Big Data Analysis Group
Our research topics include federated learning, data federation, spatiotemporal big data analysis, privacy-preserving data analysis and crowd intelligence.
We design and develop big data algorithms and systems with both theoretical guarantees and practical usage.
  • [2022/09] Our MOOC Course "Algorithm Design and Analysis" was online for the sixth time.
  • [2022/01] Our system paper "Hu-Fu" was accepted by PVLDB 2022.
  • [2022/11] Our three papers were accepted by ICDE 2023, SIGMOD 2023.
  • [2022/09] Congratulations to Xuchen Pan for winning the "National Scholarship 2022".
  • [2022/05] Our two papers were accepted by SIGKDD 2022.
  • [2022/01] Our five papers were accepted by TKDE, SIGMOD 2022, ICDE 2022.
  • More...

Faculty

yxtong(AT)buaa.edu.cn
kexu(AT)nlsde.buaa.edu.cn
Yi Xu
xuy(AT)buaa.edu.cn

Postdoctors

Nan Zhou
Postdoctor, 2021-present
4 papers in ICDE, WWWJ, NeuroComp. 4 patents.
Postdoctor, 2022-present
10+ papers in TKDE, VLDB, ICDE, AAAI
Silver Medal of ACM-ICPC EC-FINAL
Gold Medal of ACM-ICPC Regional Contest

Ph.D Students

Ph.D. 2020-present
10+ papers in AAAI, SIGKDD, ICDE
National Scholarship
World Championship of KDD Cup 2020

Ph.D. 2020-present
Outstanding Graduate of Beijing
First Prize of MCM/ICM

Ph.D. 2021-present
2 papers in MDM, JOS
National Scholarship
IEEE MDM 2021 Best Paper Award
Gold Medal of ACM-CCPC Girls' Match

Ph.D. 2022-present
10 papers in TKDE, ICDE, SIGKDD
National Scholarship
World Championship of KDD Cup 2020
Outstanding Graduate of Beijing

Ph.D. 2022-present
5 papers in ICDE, MDM, BigData
National Scholarship
IEEE MDM 2021 Best Student Paper Award
Outstanding Graduate of Beijing

Yang Song
Ph.D. 2022-present
Outstanding Postgraduate of Nanjing University

Master Students

Master. 2020-present
1 paper in ICDE
Outstanding Graduate of Beihang University
Master. 2020-present
2 papers in VLDB
National Scholarship
Master. 2020-present
2 papers in DASFAA, JOS
First Prize of National College Student Physics Competition
First Prize of National College Student Mathematics Competition

Master. 2020-present
National Scholarship
Second Prize of MCM/ICM

Master. 2021-present
Gold Medal of ACM-ICPC EC-FINAL
Bronze Medal of ACM-ICPC Regional Contest
World Championship of KDD Cup 2020

Master. 2021-present
2 papers in VLDB
National Scholarship
Outstanding Graduate of Beijing
Shen Yuan Medal Nomination Award

Master. 2021-present
Outstanding Graduate of Beihang University
First Prize of the National College Student Mathematics Competition

Master. 2021-present
Outstanding Graduate of Beijing
Master. 2021-present
2 papers in SIGKDD, DASFAA
National Scholarship
Gold Medal of ACM-ICPC EC-FINAL

Linghua Yang
Master. 2022-present
Outstanding Graduate of Beihang University
Merit Studnent of Beihang University
First Prize of "Lanqiao Cup"

Yuxiang Wang
Master. 2022-present
National Scholarship
Yifan Du
Master. 2022-present
Jilin University Third-Class Scholarship
Zeqi Zhu
Master. 2022-present
Outstanding Graduate of Jilin University
Hao Zhou
Master. 2022-present
Outstanding Student Cadre of Beijing
Outstanding Graduate of Beihang University

Haolong Yang
Master. 2022-present
National Inspiration Scholarship

Undergraduate Interns

Dakun Sun
Undergraduate. 2019-present
Second Prize of the National College Student Mathematics Competition
Lehao Qu
Undergraduate. 2019-present
Second Prize of "China Software Cup"
Tianlong Zhang
Undergraduate. 2019-present
Merit Student of Beihang University
Star of Beijing College

Wantong Chen
Undergraduate. 2019-present
Second Prize of MCM/ICM
First Prize of "Fengru Cup"

Yiming Niu
Undergraduate. 2019-present
First Prize of "China Software Cup"
First Prize of "Fengru Cup"

Zeheng Fan
Undergraduate. 2019-present
Bronze Medal of ACM-ICPC Regional Contest
First Prize of "Lanqiao Cup"

Yiman Zhong
Undergraduate. 2019-present
National Inspiration Scholarship
Second Prize of "Fengru Cup"

Junzhe Su
Undergraduate. 2019-present
Second Prize of "Lanqiao Cup"
Boyi Liu
Undergraduate. 2019-present
First Prize of "Fengru Cup"
Second Prize of "China Software Cup"

