Leong Hou U, Ryan  余亮豪
Associate Professor
Coordinator of Student Exchange Programs

Academic Qualifications | Research | Teaching | Selected Publications | Professional Affiliations | Technical Activities | Supervisions | Contact Details

Academic Qualifications
Research

Research Interests

I am a member of data engineering research group.


Teaching

M.Sc. Courses

B.Sc. Courses
Selected Publications

Journal Articles

  1. Leong Hou U, Junjie Zhang, Kyriakos Mouratidis, Ye Li: Continuous Top-k Monitoring on Document Streams. IEEE Trans. Knowl. Data Eng. 29(5): 991-1003 (2017) [link]
  2. Yuhong Li, Leong Hou U, Man Lung Yiu, Zhiguo Gong: Efficient discovery of longest-lasting correlation in sequence databases. VLDB J. 25(6): 767-790 (2016) [link]
  3. Bailong Liao, Leong Hou U, Man Lung Yiu, Zhiguo Gong: Beyond Millisecond Latency kNN Search on Commodity Machine. IEEE Trans. Knowl. Data Eng. 27(10): 2618-2631 (2015) [pdf]
  4. Ngai Meng Kou, Leong Hou U, Yiyang Yang, and Zhiguo Gong: Travel Topic Analysis: A Mutually Reinforcing Method for Geo-tagged Photos, Geoinformatica, to appear. [pdf]
  5. Shen Ge, Leong Hou U, Nikos Mamoulis, David W. Cheung: Dominance relationship analysis with budget constraints. Knowl. Inf. Syst. (KAIS) 42(2):409-440 (2015)
  6. Yiyang Yang, Zhiguo Gong, Leong Hou U: Identifying Points of Interest using heterogenous Features. ACM TIST (TIST) 5(4):68 (2014). [pdf]
  7. Leong Hou U, Hong Jun Zhao, Man Lung Yiu, Yuhong Li, Zhiguo Gong: Towards Online Shortest Path Computation. IEEE Trans. Knowl. Data Eng. (TKDE) 26(4):1012-1025 (2014) [pdf]
  8. Shen Ge, Leong Hou U, Nikos Mamoulis, David W. Cheung: Efficient All Top-k Computation - A Unified Solution for All Top-k, Reverse Top-k and Top-m Influential Queries. IEEE Trans. Knowl. Data Eng. 25(5): 1015-1027 (2013)
  9. Leong Hou U, Kyriakos Mouratidis, Man Lung Yiu, and Nikos Mamoulis. Optimal Matching between Spatial Datasets under Capacity Constraints. ACM Transactions on Database Systems, 35(2):44 pages, April 2010.
  10. Leong Hou U, Kyriakos Mouratidis, and Nikos Mamoulis. Continuous Spatial Assignment of Moving Users. VLDB Journal, 19(2):141-160, 2010.
  11. Leong Hou U, Nikos Mamoulis, and Man Lung Yiu. Computation and Monitoring of Exclusive Closest Pairs. IEEE Trans. Knowl. Data Eng., 20(12):1641-1654, 2008.

Book Chapters

  1. Leong Hou U, Optimal Matching between Spatial Datasets. Encyclopedia of GIS (to appear)

Refereed Conference Proceedings

  1. Yiyang Yang, Zhiguo Gong, Qing Li, Leong Hou U, Ruichu Cai, Zhifeng Hao, A Robust Noise Resistant Algorithm for POI Identification from Flickr Data, IJCAi 2017 (to appear).
  2. Ngai Meng Kou, Yan Li, Hao Wang, Leong Hou U, and Zhiguo Gong: Crowdsourced top-k queries by confidence-aware pairwise judgments, SIGMOD 2017 (to appear). [project page]
  3. Yuhong Li, Bo Tang, Leong Hou U, Man Lung Yiu, Zhiguo Gong: Fast Subsequence Search on Time Series Data. EDBT 2017: 514-517.
  4. Shanshan Wu, Huaizhong Lin, Leong Hou U, Yunjun Gao, Dongming Lu: Finding Frequent Items in Time Decayed Data Streams. APWeb (2) 2016: 17-29.
  5. Bo Tang, Man Lung Yiu, Yuhong Li, Leong Hou U: Exploit Every Cycle: Vectorized Time Series Algorithms on Modern Commodity CPUs. ADMS/IMDM@VLDB 2016: 18-39.
  6. Ngai Meng Kou, Leong Hou U, Nikos Mamoulis, Yuhong Li, Ye Li, and Zhiguo Gong: A Topicbased Reviewer Assignment System. In Proceedings of VLDB2015 (demo paper).
  7. Ngai Meng Kou, Leong Hou U, Nikos Mamoulis, and Zhiguo Gong: Weighted Coverage based Reviewer Assignment. In Proceedings of SIGMOD2015. [project page]
  8. Yuhong Li, Leong Hou U, Man Lung Yiu, and Zhiguo Gong: Quick-Motif: An Efficient and Scalable Framework for Exact Motif Discovery. In Proceedings of ICDE2015. [project page]
  9. Yuhong Li, Leong Hou U, Man Lung Yiu, Zhiguo Gong: Discovering Longest-lasting Correlation in Sequence Databases. PVLDB 6(14):1666-1677 (2013) [pdf]
  10. Yu Tang, Leong Hou U, Yilun Cai, Nikos Mamoulis, Reynold Cheng: Earth Mover's Distance based Similarity Search at Scale. PVLDB 7(4):313-324 (2013) [pdf]
  11. Yiyang Yang, Zhiguo Gong, and Leong Hou U. Identifying points of interest by self-tuning clustering. In SIGIR, 2011.
  12. Man Lung Yiu, Leong Hou U, Simonas Saltenis, and Kostas Tzoumas. Efficient proximity detection among mobile users via self-tuning policies. PVLDB, 3(1):985–996, 2010.
  13. Leong Hou U, Nikos Mamoulis, Klaus Berberich, and Srikanta J. Bedathur. Durable top-k search in document archives. In SIGMOD Conference, pages 555–566, 2010.
  14. Leong Hou U, Nikos Mamoulis, and Kyriakos Mouratidis. A fair assignment algorithm for multiple preference queries. VLDB, 2(1):1054-1065, 2009.
  15. Leong Hou U, Nikos Mamoulis, and Kyriakos Mouratidis. Efficient evaluation of multiple preference queries. In ICDE, pages 1251-1254, 2009.
  16. Leong Hou U, Man Lung Yiu, Kyriakos Mouratidis, and Nikos Mamoulis. Capacity constrained assignment in spatial databases. In SIGMOD Conference, pages 15-28, 2008.

    Check here for my DBLP record.

    I am looking for research assistants, PhD students, and postdocs who intend to study on premier research (cf. Arnetminer or CCF) in Data Engineering.


Professional Affiliations
Technical Activities

Reviewer for journals

International Conference Steering/Organization Committee

International Conference Technical Program/Review Committee and Session Chair


Supervisions

Reserach Students

Final Year Projects


Contact Details

Faculty of Science and Technology
University of Macau, E11
Avenida da Universidade, Taipa,
Macau, China

Room: E11-4021
Telephone: (853) 8822-4493
Fax: (853) 8822-2426
Email: ryanlhu