SHASHI K. GADIA
(gadia@cs.iastate.edu)
Associate Professor of Computer Science
Current Research: The term dimensional data covers databases for data over a dimensional space such as time, space and user beliefs. A uniform approach for dimensional data assures upward compatibility. Thus when one migrates from lower forms of dimensional data to higher forms, e.g. ordinary data to spatio-temporal data, the existing application software would not need to be redeveloped. Such a framework necessitates careful study of pragmatic issues such as database optimization.
Representative Publications:
"A pattern matching language for spatio-temporal databases" (with T. Cheng). Proceedings of the Third International Conference on Information and Knowledge Management, 1994, pp. 288-295.
"Object identity and dimension alignment in parametric databases" (with T. Cheng, S. Nair). Proceedings of the Second International Conference on Information and Knowledge Management, 1993, pp. 615-624.
"Relational database systems with zero information-loss" (with G. Bhargava). IEEE Transactions on Knowledge and Data Engineering, Vol 5, 1993, pp. 76-87.
Gadia, Shashi K., Sunil S. Nair and Yiu-Cheong Poon. "Incomplete information in relational temporal databases" (with S. Nair, Y. Poon). Proceedings of the 18th International Conference on Very Large Databases, pp. 395-406, 1992. "Algebraic optimization in a relational model for temporal databases" (with S. Nair). Proceedings of the first International conference on Information and Knowledge Management, pp 169-176, 1992.
"A generalized model for a relational temporal database" (with C. Yeung). ACM SIGMOD Conference on Management of Data, 1988, pp 251-259.
"A Homogeneous Relational Model and Query Languages for Temporal Databases." ACM Transactions on Database Systems, Vol. 14, 1988, pp 418-448.
"A Query Language for a Homogeneous Temporal Database" (with J. Vaishnav). Proc. Fourth Annual ACM SIGACT-SIGMOD Symposium on Principles of Database Systems, 1985, pp 51-56.