Publikationen AS: Bibliographie 2001 BibTeX
@inproceedings {INPROC-2001-70,
author = {Albrecht Messner and Bernhard Mitschang},
title = {{Leistungsbewertung f{\"u}r Application Server Technologie: ein parametrisierbarer Benchmark-Ansatz am Beispiel des Brokat Twister Application Servers.}},
booktitle = {GI Jahrestagung (2) 2001. Bd. 2},
editor = {Gesellschaft f{\"u}r Informatik e.V.},
address = {Wien},
publisher = {Gesellschaft f{\"u}r Informatik e.V.},
institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Elektrotechnik und Informationstechnik, Germany},
pages = {909--915},
type = {Konferenz-Beitrag},
month = {September},
year = {2001},
isbn = {3-85403-157-2},
language = {Deutsch},
cr-category = {H.2.2 Database Management Physical Design},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte Systeme, Anwendersoftware},
abstract = {E-Commerce: Systemunterst{\"u}tzung f{\"u}r den Umgang mit Daten und Prozessen in
vernetzten Anwendungsumgebungen. Leistungsbewertung f{\"u}r Application Server
Technologie: ein parametrisierbarer Benchmark-Ansatz am Beispiel des Brokat
Twister Application Servers. 909-915},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2001-70&engl=0}
}
@inproceedings {INPROC-2001-44,
author = {Daniela Nicklas and Christoph Pfisterer and Bernhard Mitschang},
title = {{Towards Location-based Games}},
booktitle = {Proceedings of the International Conference on Applications and Development of Computer Games in the 21st Century: ADCOG 21; Hongkong Special Administrative Region, China, November 22-23 2001},
editor = {Alfred Loo Wai Sing and Wan Hak Man and Wong Wai and Cyril Tse Ning},
address = {Hong Kong},
publisher = {Division of Computer Studies, City University of Hong kong, Hong Kong SAR, China},
institution = {Universit{\"a}t Stuttgart : Sonderforschungsbereich SFB 627 (Nexus: Umgebungsmodelle f{\"u}r mobile kontextbezogene Systeme), Germany},
pages = {61--67},
type = {Konferenz-Beitrag},
month = {November},
year = {2001},
isbn = {924-442-199-4},
keywords = {Nexus; Location-based Services; Games; Augmented World Model; Nexus Applications},
language = {Deutsch},
cr-category = {D.2.11 Software Engineering Software Architectures,
H.3.5 Online Information Services,
K.8 Personal Computing},
ee = {ftp://ftp.informatik.uni-stuttgart.de/pub/library/ncstrl.ustuttgart_fi/INPROC-2001-44/INPROC-2001-44.pdf,
ftp://ftp.informatik.uni-stuttgart.de/pub/library/ncstrl.ustuttgart_fi/INPROC-2001-44/INPROC-2001-44.ps,
http://www.nexus.uni-stuttgart.de},
contact = {Daniela Nicklas danickla@informatik.uni-stuttgart.de},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte H{\"o}chstleistungsrechner, Anwendersoftware},
abstract = {In this paper we investigate the basic properties of location-based games. This
new type of game is made possible by the recent advances of mobile computing
hardware and infrastructure. Players act not by pressing buttons or moving
pawns on a board, but by moving around themselves in the real world. We present
a simple classification of location-based games, and show how these games can
be designed and implemented. With some adaptations, game concepts from existing
board and computer games can be mapped to make location-based games more
interesting and fun to play. Our methods are demonstrated with three actual
game examples. Further, common infrastructure requirements are deduced and we
show how the open platform developed by the neXus working group fulfills them.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2001-44&engl=0}
}
@inproceedings {INPROC-2001-43,
author = {Daniela Nicklas and Bernhard Mitschang},
title = {{The Nexus Augmented World Model: An Extensible Approach for Mobile, Spatially-Aware Applications}},
booktitle = {Proceedings of the 7th International Conference on Object-Oriented Information Systems : OOIS '01 ; Calgary, Canada, August 27-29, 2001},
editor = {Yingxu Wang and Shushma Patel and Ronald Johnston},
address = {London},
publisher = {Springer-Verlag},
institution = {Universit{\"a}t Stuttgart : Sonderforschungsbereich SFB 627 (Nexus: Umgebungsmodelle f{\"u}r mobile kontextbezogene Systeme), Germany},
pages = {392--401},
type = {Konferenz-Beitrag},
month = {Januar},
year = {2001},
isbn = {1-85233-546-7},
keywords = {Nexus; location-based services; location-aware; augmented world model},
language = {Englisch},
cr-category = {H.2.1 Database Management Logical Design,
H.2.8 Database Applications,
H.3.5 Online Information Services},
ee = {http://www.nexus.uni-stuttgart.de/},
contact = {Daniela Nickals daniela.nicklas@informatik.uni-stuttgart.de},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte H{\"o}chstleistungsrechner, Anwendersoftware},
abstract = {How should the World Wide Web look like if it were for location-based
information? And how would mobile, spatially aware applications deal with such
a platform? In this paper we present the neXus Augmented World Model, an object
oriented data model which plays a major role in an open framework for both
providers of location-based information and new kinds of applications: the
