Although data stored in XML is of increasing importance, most existing data repositories are still managed by relational database systems. In light of this, recent XML database re...
William M. Shui, Franky Lam, Damien K. Fisher, Ray...
To effectively support today's global economy, database systems need to manage data in multiple languages simultaneously. While current database systems do support the storag...
One of the most powerful features of SQL is the use of nested queries. Most research work on the optimization of nested queries focuses on aggregate subqueries. However, the solut...
Text documents often embed data that is structured in nature. This structured data is increasingly exposed using information extraction systems, which generate structured relation...
Conventional operators for data retrieval are either based on exact matching or on total order relationship among elements. Neither of them is appropriate to manage complex data, s...