Alumni

Tianshu Song
Ph.D. 2016-2021
Qian Tao
Ph.D. 2016-2021
First Employment: Alibaba DAMO Academy
Ph.D. 2016-2022
First Employment: Alibaba DAMO Academy
Master. 2014-2017
Now: Post-doctor fellow, CSE
Linbin Wang
Master, 2017-2020
Now: Ph.D., CSE

2023

  1. [SIGMOD 2023] Yuxiang Zeng, Yongxin Tong, Lei Chen. "LiteHST: A Tree Embedding based Method for Similarity Search", to apprear in Proceedings of the 42nd ACM SIGMOD International Conference on Management of Data, Seattle, WA, USA, June 18-23, 2023.
  2. [ICDE 2023] Dingyuan Shi, Nan Zhou, Yongxin Tong, Zimu Zhou, Yi Xu, Ke Xu. "Collision-Aware Route Planning in Warehouses Made Efficient: A Strip-based Framework", to apprear in Proceedings of the 39th International Conference on Data Engineering, California, USA, April 3-7, 2023. PDF
  3. [ICDE 2023] Shuyue Wei, Yongxin Tong, Zimu Zhou, Qiaoyang Liu, Lulu Zhang, Yuxiang Zeng, Jieping Ye. "Towards Capacity-Aware Broker Matching: From Recommendation to Assignment", to apprear in Proceedings of the 39th International Conference on Data Engineering, California, USA, April 3-7, 2023. PDF

2022

  1. [TODS 2022] Yongxin Tong, Yuxiang Zeng, Zimu Zhou, Lei Chen, Ke Xu. "Unified Route Planning for Shared Mobility: An Insertion-based Framework", ACM Transactions on Database Systems, 47(1): 2:1-2:48, March 2022. PDF
  2. [TKDE 2022] Yongxin Tong, Dingyuan Shi, Yi Xu, Weifeng Lv, Zhiwei Qin, Xiaocheng Tang. "Combinatorial Optimization Meets Reinforcement Learning: Effective Taxi Order Dispatching at Large-Scale", IEEE Transactions on Knowledge and Data Engineering, 2022. PDF
  3. [TKDE 2022] Yexuan Shi, Yongxin Tong, Yuxiang Zeng, Zimu Zhou, Bolin Ding, Lei Chen. "Efficient Approximate Range Aggregation over Large-scale Spatial Data Federation", IEEE Transactions on Knowledge and Data Engineering, 2022. PDF
  4. [TKDE 2022] Yi Xu, Yongxin Tong, Yexuan Shi, Qian Tao, Ke Xu, Wei Li. "An Efficient Insertion Operator in Dynamic Ridesharing Services", IEEE Transactions on Knowledge and Data Engineering, 34(8): 3583-3596, August 2022. PDF [Invited as one of the Best Paper Nominations in ICDE 2019]
  5. [TKDE 2022] Hao Liu, Yongxin Tong, Jindong Han, Panpan Zhang, Xinjiang Lu, Hui Xiong. "Incorporating Multi-Source Urban Data for Personalized and Context-Aware Multi-Modal Transportation Recommendation", IEEE Transactions on Knowledge and Data Engineering, 34(2): 723-735, February 2022. PDF
  6. [PVLDB 2022] Yongxin Tong, Xuchen Pan, Yuxiang Zeng, Yexuan Shi, Chunbo Xue, Zimu Zhou, Xiaofei Zhang, Lei Chen, Yi Xu, Ke Xu, Weifeng Lv. "Hu-Fu: Efficient and Secure Spatial Queries over Data Federation", Proceedings of the VLDB Endowment, 15(6): 1159-1172, 2022. PDF Poster
  7. [PVLDB 2022] Xuchen Pan, Yongxin Tong, Chunbo Xue, Zimu Zhou, Junping Du, Yuxiang Zeng, Yexuan Shi, Xiaofei Zhang, Lei Chen, Yi Xu, Ke Xu, Weifeng Lv. "Hu-Fu: A Data Federation System for Secure Spatial Queries"(Demo paper), Proceedings of the VLDB Endowment, 2022. PDF Poster
  8. [SIGKDD 2022] Yansheng Wang, Yongxin Tong, Zimu Zhou, Ziyao Ren, Yi Xu, Guobin Wu, Weifeng Lv. "Fed-LTD: Towards Cross-Platform Ride Hailing via Federated Learning to Dispatch", in Proceedings of the 28th ACM SIGKDD Conference on Knowledge Discovery and Data Mining, Pages 4079–4089, Washington D.C., USA, August 14-18, 2022. PDF
  9. [SIGKDD 2022] Zhongnan Qu, Zimu Zhou, Yongxin Tong, Lothar Thiele. "p-Meta: Towards On-device Deep Model Adaptation", in Proceedings of the 28th ACM SIGKDD Conference on Knowledge Discovery and Data Mining, Pages 1441–1451, Washington D.C., USA, August 14-18, 2022. PDF
  10. [SIGMOD 2022] Yuxiang Zeng, Yongxin Tong, Lei Chen. "Faster and Better Solution to Embed Lp Metrics by Tree Metrics", in Proceedings of the 41st ACM SIGMOD International Conference on Management of Data, Pages 2135–2148, Philadelphia, PA, USA, June 12-17, 2022. PDF
  11. [ICDE 2022] Dingyuan Shi, Yongxin Tong, Zimu Zhou, Ke Xu, Wenzhe Tan, Hongbo Li. "Adaptive Task Planning for Large-Scale Robotized Warehouses", in Proceedings of the 38th International Conference on Data Engineering, Kuala Lumpur, Malaysia, May 9-12, 2022. PDF
  12. [DASFAA 2022] Ruisheng Zhang, Yansheng Wang, Zimu Zhou, Ziyao Ren, Yongxin Tong, Ke Xu. "Data Source Selection in Federated Learning: A Submodular Optimization Approach", in Proceedings of the 27th International Conference on Database Systems for Advanced Applications, Pages 606-614, Hyderabad, India, April 11-15, 2022. PDF

