On Supporting Context-Aware Preferences in Relational Database Systems.
Kostas Stefanidis, Evaggelia Pitoura, Panos Vassiliadis · 2005
A context-aware system is a system that uses context to provide relevant information or services to its users. While there has been a variety of context middleware infrastructures and context-aware applications, little work has been done in integrating context into database management systems. In this paper, we consider a preference system that facilitates context-aware OLAP queries, that is OLAP queries whose result depends on the context at the time of their submission. We propose using data cubes to store the dependencies between context and database relations and OLAP techniques for the manipulation of context-aware queries.