This paper introduces schema tuple queries and argues for their suitability in representing knowledge over standard relational databases. Schema tuple queries are queries that ret...
Provenance, or records of the origin, context, custody, derivation or other historical information about a (digital) object, has recently become an important research topic in a n...
We present Stretch `n' Shrink, a query design framework that explicitly takes into account user preferences about the desired answer size, and subsequently modifies the query...
Abstract. Information concerning the origin of data (that is, its provenance) is important in many areas, especially scientific recordkeeping. Currently, provenance information mu...
Abstract. Often, XML documents stored in an XML database must be transformed by an XSL processor into a client-specific format before queries are submitted. In applications where X...