2021

  1. [TKDE 2021] Yongxin Tong, Yuxiang Zeng, Bolin Ding, Libin Wang, Lei Chen. "Two-Sided Online Micro-Task Assignment in Spatial Crowdsourcing", IEEE Transactions on Knowledge and Data Engineering, 33(5): 2295-2309, May 2021. PDF Code&Data
  2. [TIST 2021] Di Jiang, Yongxin Tong, Yuanfeng Song, Xueyang Wu, Weiwei Zhao, Jinhua Peng, Rongzhong Lian, Qian Xu, Qiang Yang. "Industrial Federated Topic Modeling", ACM Transactions on Intelligent Systems and Technology, 12(1): 2:1-2:22, January, 2021. PDF
  3. [IS 2021] Yexuan Shi, Yongxin Tong, Zhiyang Su, Di jiang, Zimu Zhou, Wenbin Zhang. "Federated Topic Discovery: A Semantic Consistent Approach", IEEE Intelligent Systems, 2021. PDF
  4. [CIKM 2021] Dawei Gao, Xiaoxi He, Zimu Zhou, Yongxin Tong, Lothar Thiele. "Pruning Meta-Trained Networks for On-Device Adaptation", in Proceedings of 30th ACM International Conference on Information and Knowledge Management, Gold Coast, Queensland, Australia, November 1-5, 2021. PDF
  5. [SIGKDD 2021] Dingyuan Shi, Yongxin Tong, Zimu Zhou, Bingchen Song, Weifeng Lv, Qiang Yang. "Learning to Assign: Towards Fair Task Assignment in Large-Scale Ride Hailing", in Proceedings of the 27th ACM SIGKDD Conference on Knowledge Discovery and Data Mining, Singapore, Singapore, August 14-18, 2021. PDF
  6. [SIGKDD 2021] Xiaocheng Tang, Fan Zhang, Zhiwei Qin, Yansheng Wang, Dingyuan Shi, Bingchen Song, Yongxin Tong, Hongtu Zhu, Jieping Ye. "Value Function is All You Need: A Unified Learning Framework for Ride Hailing Platforms", in Proceedings of the 27th ACM SIGKDD Conference on Knowledge Discovery and Data Mining, Singapore, Singapore, August 14-18, 2021. PDF
  7. [SIGKDD 2021] Xiaoxi He, Dawei Gao, Zimu Zhou, Yongxin Tong, Lothar Thiele. "Pruning-Aware Merging for Efficient Multitask Inference", in Proceedings of the 27th ACM SIGKDD Conference on Knowledge Discovery and Data Mining, Singapore, Singapore, August 14-18, 2021. PDF
  8. [MDM 2021] Qian Tao, Yongxin Tong, Shuyuan Li, Yuxiang Zeng, Zimu Zhou, Ke Xu. "A Differentially Private Task Planning Framework for Spatial Crowdsourcing", in Proceedings of 22nd IEEE International Conference on Mobile Data Management, Toronto, Canada, June 15-18, 2021. PDF [Best Paper Award]
  9. [MDM 2021] Hao Cheng, Shuyue Wei, Lingyu Zhang, Zimu Zhou, Yongxin Tong. "Engaging Drivers in Ride Hailing via Competition: A Case Study with Arena", in Proceedings of 22nd IEEE International Conference on Mobile Data Management, Toronto, Canada, June 15-18, 2021. PDF
  10. [SDM 2021] Kaixin Wang, Cheng Long, Yongxin Tong, Jie Zhang, Yi Xu. "Adaptive Holding for Online Bottleneck Matching with Delays", in Proceedings of the 2021 SIAM International Conference on Data Mining (SDM), Virtual Conference, April 29 - May 1, 2021. PDF
  11. [ICDE 2021] Yansheng Wang, Yongxin Tong, Dingyuan Shi, Ke Xu. "An Efficient Approach for Cross-Silo Federated Learning to Rank", inProceedings of the 37th International Conference on Data Engineering, Pages 648-659, Chania, Crete, Greece, April 19-22, 2021. PDF Slides
  12. [ICDE 2021] Yuxiang Zeng, Yongxin Tong, Lei Chen. "HST+: An Efficient Index for Embedding Arbitrary Metric Spaces", in Proceedings of the 37th International Conference on Data Engineering, Pages 1128-1139, Chania, Crete, Greece, April 19-22, 2021. PDF Slides Code&Data
  13. [JOS 2021] Dingyuan Shi, Yansheng Wang, Pengfei Zheng, Yongxin Tong. "Cross-Silo Federated Learning-to-Rank", Journal of Software, 32(3): 669-688, March 2021. (in Chinese) PDF

