@inproceedings {INPROC-2002-11,
author = {Uwe Kubach and Kurt Rothermel},
title = {{Estimating the Benefit of Location-Awareness for Mobile Data Management Mechanisms}},
booktitle = {Proceedings of the International Conference on Pervasive Computing 2002},
address = {Heidelberg},
publisher = {Springer-Verlag},
institution = {Universit{\"a}t Stuttgart : Sonderforschungsbereich SFB 627 (Nexus: Umgebungsmodelle f{\"u}r mobile kontextbezogene Systeme), Germany},
pages = {1--14},
type = {Konferenz-Beitrag},
month = {August},
year = {2002},
keywords = {location awareness; mobile data management; evaluation},
language = {Englisch},
cr-category = {H.2 Database Management},
ee = {ftp://ftp.informatik.uni-stuttgart.de/pub/library/ncstrl.ustuttgart_fi/INPROC-2002-11/INPROC-2002-11.pdf},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte H{\"o}chstleistungsrechner, Verteilte Systeme},
abstract = {With the increasing popularity of mobile computing devices, the need to access
information in mobile environments has also grown rapidly. In order to support
such mobile information accesses, location-based services and mobile
information systems often rely on location-aware data management mechanisms
like location-aware caching, data dissemination or prefetching. As we explain
in this paper, the location-awareness of such mechanisms is only useful, if the
accessed information is location-dependent, i.e. if the probability with that a
certain information object is accessed depends on the user’s location. Although
the location-dependency of the accessed information is crucial for the
efficiency of location-aware data management mechanisms and the benefit they
can get out of their location-awareness, no metric to measure the
location-dependency of information has been proposed so far. In this paper, we
describe such a metric together with a second one for a further important
characteristic of mobile information accesses, the so-called focus.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2002-11&engl=0}
}
@inproceedings {INPROC-2001-18,
author = {Uwe Kubach and Mario Hegele and Kurt Rothermel},
title = {{A Simulation Framework for Mobile, Location-Dependent Information Access}},
booktitle = {Proceedings of the 6th IEEE Symposium on Computers and Communications (ISCC 2001)},
address = {Hammamet, Tunesia},
publisher = {not available},
institution = {Universit{\"a}t Stuttgart : Sonderforschungsbereich SFB 627 (Nexus: Umgebungsmodelle f{\"u}r mobile kontextbezogene Systeme), Germany},
pages = {506--511},
type = {Konferenz-Beitrag},
month = {Juli},
year = {2001},
language = {Englisch},
cr-category = {H Information Systems},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte H{\"o}chstleistungsrechner, Verteilte Systeme},
abstract = {With the increasing pervasiveness of mobile computing devices, the need to
access information in mobile environments has grown rapidly. Consequently, many
mechanisms, e.g. broadcast dissemination, hoarding, or specialized caching
mechanisms have been developed to overcome the disadvantages of wireless
communication systems, which are usually used to access the information. To
evaluate such mechanisms a simulation tool is needed that simulates both the
users' mobility and their information access patterns. Since most existing user
models either model only the mobility or the information access, we developed a
new model that covers both aspects. Based on this model, we realized a flexible
framework that allows to simulate all aspects of a mobile information access.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2001-18&engl=0}
}
@inproceedings {INPROC-1999-17,
author = {Uwe Kubach and Kurt Rothermel},
title = {{A Universal, Location-Aware Hoarding Mechanism}},
booktitle = {Proceedings of the International Symposium on Handheld and Ubiquitous Computing (HUC '99)},
address = {Karlsruhe, Germany},
publisher = {(not available)},
institution = {Universit{\"a}t Stuttgart : Sonderforschungsbereich SFB 627 (Nexus: Umgebungsmodelle f{\"u}r mobile kontextbezogene Systeme), Germany},
pages = {377--379},
type = {Konferenz-Beitrag},
month = {September},
year = {1999},
language = {Englisch},
cr-category = {H Information Systems},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte H{\"o}chstleistungsrechner, Verteilte Systeme},
abstract = {Hoarding is an often used technique to overcome the disadvantages of wireless
wide area communication. The basic idea of hoarding is to transfer information
to a mobile device before it is actually accessed on the device. The main
problem is to decide which information will be needed on the devices. We
propose a hoarding mechanism which exploits the fact that the information a
user accesses depends on his/her geographic location.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-1999-17&engl=0}
}
@article {ART-2001-03,
author = {Uwe Kubach and Kurt Rothermel},
title = {{Ein Hoarding-Verfahren f{\"u}r ortsbezogene Informationen}},
journal = {Informatik - Forschung und Entwicklung},
publisher = {Springer, to appear},
type = {Artikel in Zeitschrift},
month = {Januar},
year = {2001},
language = {Deutsch},
cr-category = {H Information Systems},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte H{\"o}chstleistungsrechner, Verteilte Systeme},
abstract = {Mit der zunehmenden Verbreitung mobiler Endger{\"a}te w{\"a}chst auch der Bedarf in
mobilen Umgebungen auf entfernt gespeicherte Informationen zuzugreifen. Da
dieser Informationszugriff meist {\"u}ber drahtlose Netzwerke erfolgt, treten in
mobilen Informationssystemen h{\"a}ufig Probleme, wie geringe Bandbreite, gro{\ss}e
Verz{\"o}gerungen oder Verbindungsausf{\"a}lle auf. Hoarding-Verfahren versuchen diese
Probleme zu l{\"o}sen, indem sie Informationen, auf die der Benutzer
voraussichtlich zugreifen wird, im voraus {\"u}bertragen. Dazu m{\"u}ssen sie jedoch
vorhersagen, welche Informationen der Benutzer ben{\"o}tigen wird. In diesem
Beitrag stellen wir ein Hoarding-Verfahren vor, das f{\"u}r diese Vorhersage die
Ortsabh{\"a}ngigkeit von Informationszugriffen ausnutzt. Wie wir durch Simulationen
zeigen, wird der Speicherplatz auf dem Endger{\"a}t dadurch sehr effizient genutzt.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=ART-2001-03&engl=0}
}
@article {ART-2001-02,
author = {Peter Coschurba and Joachim Baumann and Uwe Kubach and Alexander Leonhardi},
title = {{Metaphors for Context-Aware Information Access}},
journal = {Springer Personal Technologies Journal},
publisher = {Springer},
volume = {5},
number = {1},
pages = {16--19},
type = {Artikel in Zeitschrift},
month = {Januar},
year = {2001},
language = {Deutsch},
cr-category = {H Information Systems},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte H{\"o}chstleistungsrechner, Verteilte Systeme},
abstract = {(not available)},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=ART-2001-02&engl=0}
}
@inbook {INBOOK-2004-09,
author = {Uwe Kubach and Christian Becker and Illya Stepanov and Jing Tian},
title = {{Simulation Model and Tool for Mobile Location Dependent Information Access}},
series = {Mobile Computing Handbook},
address = {New York},
publisher = {CRC Press},
type = {Beitrag in Buch},
month = {Juni},
year = {2004},
isbn = {0849319714},
language = {Englisch},
cr-category = {C.2.0 Computer-Communication Networks, General,
C.2.1 Network Architecture and Design,
C.2.4 Distributed Systems,
C.4 Performance of Systems,
I.6.3 Simulation and Modeling Applications,
H.2 Database Management},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Verteilte Systeme},
abstract = {},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INBOOK-2004-09&engl=0}
}