Semi-join reducers were introduced in the late seventies as a means to reduce the communication costs of distributed database systems. Subsequent work in the eighties showed, howe...
Konrad Stocker, Donald Kossmann, Reinhard Braumand...
The problem of information integration is discussed in the context of answering a query over the web. Querying the web requires that information from different web and other sourc...
We present the latest release of the Ontology Pre-Processor Language, a language for querying and modifying Description Logic knowledge bases expressed in OWL. We briefly describe ...
The SQL queries produced in XML-to-SQL query translation are often unnecessarily complex, even for simple input XML queries. In this paper we argue that relational systems can do ...
The explosive growth of location-detection devices (e.g., GPS-like devices and handheld devices) along with wireless communications and mobile databases results in realizing locati...