2020

  1. [TKDE 2020] Chen Jason Zhang, Lei Chen, H. V. Jagadish, Mengchen Zhang, Yongxin Tong. "Reducing Uncertainty of Schema Matching via Crowdsourcing with Accuracy Rates", IEEE Transactions on Knowledge and Data Engineering, 32(1): 135-151, 2020. PDF
  2. [VLDBJ 2020] Yongxin Tong, Zimu Zhou, Yuxiang Zeng, Lei Chen, Cyrus Shahabi. "Spatial Crowdsourcing: A Survey", The VLDB Journal, 29(1): 217–250, January 2020. PDF
  3. [PVLDB 2020] Yuxiang Zeng, Yongxin Tong, Yuguang Song, Lei Chen. "The Simpler The Better: An Indexing Approach for Shared-Route Planning Queries", Proceedings of the VLDB Endowment, 13(13): 3517-3530, 2020. PDF
  4. [DEB 2020] Yongxin Tong, Yansheng Wang, Dingyuan Shi. "Federated Learning in the Lens of Crowdsourcing", IEEE Data Engineering Bulletin, 43(3): 26-36, 2020. PDF
  5. [NeuroComp 2020] Yi Xu, Shuyue Wei, Yansheng Wang. "Privacy Preserving Online Matching on Ridesharing Platforms", Neurocomputing, 406(17), 371-377, September 2020. PDF
  6. [GEIN 2020] Tianshu Song, Ke Xu, Jiangneng Li, Yiming Li, Yongxin Tong. "Multi-skill Aware Task Assignment in Real-time Spatial Crowdsourcing", GeoInformatica, 24(1): 153–173, January 2020. PDF
  7. [GEIN 2020] Yiming Li, Jingzhi Fang, Yuxiang Zeng, Balz Maag, Yongxin Tong, Lingyu Zhang. "Two-sided Online Bipartite Matching in Spatial Data: Experiments and Analysis", GeoInformatica, 24(1): 175–198, January 2020. PDF Code&Data
  8. [DASFAA 2020] Conghui Tan, Di Jiang, Huaxiao Mo, Jinhua Peng, Yongxin Tong, Weiwei Zhao, Chaotao Chen, Rongzhong Lian, Yuanfeng Song, Qian Xu. "Federated Acoustic Model Optimization for Automatic Speech Recognition", in Proceedings of the 25th International Conference on Database Systems for Advanced Applications, Pages 771-774, Jeju, South Korea, September 24-27, 2020. PDF
  9. [SIGKDD 2020] Dawei Gao, Xiaoxi He, Zimu Zhou, Yongxin Tong, Ke Xu, Lothar Thiele. "Rethinking Pruning for Accelerating Deep Inference At the Edge", in Proceedings of the 26th ACM SIGKDD Conference on Knowledge Discovery and Data Mining, Pages 155-164, San Diego, California, USA, August 23-27, 2020. PDF
  10. [ICDE 2020] Qian Tao, Yongxin Tong, Zimu Zhou, Yexuan Shi, Lei Chen, Ke Xu. "Differentially Private Online Task Assignment in Spatial Crowdsourcing: A Tree-based Approach", in Proceedings of the 36th International Conference on Data Engineering, Pages 517-528, Dallas, Texas, USA, April 20-24, 2020. PDF
  11. [AAAI 2020] Yansheng Wang, Yongxin Tong, Dingyuan Shi. "Federated Latent Dirichlet Allocation: A Local Differential Privacy Based Framework", in Proceedings of the 34th AAAI Conference on Artificial Intelligence, Pages 6283-6290, New York, USA, January 7-12, 2020. PDF Poster

