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Jianliang Xu
 
Head and Professor
 
Department of Computer Science (Map)
Hong Kong Baptist University
Kowloon Tong, Hong Kong
 
 
Tel: +852 3411 5808     Fax: +852 3411 7892
Email:

 
Prof. Xu joined the Computer Science Department of Hong Kong Baptist University (HKBU) after he received his PhD degree in Computer Science from Hong Kong University of Science and Technology in 2002. He obtained his BEng degree in Computer Science and Engineering from Zhejiang University, Hangzhou, China in 1998. Prior to that, he received his secondary education from Suzhou High School from 1991 to 1994. Prof. Xu has been a visiting scholar at Pennsylvania State University, University Park (in Summer 2005) and a senior visiting fellow at Fudan University (in Winter 2009). He serves as a director of the Blockchain and FinTech Lab and leads the Database Research Group at Hong Kong Baptist University.

Prof. Xu has more than 200 publications as edited books and proceedings, invited book chapters, and technical papers in refereed journals and conferences including SIGMOD, VLDB, KDD, MobiSys, ICDE, TODS, TKDE, and VLDBJ. He has been invited to serve on organizing and program committees for dozens of international conferences including SIGMOD, VLDB, ICDE, and WWW. Prof. Xu was a recipient of HKBU President's Award for Outstanding Performance in Scholarly Work (2017), HKBU President's Award for Outstanding Performance in Teaching (2018), and VLDB Distinguished Reviewer Award (2019). He is a senior member of IEEE and CCF, and a member of IEEE Technical Committee on Data Engineering and CCF Technical Committee on Databases. He has been an Associate Editor of IEEE Transactions on Knowledge and Data Engineering (TKDE) and Proceedings of VLDB Endowment (PVLDB).
 

Looking for PhD students and Postdoc/senior researchers; please email me your CV and supporting documents
Current Research Interests:
      Big Data, Blockchain, Mobile Computing, Data Security and Privacy
 
