Wesley W. Chu, Distinguished Professor
Inference Approach for Data Security and Privacy (ISP), Cooperative XML (CoXML), Medical Digital Library (KMeX), CoBase, KMeD
>From 1964 to 1966, Dr. Chu worked on the design of large-scale computers at IBM in San Jose, California. From 1966 to 1969, his research focused on computer communications and distributed databases at Bell Laboratories in Holmdel, New Jersey. He joined the University of California, Los Angeles in 1969. He has authored and co-authored more than 100 articles and has edited three textbooks on information technology and also edited a reference book (co-edited with T.Y. Lin) on data mining.
During the first two decades of his research career, he focused on computer communication and networks, distributed databases, memory management, and real-time distributed processing systems. Dr. Chu has made fundamental contributions to the understanding of statistical multiplexing, which is widely used in current computer communications systems and which influenced the development of the asynchronous transfer mode (ATM) networks. He also did pioneering work in file allocation, as well as directory design for distributed databases and task partitioning in real-time distributive systems. This work has influenced and has been applied in the design and development of Domain Name Servers for the web as well as in current peer-to-peer (P2P) and grid systems. Dr. Chu was awarded IEEE fellow for his contribution in these areas.
During the past decade, his research interests have evolved to include intelligent (knowledge-based) information systems and knowledge acquisition for large information systems. He developed techniques to cluster similar objects based on their attributes and represented this knowledge into Type Abstraction Hierarchies to provide guidance in approximate matching of similar objects. Using his methodology for relaxing query constraints, Dr. Chu led the development of CoBase, a cooperative database system for structured data, and KMed, a knowledge-based multi-media medical image system. CoBase has been successfully used in logistic applications to provide approximate matching of objects.
Together with the medical school staff, the KMed project has been extended to the development of a Medical Digital Library, which consists of structured data, text documents, and images. The system provides approximate content-matching and navigation and serves as a cornerstone for future paperless hospitals. In addition, Dr. Chu conducts research on data mining of large information sources, knowledge-based text retrieval, and extending the relaxation methodology to XML (CoXML) for information exchange and approximate XML query answering in the Web environment. In recent years, he also research in the areas of using inference techniques for data security and privacy protection (ISP).
Dr. Chu has received best paper awards at the 19th International Conference on Conceptual Modeling in 2000 for his work (coauthored with D. Lee) on XML/Relational schema transformation. He and his students have received best paper awards at the American Medical Information Association Congress in 2002 and 2003 for indexing and retrieval of medical free text, and have also been awarded a "Certificate of Merit" for the Medical Digital Library demo system at the 89th Annual Meeting of the Radiological Society of North America in 2003. He is also the recipient of the IEEE Computer Society 2003 Technical Achievement Award for his contributions to Intelligent Information Systems.
Dr. Chu was the past ACM SIGCOMM chairman from 1973 to 1976, an associate editor for IEEE Transactions on Computers for Computer Networking and Distributed Processing Systems (1978 to 1982) and he received a meritorious award for his service to IEEE. He was the workshop co-chair of the IEEE First International Workshop on Systems Management (1993) and received a Certificate of Appreciation award for his service. He served as technical program chairs for SIGCOMM (1975), VLDB (1986), Information Knowledge Sharing (2003), and ER (2004), and was the general conference chair of ER (1997). He has served as guest editor and associate editor for several journals related to intelligent information systems.