2019

  1. [TIST 2019] Qiang Yang, Yang Liu, Tianjian Chen, Yongxin Tong. "Federated Machine Learning: Concept and Applications", ACM Transactions on Intelligent Systems and Technology, 10(2): 12:1-12:19, February 2019. PDF
  2. [PVLDB 2019] Yuxiang Zeng, Yongxin Tong, Lei Chen. "Last-Mile Delivery Made Practical: An Efficient Route Planning Framework with Theoretical Guarantees", Proceedings of the VLDB Endowment, 13(3): 320-333, 2019. PDF Slides Code&Data
  3. [BigData 2019] Tianshu Song, Yongxin Tong, Shuyue Wei. "Profit Allocation for Federated Learning", in Proceedings of 2019 IEEE International Conference on Big Data, Pages 2577-2586, Los Angeles, CA, USA, December 9-12,2019. PDF Slides Code&Data Video
  4. [CIKM 2019] Di Jiang, Yuanfeng Song, Yongxin Tong, Xueyang Wu, Weiwei Zhao, Qian Xu, Qiang Yang. "Federated Topic Modeling", in Proceedings of the 28th ACM International Conference on Information and Knowledge Management, Pages 1071-1080, Beijing, China, November 3-7, 2019. PDF
  5. [CIKM 2019] Lingyu Zhang, Tianshu Song, Yongxin Tong, Zimu Zhou, Dan Li, Wei Ai, Lulu Zhang, Guobin Wu, Yan Liu, Jieping Ye. "Recommendation-based Team Formation for On-demand Taxi-calling Platforms", in Proceedings of the 28th ACM International Conference on Information and Knowledge Management, Pages 59-68, Beijing, China, November 3-7, 2019. PDF
  6. [SIGKDD 2019] Hao Liu, Yongxin Tong, Panpan Zhang, Xinjiang Lu, Jianguo Duan, Hui Xiong. "Hydra: A Personalized and Context-Aware Multi-Modal Transportation Recommendation System", in Proceedings of the 25th ACM SIGKDD Conference on Knowledge Discovery and Data Mining, Pages 2314-2324, Anchorage, Alaska, USA, August 4-8, 2019. PDF
  7. [ICDE 2019] Yi Xu, Yongxin Tong, Yexuan Shi, Qian Tao, Ke Xu, Wei Li. "An Efficient Insertion Operator in Dynamic Ridesharing Services", in Proceedings of the 35th International Conference on Data Engineering, Pages 1022-1033, Macau, China, April 8-12, 2019. PDF [Best Paper Nominations]
  8. [ICDE 2019] Yansheng Wang, Yongxin Tong, Cheng Long, Pan Xu, Ke Xu, Weifeng Lv. "Adaptive Dynamic Bipartite Graph Matching: A Reinforcement Learning Approach", in Proceedings of the 35th International Conference on Data Engineering, Pages 1478-1489, Macau, China, April 8-12, 2019. PDF
  9. [ICDE 2019] Libin Wang, Yongxin Tong, Chunming Hu, Lei Chen, Yiming Li. "Procrastination-aware Scheduling: A Bipartite Graph Perspective" (Poster Paper), in Proceedings of the 35th International Conference on Data Engineering, Pages 1650-1653, Macau, China, April 8-12, 2019. PDF
  10. [ICDE 2019] Yongxin Tong, Lei Chen, Zimu Zhou, H. V. Jagadish, Lidan Shou, Weifeng Lv. "SLADE: A Smart Large-Scale Task Decomposer in Crowdsourcing" (Extended Abstract), in Proceedings of the 35th International Conference on Data Engineering, Pages 2133-2134, Macau, China, April 8-12, 2019. PDF
  11. [AAAI 2019] Boming Zhao, Pan Xu, Yexuan Shi, Yongxin Tong, Zimu Zhou, Yuxiang Zeng. "Preference-Aware Task Assignment in On-demand Taxi Dispatching: An Online Stable Matching Approach", in Proceedings of the 33rd AAAI Conference on Artificial Intelligence, Pages 2245-2252, Honolulu, Hawaii, USA, January 27-February 1, 2019. PDF Code&Data
  12. [AAAI 2019] Pan Xu, Yexuan Shi, Hao Cheng, John Dickerson, Karthik Abinav Sankararaman, Aravind Srinivasan, Yongxin Tong, Leonidas Tsepenekas. "A Unified Approach to Online Matching with Conflict-Aware Constraints", in Proceedings of the 33rd AAAI Conference on Artificial Intelligence, Pages 2221-2228, Honolulu, Hawaii, USA, January 27-February 1, 2019. PDF
  13. [JOS 2019] Bin Cui, Jun Gao, Yongxin Tong, Jianqiu Xu, Dongxiang Zhang, Lei Zou. "Progress and Trend in Novel Data Management System", Journal of Software, 30(1): 164-193, January 2019. (in Chinese) PDF

