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Proactive Hoarding in Location-Based Systems

title Proactive Hoarding in Location-Based Systems
creator Bürklen, Susanne
Marrón, Pedro José
Rothermel, Kurt
date 2006-06-12
language eng
identifier  http://www.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2006-25&engl=1
description The proliferation of mobile devices and the fact that high-bandwidth connectivity is not available everywhere, has led to the development of hoarding algorithms. The aim of these algorithms is to select and prefetch data, mobile users might access when they are weakly connected in the future. The data is selected based on context information of users, such as their location. In this paper, we present a hoarding approach for semi-structured information items and introduce our Bounded Path Search algorithm (BPS) for the computation of the hoard list. We show by means of experimental evaluation that BPS outperforms existing hoarding techniques that use standard graph search algorithms by a factor of 2.7 in terms of hoard cache hit ratio.
publisher University of Stuttgart : Collaborative Research Center SFB 627 (Nexus: World Models for Mobile Context-Based Systems)
Springer-Verlag
type Text
Article in Proceedings
source In: Proceedings of the Second Workshop on Context Awareness for Proactive Systems (CAPS 2006), pp. 1-11
contributor Institut für Parallele und Verteilte Systeme, Verteilte Systeme
subject Information Storage and Retrieval (CR H.3)
Hoarding
location-based systems
relation Lecture Notes in Computer Science