2023

doi dblp
S2TUL: A Semi-Supervised Framework for Trajectory-User Linking
Liwei Deng | Hao Sun | Yan Zhao | Shuncheng Liu | Kai Zheng
Proceedings of the Sixteenth ACM International Conference on Web Search and Data Mining, WSDM 2023, Singapore, 27 February 2023 - 3 March 2023

doi dblp
Adversarial Autoencoder for Unsupervised Time Series Anomaly Detection and Interpretation
Xuanhao Chen | Liwei Deng | Yan Zhao | Kai Zheng
Proceedings of the Sixteenth ACM International Conference on Web Search and Data Mining, WSDM 2023, Singapore, 27 February 2023 - 3 March 2023

2022

doi dblp
Sequential-Knowledge-Aware Next POI Recommendation: A Meta-Learning Approach
Yue Cui | Hao Sun | Yan Zhao | Hongzhi Yin | Kai Zheng
2022 Volume 40 Issue 2

doi dblp
Hierarchical Hyperedge Embedding-Based Representation Learning for Group Recommendation
Lei Guo | Hongzhi Yin | Tong Chen | Xiangliang Zhang | Kai Zheng
2022 Volume 40 Issue 1

doi dblp
Introduction to the Special Issue on Intelligent Trajectory Analytics: Part I
Kai Zheng | Yong Li | Cyrus Shahabi | Hongzhi Yin
2022 Volume 13 Issue 1

doi dblp
Introduction to the Special Issue on Intelligent Trajectory Analytics: Part II
Kai Zheng | Yong Li | Cyrus Shahabi | Hongzhi Yin
2022 Volume 13 Issue 3

doi dblp
MARINA: An MLP-Attention Model for Multivariate Time-Series Analysis
Jiandong Xie | Yue Cui | Feiteng Huang | Chao Liu | Kai Zheng
Proceedings of the 31st ACM International Conference on Information & Knowledge Management, Atlanta, GA, USA, October 17-21, 2022

doi dblp
RISE: A Velocity Control Framework with Minimal Impacts based on Reinforcement Learning
Yuyang Xia | Shuncheng Liu | Xu Chen | Zhi Xu | Kai Zheng | Han Su
Proceedings of the 31st ACM International Conference on Information & Knowledge Management, Atlanta, GA, USA, October 17-21, 2022

doi dblp
HeGA: Heterogeneous Graph Aggregation Network for Trajectory Prediction in High-Density Traffic
Shuncheng Liu | Xu Chen | Ziniu Wu | Liwei Deng | Han Su | Kai Zheng
Proceedings of the 31st ACM International Conference on Information & Knowledge Management, Atlanta, GA, USA, October 17-21, 2022

doi dblp
Efficient Learning with Pseudo Labels for Query Cost Estimation
Shuncheng Liu | Xu Chen | Yan Zhao | Jin Chen | Rui Zhou | Kai Zheng
Proceedings of the 31st ACM International Conference on Information & Knowledge Management, Atlanta, GA, USA, October 17-21, 2022

doi dblp
Task Assignment with Federated Preference Learning in Spatial Crowdsourcing
Jiaxin Liu | Liwei Deng | Hao Miao | Yan Zhao | Kai Zheng
Proceedings of the 31st ACM International Conference on Information & Knowledge Management, Atlanta, GA, USA, October 17-21, 2022

doi dblp
Efficient Trajectory Similarity Computation with Contrastive Learning
Liwei Deng | Yan Zhao | Zidan Fu | Hao Sun | Shuncheng Liu | Kai Zheng
Proceedings of the 31st ACM International Conference on Information & Knowledge Management, Atlanta, GA, USA, October 17-21, 2022

doi dblp
Learning Recommenders for Implicit Feedback with Importance Resampling
Jin Chen | Defu Lian | Binbin Jin | Kai Zheng | Enhong Chen
WWW '22: The ACM Web Conference 2022, Virtual Event, Lyon, France, April 25 - 29, 2022