Recent News:
Recent Activities:
Student Achievements:
Research Grants:
  • USHARE: User-controlled Secure Data Sharing and Analytics with Blockchain and Trusted Computing Technologies (PI, RGC/CRF, C2004-21GF, 2022-2025)
  • FEDA: Federated Data Analytics using Hardware Enclaves (PI, RGC/GRF, HKBU12202221, 2022-2024)
  • SlimChain: Stateless Blockchains for Scalable Transaction Processing (PI, RGC/GRF, HKBU12201520, 2021-2023)
  • vChain+: Towards Integrity-Assured Search in Scalable Blockchain Systems (PI, RGC/GRF, HKBU12200819, 2020-2022)
  • vPubSub: Verifiable Publish/Subscribe Queries over Outsourced Data Streams (PI, RGC/GRF, HKBU12201018, 2019-2021)
  • KAIS: Keyword-based Spatial Influence Queries (PI, RGC/GRF, HKBU12200817, 2018-2020)
  • AUQS: Authenticated Analytical Query Services on Set-Valued Data (PI, RGC/GRF, HKBU12244916, 2017-2019)
  • EyeBB+: Privacy-Preserving Large-Scale Indoor Location Tracking using Wearable Devices (PI, ITS/288/15FX, 2016-2018)
  • SORS: Social-Aware Ridesharing in Location-Based Services (PI, RGC/GRF, HKBU12201615, 2016-2018)
  • AQUC: Authenticated Queries for Cloud-Assisted Multi-Source Data Collection (PI, RGC/GRF, HKBU12202414, 2014-2017)
  • iGPS: Privacy-Preserving Geo-Proximity Services in Location-based Social Networks (PI, RGC/GRF, HKBU211512, 2012-2015)
  • FlashTX: Transaction Management for Flash-based Database Systems: Protocols, Implementations and Optimizations (PI, RGC/GRF, HKBU211510, 2010-2013)
  • QUPOS: Query Processing in Flash-Based Storage-Centric Sensor Networks (PI, RGC/GRF, HKBU210808, 2009-2011)
  • DEFACTO: Data-Centric Filter Management and Routing Optimization for Distributed Monitoring Systems (PI, RGC/GRF, HKBU211307, 2008-2010)
  • iPDA: Privacy-Preserving Location-based Data Access in Mobile Environments (PI, RGC/GRF, HKBU211206, 2006-2009)
  • ECOQUAD: Energy-Conserving Quality-Aware Data Collection in Wireless Sensor Networks (PI, RGC/GRF, HKBU211505, 2005-2008)
Selected Recent Publications (Complete List, DBLP, Google Scholar):
  • T. N. Chan, P. L. Ip, L. H. U, B. Choi, and J. Xu. "SAFE: A Share-and-Aggregate Bandwidth Exploration Framework for Kernel Density Visualization." Proc. the 47th International Conference on Very Large Data Bases (PVLDB '22), Sydney, Australia, 2022.
  • X. Liao*, Q. Liu*, J. Jiang, X. Huang, J. Xu, and B. Choi. "Distributed D-core Decomposition over Large Directed Graphs." Proc. the 47th International Conference on Very Large Data Bases (PVLDB '22), Sydney, Australia, 2022. (*equal contribution)
  • T. N. Chan, L. H. U, B. Choi, and J. Xu. "SLAM: Efficient Sweep Line Algorithms for Kernel Density Visualization." Proc. the ACM SIGMOD International Conference on Management of Data (SIGMOD '22), Philadelphia, USA, June 2022.
  • C. Xu*, C. Zhang*, J. Xu, and J. Pei. "SlimChain: Scaling Blockchain Transactions through Off-Chain Storage and Parallel Processing." Proc. the 47th International Conference on Very Large Data Bases (PVLDB '21), Copenhagen, Denmark, 2021. (*equal contribution)
  • Q. Liu, X. Zhu, X. Huang, and J. Xu. "Local Algorithms for Distance-generalized Core Decomposition over Large Dynamic Graphs." Proc. the 47th International Conference on Very Large Data Bases (PVLDB '21), Copenhagen, Denmark, 2021.
  • Z. Peng, C. Xu, H. Wang, J. Huang, J. Xu, and X. Chu. "P2B-Trace: Privacy-Preserving Blockchain-based Contact Tracing to Combat Pandemics," Proc. the ACM SIGMOD International Conference on Management of Data (SIGMOD '21), Xi'an, China, June 2021.
  • Y. Huang, J. Tang, Q. Cong, A. Lim, and J. Xu. "Do the Rich Get Richer? Fairness Analysis for Blockchain Incentives," Proc. the ACM SIGMOD International Conference on Management of Data (SIGMOD '21), Xi'an, China, June 2021.
  • Q. Liu, M. Zhao, X. Huang, J. Xu, and Y. Gao. "Truss-based Community Search over Large Directed Graphs." Proc. the ACM SIGMOD International Conference on Management of Data (SIGMOD '20), Portland, OR, USA, June 2020.
  • C. Xu, C. Zhang, and J. Xu. "vChain: Enabling Verifiable Boolean Range Queries over Blockchain Databases." Proc. the ACM SIGMOD International Conference on Management of Data (SIGMOD '19), Amsterdam, Netherlands, 2019. (eprint, code)
  • C. Zhang, C. Xu, J. Xu, Y. Tang, and B. Choi. "GEM^2-Tree: A Gas-Efficient Structure for Authenticated Range Queries in Blockchain." Proc. the 35th IEEE International Conference on Data Engineering (ICDE '19), Macau SAR, China, 2019.
  • C. Xu, J. Xu, H. Hu, and M. H. Au. "When Query Authentication Meets Fine-Grained Access Control: A Zero-Knowledge Approach." Proc. of the ACM SIGMOD International Conference on Management of Data (SIGMOD '18), Houston, TX, June 2018.