2018

  1. [TKDE 2018] Yongxin Tong, Lei Chen, Zimu Zhou, H. V. Jagadish, Lidan Shou, Weifeng Lv. "SLADE: A Smart Large-Scale Task Decomposer in Crowdsourcing", IEEE Transactions on Knowledge and Data Engineering, 30(8): 1588-1601, August 2018. PDF
  2. [SIGSPATIAL Special 2018] Yongxin Tong, Zimu Zhou. "Dynamic Task Assignment in Spatial Crowdsourcing", SIGSPATIAL Special, 10(2): 18-25, July 2018. PDF
  3. [PVLDB 2018] Yongxin Tong, Yuxiang Zeng, Zimu Zhou, Lei Chen, Jieping Ye, Ke Xu. "A Unified Approach to Route Planning for Shared Mobility", Proceedings of the VLDB Endowment, 11(11): 1633-1646, 2018. PDF Slides Code&Data
  4. [SIGKDD 2018] Bowen Du, Yongxin Tong, Zimu Zhou, Qian Tao, Wenjun Zhou. "Demand-Aware Charger Planning for Electric Vehicle Sharing", in Proceedings of the 24th ACM SIGKDD Conference on Knowledge Discovery and Data Mining, Pages 1330-1338, London, United Kingdom, August 19-23, 2018. PDF
  5. [SIGMOD 2018] Yongxin Tong, Libin Wang, Zimu Zhou, Lei Chen, Bowen Du, Jieping Ye. "Dynamic Pricing in Spatial Crowdsourcing: A Matching-Based Approach", in Proceedings of the 37th ACM SIGMOD International Conference on Management of Data, Pages 773-788, Houston, TX, USA, June 10-15, 2018. PDF
  6. [DASFAA 2018] Qian Tao, Yuxiang Zeng, Zimu Zhou, Yongxin Tong, Lei Chen, Ke Xu. "Multi-worker-aware Task Planning in Real-time Spatial Crowdsourcing", in Proceedings of the 23rd International Conference on Database Systems for Advanced Applications, Pages 301-317, Gold Coast, Australia, May 21-24, 2018. PDF Code&Data
  7. [ICDE 2018] Yuxiang Zeng, Yongxin Tong, Lei Chen, Zimu Zhou. "Latency-oriented Task Completion via Spatial Crowdsourcing", in Proceedings of the 34th International Conference on Data Engineering, Pages 317-328, Paris, France, April 16-20, 2018. PDF Slides Code&Data
  8. [ICDE 2018] Zheng Liu, Lei Chen, Yongxin Tong. "Realtime Traffic Speed Estimation with Sparse Crowdsourced Data", in Proceedings of the 34th International Conference on Data Engineering, Pages 329-340, Paris, France, April 16-20, 2018. PDF

2017

  1. [DSE 2017] Dawei Gao, Yongxin Tong, Jieying She, Tianshu Song, Lei Chen, Ke Xu. "Top-k Team Recommendation and Its Variants in Spatial Crowdsourcing", Data Science and Engineering, 2(2): 136-150, June 2017. PDF
  2. [TKDE 2017] Rui Meng, Lei Chen, Yongxin Tong, Chen Jason Zhang. "Knowledge Base Semantic Integration Using Crowdsourcing", IEEE Transactions on Knowledge and Data Engineering, 29(5): 1087-1100, May 2017. PDF
  3. [NeuroComp 2017] Yong Chen, Hui Zhang, Yongxin Tong, Ming Lu. "Diversity Regularized Latent Semantic Match for Hashing", Neurocomputing, 230: 77–87, March 2017. PDF
  4. [PVLDB 2017] Yongxin Tong, Lei Chen, Cyrus Shahabi. "Spatial Crowdsourcing: Challenges, Techniques, and Applications", Proceedings of the VLDB Endowment, 10(12): 1988-1991, 2017. (Tutorial) PDF
  5. [PVLDB 2017] Yongxin Tong, Libin Wang, Zimu Zhou, Bolin Ding, Lei Chen, Jieping Ye, Ke Xu. "Flexible Dynamic Task Assignment in Real-Time Spatial Data", Proceedings of the VLDB Endowment, 10(11): 1334-1345, 2017. PDF Code&Data Poster
  6. [SIGKDD 2017] Yongxin Tong, Yuqiang Chen, Zimu Zhou, Lei Chen, Jie Wang, Qiang Yang, Jieping Ye, Weifeng Lv. "The Simpler The Better: A Unified Approach to Predicting Original Taxi Demands on Large-Scale Online Platforms", in Proceedings of the 23rd ACM SIGKDD Conference on Knowledge Discovery and Data Mining, Pages 1653-1662, Halifax, Nova Scotia, Canada, August 13-17, 2017. PDF
  7. [APWeb-WAIM 2017] Dawei Gao, Yongxin Tong, Yudian Ji, Ke Xu. "Team-Oriented Task Planning in Spatial Crowdsourcing", in Proceedings of the 1st Asia Pacific Web (APWeb) and Web-Age Information Management (WAIM) Joint Conference on Web and Big Data, Pages 41-56, Beijing, China, July 7-9, 2017. PDF
  8. [SIGMOD 2017] Jieying She, Yongxin Tong, Lei Chen, Tianshu Song. "Feedback-Aware Social Event-Participant Arrangement", in Proceedings of the 36th ACM SIGMOD International Conference on Management of Data, Pages 851-865, Chicago, IL, USA, May 14-19, 2017. PDF Slides Poster
  9. [ICDE 2017] Tianshu Song, Yongxin Tong, Libin Wang, Jieying She, Bin Yao, Lei Chen, Ke Xu. "Trichromatic Online Matching in Real-Time Spatial Crowdsourcing", in Proceedings of the 33rd International Conference on Data Engineering, Pages 1009-1020, Diego, California, USA, April 19-22, 2017. PDF Poster
  10. [JOS 2017] Tianshu Song, Yongxin Tong, Libin Wang, Ke Xu. "Online Task Assignment for Three Types of Objects under Spatial Crowdsourcing Environment", Journal of Software, 28(3): 611-630, March 2017. (in Chinese) PDF
  11. [JOS 2017] Yongxin Tong, Ye Yuan, Yurong Cheng, Lei Chen, Guoren Wang. "Survey on Spatiotemporal Crowdsourced Data Management Techniques", Journal of Software, 28(1): 35-58, January 2017. (in Chinese) PDF

