yang Dalian University of Technology, China
Dongyu Zhang Dalian University of Technology, China
Hu Zhang Shanxi University, China
x Organization
Min Zhang Tsinghua University, China
Peng Zhang Tianjin University, China
Qi Zhang Fudan University, China
Ruqing Zhang Institute of Computing Technology, Chinese Academy
of Sciences, China
Weinan Zhang Harbin Institute of Technology, China
Ying Zhang Nankai University, China
Yu Zhang Harbin Institute of Technology, China
Chengzhi Zhang Nanjing University of Science and Technology, China
Xin Zhao Renmin University of China, China
Jianxing Zheng Shanxi University, China
Qingqing Zhou Nanjing Normal University, China
Jianke Zhu Zhejiang University, China
Xiaofei Zhu Chongqing University of Technology, China
Zhenfang Zhu ShanDong JiaoTong University, China
Jiali Zuo Jiangxi Normal University, China
