The Web has been flooded with highly heterogeneous data sources that freely offer their data to the public. Careful design and compliance to standards is a way to cope with the he...
Metadata management is an essential factor in data warehousing. In data warehousing environments, data is transformed and integrated into a single database from multiple autonomou...
This paper describes a service-oriented approach for the integration of third-party external applications and resources into an existing open source eLearning environment. We detai...
It is agreed upon that topological relations ore of great importance regarding to GIS data sets consistency. A lot of errors that can be found in GIS data sets are coming from a l...
Abstract Appears in Proceedings of the Thirteenth Symposium on Principles of Database Systems, 1994 Ashish Gupta Yehoshua Sagivy Je rey D. Ullman Jennifer Widom Dept. of Computer S...
Ashish Gupta, Yehoshua Sagiv, Jeffrey D. Ullman, J...