Dr. CHOI, Byron Koon Kau

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蔡冠球博士
B.Eng., MSE, Ph.D.
Associate Head and Associate Professor, Department of Computer Science

https://www.comp.hkbu.edu.hk/~bchoi/



AboutDr. Choi obtained his Ph.D. and MSE degrees in Computer and Information Science from the University of Pennsylvania (UPenn) in 2006 and 2002, respectively. He received his BEng degree in Computer Engineering from the Hong Kong University of Science and Technology (HKUST). Dr. Choi was an Assistant Professor with Nanyang Technological University (NTU), 2005-2008. He was a research associate at the University of Edinburgh in 2005. He visited HKUST theoretical computer science group in 2003. His publications appear in IEEE TKDE, VLDBJ, ACM SIGMOD, PVLDB/VLDB, IEEE ICDE, WWW, CIKM, AAAI, and IJCAI before.Dr. Choi is awarded a distinguished program committee member from ACM SIGMOD 2021. Dr. Choireceived the best reviewers award from ACM CIKM 2021. Hereceived the distinguished reviewer award from PVLDB 2019. Dr. Choi is the recipient of the HKBU President's Award for Outstanding Young Researcher 2016.Dr. Choi is the director of a Croucher Foundation Advanced Study Institute (ASI) titled "Frontiers in Big Data Graph Research" 2015. Dr. Choi serves as the ACM SIGMOD information co-director since September 2021.


Research InterestsVisual graph query processing
Time series analysis
Database security
View update and incremental maintenance

Selected PublicationsG. Li, B. Choi, J.Xu, S. S. Bhowmick, K-P Chun and G. L-H. Wong. ShapeNet: A Shapelet-Neural Network Approach for Multivariate Time Series Classification. In Proceedings of the 35th AAAI Conference on Artificial Intelligence (AAAI'21), 2021. pages 8375-8383.
J. Jiang, B. Choi, S. S. Bhowmick and J. Xu.A Generic Ontology Framework for Indexing Keyword Search on Massive Graphs.IEEE Transactions on Knowledge and Data Engineering (TKDE) 33(6):2322-2336,2021.
G. Li, B. Choi, J. Xu, S. S. Bhowmick, K-P Chun and G. L-H. Wong.Efficient Shapelet Discovery for Time Series Classification.IEEE Transactions on Knowledge and Data Engineering (TKDE), 2020. (to appear)
J. Jiang, X. Huang,B. Choi, J. Xu, S. S. Bhowmick and L. Xu.PPKWS: An Efficient Framework for Keyword Search on Public-Private Networks. In Proceedings of the 36thIEEE International Conference on Data Engineering (ICDE '20), pages 457-468,2020.
P. Yi,B. Choi, S. S. Bhowmick and J. Xu. AutoG: A Visual Query Autocompletion Framework for Graph Databases.The VLDB Journal(VLDBJ) 26(3):347-372,2017.
Y. Peng, B. Choi, B. He, S. Zhou, R. Xu, X. Yu. VColor: A Practical Vertex-cut Based Approach for Coloring Large Graphs. In Proceedings of the 32nd IEEE International Conference on Data Engineering (ICDE '16), pages 97-108, 2016.
Z. Fan,B. Choi, Q. Chen, J. Xu, H. Hu and S. S. Bhowmick. Structure-Preserving Subgraph Query Services.IEEE Transactions on Knowledge and Data Engineering (TKDE), 27(8):2275-2290, 2015
Y. Peng, Z. Fan, B. Choi, J. Xu and S. S. Bhowmick. Authenticated Subgraph Similarity Search in Outsourced Graph Databases. IEEE Transactions on Knowledge and Data Engineering (TKDE) 27(7):1838-1860, 2015.
D. Wu, B. Choi, J. Xu and C. S. Jensen. "Authentication of Moving Top-k Spatial Keyword Queries."IEEE Transactions on Knowledge and Data Engineering (TKDE), 27(4):922-935, 2014
Y. Peng, B. Choi, J. Xu, H. Hu, and S. S. Bhowmick. "Side-Effect Estimation: A Filtering Approach to the View Update Problem."IEEE Transactions on Knowledge and Data Engineering (TKDE), 26(9):2307-2322, 2014.
J. Deng, B. Choi, J. Xu, H. Hu, and S. S. Bhowmick. "Incremental Maintenance of the Minimum Bisimulation of Cyclic Graphs."IEEE Transactions on Knowledge and Data Engineering (TKDE), 25(11):2536-2550, 2013.