2016

  1. [TOIS 2016] Di Jiang, Yongxin Tong, Yuanfeng Song. "Cross-Lingual Topic Discovery from Multilingual Search Engine Query Log", ACM Transactions on Information Systems, 35(2): 9:1-9:28, December 2016. PDF
  2. [WWWJ 2016] Yongxin Tong, Jieying She, Rui Meng. "Bottleneck-Aware Arrangement over Event-Based Social Networks: The Max-Min Approach", World Wide Web Journal, 19(6): 1151-1177, November 2016. PDF
  3. [TKDE 2016] Jieying She, Yongxin Tong, Lei Chen, Caleb Chen Cao. "Conflict-Aware Event-Participant Arrangement and its Variant for Online Setting", IEEE Transactions on Knowledge and Data Engineering, 28(9): 2281-2295, September 2016. PDF
  4. [WWWJ 2016] Yongxin Tong, Xiaofei Zhang, Lei Chen. "Tracking Frequent Items over Distributed Probabilistic Data", World Wide Web Journal, 19(4): 579-604, July 2016. PDF
  5. [PVLDB 2016] Yongxin Tong, Jieying She, Bolin Ding, Lei Chen, Tianyu Wo, Ke Xu. "Online Minimum Matching in Real-Time Spatial Data: Experiments and Analysis", Proceedings of the VLDB Endowment, 9(12): 1053-1064, 2016. PDF Poster
  6. [WAIM 2016] Dawei Gao, Yongxin Tong, Jieying She, Tianshu Song, Lei Chen, Ke Xu. "Top-k Teams Recommendation in Spatial Crowdsourcing", in Proceedings of the 17th International Conference on Web-Age Information Management, Pages 191-204, Nanchang, Jiangxi, China, June 3-5, 2016. PDF [Best Paper Award]
  7. [WAIM 2016] Qinyi Wang, Jieying She, Tianshu Song, Yongxin Tong, Lei Chen, Ke Xu. "Adjustable Time-Window-based Event Detection on Twitter", in Proceedings of the 17th International Conference on Web-Age Information Management, Pages 265-278, Nanchang, Jiangxi, China, June 3-5, 2016. PDF
  8. [ICDE 2016] Yongxin Tong, Jieying She, Bolin Ding, Libin Wang, Lei Chen. "Online Mobile Micro-Task Allocation in Spatial Crowdsourcing", in Proceedings of the 32nd International Conference on Data Engineering, Pages 49-60, Helsinki, Finland, May 16-20, 2016. PDF Slides Code&Data Poster

2015

  1. [JCST 2015] Yongxin Tong, Jieying She, Lei Chen. "Towards Better Understanding of App Functions", Journal of Computer Science and Technology, 30(5): 1130-1140, September 2015. PDF
  2. [DAPD 2015] Xiaofei Zhang, Yongxin Tong, Lei Chen, Min Wang, Shicong Feng. "Locality-aware Allocation of Multi-dimensional Correlated Files on the Cloud Platform", Distributed and Parallel Databases: An International Journal, 33(3): 353-380, September 2015. PDF
  3. [JCST 2015] Yongxin Tong, Lei Chen, Jieying She. "Mining Frequent Itemsets in Correlated Uncertain Databases", Journal of Computer Science and Technology, 30(4): 696-712, July 2015. PDF
  4. [ICDM 2015] Rui Meng, Yongxin Tong, Lei Chen, Caleb Chen Cao. "CrowdTC: Crowdsourced Taxonomy Construction", in Proceedings of the 15th International Conference on Data Mining, Pages 913-918, Atlantic City, USA, November 11-14, 2015. PDF
  5. [SIGMOD 2015] Jieying She, Yongxin Tong, Lei Chen. "Utility-aware Social Event-Participant Planning", in Proceedings of the 34th ACM SIGMOD International Conference on Management of Data, Pages 1629-1643, Melbourne, Australia, May 31- June 4, 2015. PDF Slides Poster
  6. [ICDE 2015] Jieying She, Yongxin Tong, Lei Chen, Caleb Chen Cao. "Conflict-Aware Event-Participant Arrangement", in Proceedings of the 31st International Conference on Data Engineering, Pages 735-746, Seoul, Korea, April 13-16, 2015. PDF Slides Poster
  7. [ICDE 2015] Chen Jason Zhang, Lei Chen, Yongxin Tong, Zheng Liu. "Cleaning Uncertain Data with a Noisy Crowd", in Proceedings of the 31st International Conference on Data Engineering, Pages 6-17, Seoul, Korea, April 13-16, 2015. PDF
  8. [SSEPM 2015] Yongxin Tong, Rui Meng, Jieying She. "On Bottleneck-Aware Arrangement for Event-Based Social Networks", in Proceedings of the 1st International Workshop on Scalable Social Event Processing and Management, Pages 735-746, Seoul, Korea, April 13, 2015. (Invited) PDF