doi dblp
Fast Variational AutoEncoder with Inverted Multi-Index for Collaborative Filtering
Jin Chen | Defu Lian | Binbin Jin | Xu Huang | Kai Zheng | Enhong Chen
WWW '22: The ACM Web Conference 2022, Virtual Event, Lyon, France, April 25 - 29, 2022

doi dblp
Outlier Detection for Streaming Task Assignment in Crowdsourcing
Yan Zhao | Xuanhao Chen | Liwei Deng | Tung Kieu | Chenjuan Guo | Bin Yang | Kai Zheng | Christian S. Jensen
WWW '22: The ACM Web Conference 2022, Virtual Event, Lyon, France, April 25 - 29, 2022

2021

doi dblp
Community-based influence maximization in location-based social network
Xuanhao Chen | Liwei Deng | Yan Zhao | Xiaofang Zhou | Kai Zheng
2021 Volume 24 Issue 6

doi dblp
Implicit relation-aware social recommendation with variational auto-encoder
Qiqi Zheng | Guanfeng Liu | An Liu | Zhixu Li | Kai Zheng | Lei Zhao | Xiaofang Zhou
2021 Volume 24 Issue 5

doi dblp
Open-world knowledge graph completion with multiple interaction attention
Lei Niu | Chenpeng Fu | Qiang Yang | Zhixu Li | Zhigang Chen | Qingsheng Liu | Kai Zheng
2021 Volume 24 Issue 1

doi dblp
Predicting Human Mobility with Reinforcement-Learning-Based Long-Term Periodicity Modeling
Shuo Tao | Jingang Jiang | Defu Lian | Kai Zheng | Enhong Chen
2021 Volume 12 Issue 6

doi dblp
Learning to Ask Appropriate Questions in Conversational Recommendation
Xuhui Ren | Hongzhi Yin | Tong Chen | Hao Wang | Zi Huang | Kai Zheng
SIGIR '21: The 44th International ACM SIGIR Conference on Research and Development in Information Retrieval, Virtual Event, Canada, July 11-15, 2021

doi dblp
Historical Inertia: A Neglected but Powerful Baseline for Long Sequence Time-series Forecasting
Yue Cui | Jiandong Xie | Kai Zheng
CIKM '21: The 30th ACM International Conference on Information and Knowledge Management, Virtual Event, Queensland, Australia, November 1 - 5, 2021

doi dblp
Task Allocation with Geographic Partition in Spatial Crowdsourcing
Guanyu Ye | Yan Zhao | Xuanhao Chen | Kai Zheng
CIKM '21: The 30th ACM International Conference on Information and Knowledge Management, Virtual Event, Queensland, Australia, November 1 - 5, 2021

doi dblp
PATROL: A Velocity Control Framework for Autonomous Vehicle via Spatial-Temporal Reinforcement Learning
Zhi Xu | Shuncheng Liu | Ziniu Wu | Xu Chen | Kai Zeng | Kai Zheng | Han Su
CIKM '21: The 30th ACM International Conference on Information and Knowledge Management, Virtual Event, Queensland, Australia, November 1 - 5, 2021

doi dblp
Task Assignment with Worker Churn Prediction in Spatial Crowdsourcing
Ziwei Wang | Yan Zhao | Xuanhao Chen | Kai Zheng
CIKM '21: The 30th ACM International Conference on Information and Knowledge Management, Virtual Event, Queensland, Australia, November 1 - 5, 2021

doi dblp
PeriodicMove: Shift-aware Human Mobility Recovery with Graph Neural Network
Hao Sun | Changjie Yang | Liwei Deng | Fan Zhou | Feiteng Huang | Kai Zheng
CIKM '21: The 30th ACM International Conference on Information and Knowledge Management, Virtual Event, Queensland, Australia, November 1 - 5, 2021

