Professor
Ph.D., Computer Engineering and Science, Case Western Reserve U., 1989 |
Contact Info
| Phone: |
(618)453-6040 |
| Fax: |
(618)453-6044 |
| Email: |
hou@cs.siu.edu |
| Mail Address : |
Department of Computer Science
Southern Illinois University Carbondale
Carbondale, IL 62901
Mailcode 4511 |
| Office: |
Faner 2134 |
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Current Research Interests:
Statistical databases, query optimization, data stream processing, spatial data structures.
Dr. Hou's research is mainly in the area of database, including XML, data streams, query size estimation, transaction management, and data mining. His current focus is on XML query processing, where he seeks to find efficient query evaluation algorithms for XML data and devise synopses for accurate query result size estimation. He is also interested in clustering streaming data and data mining over data streams, which require quite different techniques from those used in traditional static database environments.
References:
F. Yan, W-C. Hou, Z. Jiang, C. Luo, Q. Zhu, "Selectivity Estimation of Range Queries Based on Data Density Approximation via Cosine Series", to appear in Data and Knowledge Engineering (DKE), Elsevier (accepted in June, 2007).
C. Luo, Z. Jiang, W-C. Hou, F. Yan, C. Wang, "A Relational Model for XML Structural Joins and Their Size Estimations", to appear in Knowledge and Information Systems (KAIS) journal (accepted in April 2007).
Q. Zhu, J. Haridas, W-C. Hou, "Query Optimization via Contention Space Partitioning and Cost Error Controlling in Dynamic Multidatabase Systems", to appear in Distributed and Parallel Databases (accepted in August 2006).
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Teaching Area
Database Systems
Operating Systems
Data Structures
Computer Architecture
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