|
Short Biography
|
|
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.
|
|
|
Research
|
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.
See my PhD proposal for more details.
|
|
|
Publications
|
- X. Zhang and J. Chomicki. Preference Queries over Sets. IEEE International Conference on Data Engineering (ICDE), Hannover, Germany, April 2011.
- X. Zhang and J. Chomicki. Semantics and Evaluation of Top-k Queries in Probabilistic Databases. Distributed and Parallel Databases (DAPD) Journal, Special Issue on Ranking in Databases, page 67-126.
[pdf]
- G. Cormode, L. Golab, F. Korn, A. McGregor, D. Srivastava and X. Zhang. Estimating the Confidence of Conditional Functional Dependencies. Special Interest Group on Management of Data (SIGMOD), Providence, Rhode Island, USA, June 2009. [pdf] [slides]
- X. Zhang and J. Chomicki. Profiling Sets for Preference Querying. Proc. International Workshop on Logic in Databases (LID), Rome, Italy, May 2008. [pdf]
- 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. [pdf]
- 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. [pdf]
|
|
|
Professional Activities
|
|
Reviewer: SIGMOD, PODS, VLDB, ICDE, Information Processing Letters
|
|
|
Teaching
|
I am/was the TA for the following courses:
- Spring 09 - CSE305 Introduction to Programming Languages
Recitation: week 2, week 3, week 4, week 5, week 6, week 7, week 8, week 9 (rmiexample), week 10, week 11 (erlexample), week 12, week 13
- Fall 08 - CSE396 Introduction to the Theory of Computation
|
|
|
Curriculum Vitae
|
|
pdf format.
|
|