doi dblp
Into the Unobservables: A Multi-range Encoder-decoder Framework for COVID-19 Prediction
Yue Cui | Chen Zhu | Guanyu Ye | Ziwei Wang | Kai Zheng
CIKM '21: The 30th ACM International Conference on Information and Knowledge Management, Virtual Event, Queensland, Australia, November 1 - 5, 2021

doi dblp
Automated Creative Optimization for E-Commerce Advertising
Jin Chen | Ju Xu | Gangwei Jiang | Tiezheng Ge | Zhiqiang Zhang | Defu Lian | Kai Zheng
WWW '21: The Web Conference 2021, Virtual Event / Ljubljana, Slovenia, April 19-23, 2021

2020

doi dblp
Temporal paths discovery with multiple constraints in attributed dynamic graphs
Anqi Zhao | Guanfeng Liu | Bolong Zheng | Yan Zhao | Kai Zheng
2020 Volume 23 Issue 1

doi dblp
Preface to the Special Issue on Graph Data Management in Online Social Networks
Kai Zheng | Guanfeng Liu | Mehmet A. Orgun | Junping Du
2020 Volume 23 Issue 2

doi dblp
Multi-modal Knowledge Graphs for Recommender Systems
Rui Sun | Xuezhi Cao | Yan Zhao | Junchen Wan | Kun Zhou | Fuzheng Zhang | Zhongyuan Wang | Kai Zheng
CIKM '20: The 29th ACM International Conference on Information and Knowledge Management, Virtual Event, Ireland, October 19-23, 2020

2019

doi dblp
Differential private collaborative Web services QoS prediction
An Liu | Xindi Shen | Zhixu Li | Guanfeng Liu | Jiajie Xu | Lei Zhao | Kai Zheng | Shuo Shang
2019 Volume 22 Issue 6

doi dblp
Towards secure and truthful task assignment in spatial crowdsourcing
Dongjun Zhai | Yue Sun | An Liu | Zhixu Li | Guanfeng Liu | Lei Zhao | Kai Zheng
2019 Volume 22 Issue 5

doi dblp
Spatio-temporal top-k term search over sliding window
Lisi Chen | Shuo Shang | Bin Yao | Kai Zheng
2019 Volume 22 Issue 5

doi dblp
Searching activity trajectory with keywords
Bolong Zheng | Kai Zheng | Peter Scheuermann | Xiaofang Zhou | Quoc Viet Hung Nguyen | Chenliang Li
2019 Volume 22 Issue 3

doi dblp
An efficient method for top-k graph based node matching
Guanfeng Liu | Qun Shi | Kai Zheng | An Liu | Zhixu Li | Xiaofang Zhou
2019 Volume 22 Issue 3

doi dblp
Context-aware graph pattern based top-k designated nodes finding in social graphs
Guanfeng Liu | Qun Shi | Kai Zheng | Zhixu Li | An Liu | Jiajie Xu
2019 Volume 22 Issue 2

doi dblp
Personalized Route Description Based On Historical Trajectories
Han Su | Guanglin Cong | Wei Chen | Bolong Zheng | Kai Zheng
Proceedings of the 28th ACM International Conference on Information and Knowledge Management, CIKM 2019, Beijing, China, November 3-7, 2019

2018

doi dblp
Context-aware trust network extraction in large-scale trust-oriented social networks
Guanfeng Liu | Yi Liu | An Liu | Zhixu Li | Kai Zheng | Yan Wang | Xiaofang Zhou
2018 Volume 21 Issue 3

doi dblp
Semantic-aware top-k spatial keyword queries
Zhihu Qian | Jiajie Xu | Kai Zheng | Pengpeng Zhao | Xiaofang Zhou
2018 Volume 21 Issue 3

doi dblp
SharkDB: an in-memory column-oriented storage for trajectory analysis
Bolong Zheng | Haozhou Wang | Kai Zheng | Han Su | Kuien Liu | Shuo Shang
2018 Volume 21 Issue 2

doi dblp
GeoMF++: Scalable Location Recommendation via Joint Geographical Modeling and Matrix Factorization
Defu Lian | Kai Zheng | Yong Ge | Longbing Cao | Enhong Chen | Xing Xie
2018 Volume 36 Issue 3

