Research Interests

Distributed Object Based Systems
- Fragmentation of data to improve on overall performance by reducing the amount of data that need to be moved between sites or replicated in order to answer user queries.
- Dynamic re-fragmentation of data to accommodate dynamic changes in data structures and application requirements.
- Metadata management and object data dictionary.
Data Warehousing Systems
- Aggregate partitioning and maintenance, clustering and organization.
- Techniques for refining, modifying data extracted into Warehouse from operational data stores (data scrubbing).
- others
DataMining
- Tools for selecting, grouping and visualizing discovered knowledge.
- others
Database Transaction Processing
- Concurrency control and recovery issues in object based systems and interoperability in multidatabase systems.