2014 and Before

  1. [PVLDB 2014] Chen Jason Zhang, Yongxin Tong, Lei Chen. "Where To: Crowd-Aided Path Selection", Proceedings of the VLDB Endowment, 7(14): 2005-2016, 2014. PDF
  2. [PVLDB 2014] Zhao Chen, Rui Fu, Ziyuan Zhao, Zheng Liu, Leihao Xia, Lei Chen, Peng Cheng, Caleb Chen Cao, Yongxin Tong, Chen Jason Zhang. "gMission: A General Spatial Crowdsourcing Platform" (Demo Paper), Proceedings of the VLDB Endowment, 7(13): 1629-1632, 2014. PDF [Excellent Demonstration Award]
  3. [CIKM 2014] Yongxin Tong, Xiaofei Zhang, Caleb Chen Cao, Lei Chen. "Efficient Probabilistic Supergraph Search over Large Uncertain Graphs", in Proceedings of the 23rd ACM International Conference on Information and Knowledge Management, Pages 809-818, Shanghai, China, November 3-7, 2014. PDF
  4. [CIKM 2014] Chen Jason Zhang, Lei Chen, Yongxin Tong. "MaC: A Probabilistic Framework For Query Answering With Machine-Crowd Collaboration", in Proceedings of the 23rd ACM International Conference on Information and Knowledge Management, Pages 11-20, Shanghai, China, November 3-7, 2014. PDF
  5. [SIGKDD 2014] Yongxin Tong, Caleb Chen Cao, Lei Chen. "TCS: Efficient Topic Discovery over Crowd-oriented Service Data", in Proceedings of the 19th ACM SIGKDD Conference on Knowledge Discovery and Data Mining, Pages 861-870, New York, USA, August 24-27, 2014. PDF
  6. [ICDE 2014] Yongxin Tong, Caleb Chen Cao, Chen Jason Zhang, Yatao Li, Lei Chen. "CrowdCleaner: Data Cleaning for Multi-Version Data on the Web via Crowdsourcing" (Demo Paper), in Proceedings of the 30th International Conference on Data Engineering, Pages 1182-1185, Chicago, IL, USA, March 31-April 4, 2014. PDF Poster
  7. [SIGKDD 2013] Caleb Chen Cao, Yongxin Tong, Lei Chen, H. V. Jagadish. "WiseMarket: A New Paradigm for Managing Wisdom of Online Social Users", in Proceedings of the 19th ACM SIGKDD Conference on Knowledge Discovery and Data Mining, Pages 455-463, Chicago, Illinois, August 11-14, 2013. PDF Slides
  8. [ICDE 2013] Xiaofei Zhang, Lei Chen, Yongxin Tong, Min Wang. "EAGRE: Towards Scalable I/O Efficient SPARQL Query Evaluation on the Cloud", in Proceedings of the 29th International Conference on Data Engineering, Pages 565-576, Brisbane, Australia, April 8-11, 2013. PDF
  9. [PVLDB 2012] Yongxin Tong, Lei Chen, Yurong Cheng, Philip S. Yu. "Mining Frequent Itemsets over Uncertain Databases", Proceedings of the VLDB Endowment, 5(11): 1650-1661, 2012. PDF Slides Executable Code and Datasets
  10. [PVLDB 2012] Caleb Chen Cao, Jieying She, Yongxin Tong, Lei Chen. "Whom to Ask? Jury Selection for Decision Making Tasks on Micro-blog Services", Proceedings of the VLDB Endowment, 5(11): 1495-1506, 2012. PDF Slides
  11. [SIGKDD 2012] Yongxin Tong, Lei Chen, Philip S. Yu. "UFIMT: An Uncertain Frequent Itemset Mining Toolbox" (Demo Paper), in Proceedings of the 18th ACM SIGKDD Conference on Knowledge Discovery and Data Mining, Pages 1508-1511, Beijing, China, August 12-16, 2012. PDF Poster
  12. [ICDE 2012] Yongxin Tong, Lei Chen, Bolin Ding. "Discovering Threshold-Based Frequent Closed Itemsets over Probabilistic Data", in Proceedings of the 28th International Conference on Data Engineering, Pages 270-281, Washington, DC, USA, April 1-5, 2012. PDF Slides
2023
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2016
2015
2014 and Before