2017

doi dblp
A context-aware approach for trustworthy worker selection in social crowd
Yang Zhao | Guanfeng Liu | Kai Zheng | An Liu | Zhixu Li | Xiaofang Zhou
2017 Volume 20 Issue 6

doi dblp
Popularity-aware spatial keyword search on activity trajectories
Kai Zheng | Bolong Zheng | Jiajie Xu | Guanfeng Liu | An Liu | Zhixu Li
2017 Volume 20 Issue 4

doi dblp
Preface to the special issue on big data search and mining
Kai Zheng | Feifei Li | Kyuseok Shim
2017 Volume 20 Issue 5

doi dblp
Ranking weighted clustering coefficient in large dynamic graphs
Xuefei Li | Lijun Chang | Kai Zheng | Zi Huang | Xiaofang Zhou
2017 Volume 20 Issue 5

doi dblp
Semantic-aware Query Processing for Activity Trajectories
Huiwen Liu | Jiajie Xu | Kai Zheng | Chengfei Liu | Lan Du | Xian Wu
Proceedings of the Tenth ACM International Conference on Web Search and Data Mining, WSDM 2017, Cambridge, United Kingdom, February 6-10, 2017

doi dblp
Interactive Spatial Keyword Querying with Semantics
Jiabao Sun | Jiajie Xu | Kai Zheng | Chengfei Liu
Proceedings of the 2017 ACM on Conference on Information and Knowledge Management, CIKM 2017, Singapore, November 06 - 10, 2017

doi dblp
CNN-IETS: A CNN-based Probabilistic Approach for Information Extraction by Text Segmentation
Meng Hu | Zhixu Li | Yongxin Shen | An Liu | Guanfeng Liu | Kai Zheng | Lei Zhao
Proceedings of the 2017 ACM on Conference on Information and Knowledge Management, CIKM 2017, Singapore, November 06 - 10, 2017

doi dblp
Destination-aware Task Assignment in Spatial Crowdsourcing
Yan Zhao | Yang Li | Yu Wang | Han Su | Kai Zheng
Proceedings of the 2017 ACM on Conference on Information and Knowledge Management, CIKM 2017, Singapore, November 06 - 10, 2017

2016

doi dblp
Exploiting Dining Preference for Restaurant Recommendation
Fuzheng Zhang | Nicholas Jing Yuan | Kai Zheng | Defu Lian | Xing Xie | Yong Rui
Proceedings of the 25th International Conference on World Wide Web, WWW 2016, Montreal, Canada, April 11 - 15, 2016

2015

doi dblp
Making Sense of Spatial Trajectories
Xiaofang Zhou | Kai Zheng | Hoyoung Jeung | Jiajie Xu | Shazia Wasim Sadiq
Proceedings of the 24th ACM International Conference on Information and Knowledge Management, CIKM 2015, Melbourne, VIC, Australia, October 19 - 23, 2015

doi dblp
A Novelty-Seeking based Dining Recommender System
Fuzheng Zhang | Kai Zheng | Nicholas Jing Yuan | Xing Xie | Enhong Chen | Xiaofang Zhou
Proceedings of the 24th International Conference on World Wide Web, WWW 2015, Florence, Italy, May 18-22, 2015

2014

doi dblp
SharkDB: An In-Memory Column-Oriented Trajectory Storage
Haozhou Wang | Kai Zheng | Jiajie Xu | Bolong Zheng | Xiaofang Zhou | Shazia Wasim Sadiq
Proceedings of the 23rd ACM International Conference on Conference on Information and Knowledge Management, CIKM 2014, Shanghai, China, November 3-7, 2014