Λεπτομέρειες

ΕίδοςΔημοσίευση
ΚωδικόςTR-2008-6
ΤίτλοςA Model for Context Aware Relational Databases
ΣυγγραφέαςIoannis N. Roussos, Timos Sellis
Έτος2008
Λέξεις κλειδιάcontext, context aware information, data model, relational databases
ΠερίληψηContext aware information, i.e. information that depends on a set of external parameters like location, time, user’s profile etc, is commonplace in real world data management scenarios. There is a growing need to uniformly represent, store and manage information entities with different instances (values) or even different schemas (attributes) under varying circumstances as defined by context. Considerable effort has been directed towards context acquisition from sources and context modeling. However, so far, no data model or language for context aware data has been proposed which can be considered a natural analogue to the relational model or algebra. In this work, we argue about the need for a conceptual model for context aware information and propose a context aware data model based on the definition of multi-schema relations. Finally, we present a set of operations that extend the relational algebra in order to incorporate the notion of context aware data management in the relational model.
ΚατηγορίαOther
ΔημοσίευσηTechnical Report
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