Engineering Experts

Leong Hou U, Ryan

Associate Professor
Computer and information science
University of Macau


Leong Hou U, Ryan is associate professor at University of Macau. He received his Bachelor's degree in Computer Science and Information Engineering from National Chi Nan University, Taiwan and Master in E-Commerce Technology from University of Macau, Macau. He earned his Ph.D. in Computer Science from The University of Hong Kong.

Research Interest

Spatial and spatio-temporal Databases, Crowdsourcing, Advanced Query Processing, Web Data Management, Information Retrieval, Data Mining, Optimization Problems, Mixture model


  • 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)

  • 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)

  • 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)

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