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Short Biography
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I am a PhD candidate in the Department of Computer Science and Engineering at University at Buffalo, SUNY.
Currently, I am working under the supervision of Dr. Jan Chomicki.
I received my B.Eng. degree from Shanghai Jiao Tong University in 2002 and M.Sc. degree from National University of Singapore in 2004.
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Research
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My research interests are: preference queries and their applications, management of uncertain data, pervasive computing and logical foundations of databases. My current projects includes
- Uncertainty in preference queries: top-k queries in probabilistic databases and their application in pervasive data management;
- Non-1NF preference queries: query languages for preferences over complex objects and the corresponding computational problems.
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Publications
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- X. Zhang and J. Chomicki. On the Semantics and Evaluation of Top-k Queries in Probabilistic Databases. Second International Workshop on Ranking in Databases (DBRank), in conjunction with ICDE, Cancun, Mexico, April 2008. Full version available as CSE Technical Report 2007-13.
- X. Zhang, L.H. Yang, M.L. Lee and W. Hsu. Scaling SDI Systems via Query Clustering and Aggregation. International Conference on Database Systems for Advanced Applications (DASFAA), Jeju, Korea, March 2004.
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Professional Activities
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Reviewer: SIGMOD, PODS, VLDB, ICDE, Information Processing Letters
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Curriculum Vitae
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pdf format.
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