Artikel in Tagungsband INPROC-2008-18

Nicklas, Daniela; Grossmann, Matthias; Minguez, Jorge; Wieland, Mattias: Adding High-level Reasoning to Efficient Low-level Context Management: a Hybrid Approach.
In: Proceedings of the Sixth Annual IEEE Conference on Pervasive Computing and Communications : PerCom'08 Workshops, in 5th IEEE PerCom Workshop on Context Modeling and Reasoning; Hongkong, 17.-21. March 2008.
Universität Stuttgart : Sonderforschungsbereich SFB 627 (Nexus: Umgebungsmodelle für mobile kontextbezogene Systeme).
IEEE Computer Society; Order Number E3113, S. 447-452, englisch.
Los Alamitos - California, Washington, Tokyo: IEEE Computer Society, 17. März 2008.
ISBN: 0-7695-3113-X; 978-0-7695-3113-7.
Artikel in Tagungsband (Workshop-Beitrag).
CR-Klassif.D.1.6 (Logic Programming)
D.2.11 (Software Engineering Software Architectures)
H.2.8 (Database Applications)
Keywordshigher level context; pervasive computing; ubiquitous computing; context-aware applications

Rule-based context reasoning is an expressive way to define situations, which are crucial for the implementation of many context-aware applications. Along the scenario of the Conference Guard application we show how this reasoning can be done both by leveraging an efficient context management (realized by the Nexus platform) and by a generic rule based service. We present the architecture of the Nexus semantic service, which uses the underlying definition of a low-level context model (the Nexus Augmented World Model) to carry out rules given in first order logic. We realize this service in a straight forward manner by using state-of-the-art software components (the Jena 2 framework) and evaluate the number of instances this approach can handle. Our first experiences show that a pre-selection of instances is necessary if the semantic service should work on a large-scale context model.

Volltext und
andere Links
CoMoRea Website
Nexus Project
KontaktDaniela Nicklas
Abteilung(en)Universität Stuttgart, Institut für Parallele und Verteilte Systeme, Anwendersoftware
Universität Stuttgart, Institut für Architektur von Anwendungssystemen
Projekt(e)SFB-627, E1 (Universität Stuttgart, Institut für Architektur von Anwendungssystemen)
SFB-627, B1 (Universität Stuttgart, Institut für Parallele und Verteilte Systeme, Anwendersoftware)
Eingabedatum8. April 2008