neXus platform. We illustrate the usability of the model with several sample
applications and show the extensibility of this framework. At last we present a
stepwise approach for building spatially aware applications in this
environment.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2001-43&engl=0}
}
@inproceedings {INPROC-2001-42,
author = {Michael Kessler and Gundolf Kiefer and Jens Leenstra and Knut Sch{\"u}nemann and Thomas Schwarz and Hans-Joachim Wunderlich},
title = {{Using a Hierarchical DfT Methodology in High Frequency Processor Designs for Improved Delay Fault Testability}},
booktitle = {Proceedings of the International Test Conference : ITC 2001 ; Baltimore, Maryland, October 30-November 1, 2001},
publisher = {IEEE Computer Society Press},
institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Germany},
pages = {461--469},
type = {Konferenz-Beitrag},
month = {Oktober},
year = {2001},
isbn = {0-7803-7169-0},
keywords = {hierarchical; DfT; BIST; testability; scan chain reordering},
language = {Englisch},
cr-category = {B.8.1 Reliability, Testing, and Fault-Tolerance,
C.1 Processor Architectures,
C.4 Performance of Systems},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte H{\"o}chstleistungsrechner, Anwendersoftware;
Universit{\"a}t Stuttgart, Institut f{\"u}r Informatik, Rechnerarchitektur},
abstract = {In this paper a novel hierarchical DfT methodology is presented which is
targeted to improve the delay fault testability for external testing and
scan-based BIST. After the partitioning of the design into high frequency
macros, the analysis for delay fault testability already starts in parallel
with the implementation at the macro level. A specification is generated for
each macro that defines the delay fault testing characteristics at the macro
boundaries. This specification is used to analyse and improve the delay fault
testability by improving the scan chain ordering at macro-level before the
macros are connected together into the total chip network. The hierarchical
methodology has been evaluated with the instruction window buffer core of an
out-of-order processor. It was shown that for this design practically no extra
hardware is required.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2001-42&engl=0}
}
@inproceedings {INPROC-2001-41,
author = {Daniela Nicklas and Matthias Gro{\ss}mann and Thomas Schwarz and Steffen (ifp) Volz and Bernhard Mitschang},
title = {{A Model-Based, Open Architecture for Mobile, Spatially Aware Applications}},
booktitle = {Proceedings of the 7th International Symposium on Spatial and Temporal Databases: SSTD 2001; Redondo Beach, CA, USA, July 12-15, 2001},
editor = {Christian S. Jensen and Markus Schneider and Bernhard Seeger and Vassilis J. Tsotras},
address = {Berlin, Heidelberg, New York},
publisher = {Springer-Verlag},
institution = {Universit{\"a}t Stuttgart : Sonderforschungsbereich SFB 627 (Nexus: Umgebungsmodelle f{\"u}r mobile kontextbezogene Systeme), Germany},
series = {Lecture Notes in Computer Science},
volume = {2121},
pages = {117--135},
type = {Konferenz-Beitrag},
month = {Juli},
year = {2001},
isbn = {3-540-42301-X},
keywords = {Mobile Computing; Location-Aware Applications; Augmented World Model},
language = {Englisch},
cr-category = {H.2.1 Database Management Logical Design,
H.3.4 Information Storage and Retrieval Systems and Software,
H.3.5 Online Information Services},
ee = {http://www.nexus.uni-stuttgart.de},
contact = {daniela.nicklas@informatik.uni-stuttgart.de, matthias.grossmann@informatik.uni-stuttgart.de, thomas.schwarz@informatik.uni-stuttgart.de, steffen.volz@ifp.uni-stuttgart.de},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte H{\"o}chstleistungsrechner, Anwendersoftware;
Universit{\"a}t Stuttgart, Institut f{\"u}r Photogrammetrie (ifp)},
abstract = {With the emerging availability of small and portable devices that are able to
determine their position and to communicate wirelessly, mobile and spatially
aware applications become feasible. These applications rely on information that
is bound to locations. In this paper we present Nexus, a platform for such
applications, which is open for both new applications and new information
providers, similar to the World Wide Web. Distributed servers provide
location-based information, which is federated to an integrated view for the
applications. To achieve this goal, we present the concept of the Augmented
World Model, which is a common data model for location-based information. We
give an example to show how applications can use this platform.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2001-41&engl=0}
}
@inproceedings {INPROC-2001-40,
author = {Jochen R{\"u}tschlin and G{\"u}nter Sauter and J{\"u}rgen Sellentin and Klaudia Hergula and Bernhard Mitschang},
title = {{Komponenten-Middleware: Der n{\"a}chste Schritt zur Interoperabilit{\"a}t von IT-Systemen}},
booktitle = {Tagungsband der 9. GI-Fachtagung ``Datenbanksysteme in B{\"u}ro, Technik und Wissenschaft'' (BTW 2001), 7.-9. M{\"a}rz 2001, Oldenburg},
editor = {Andreas Heuer and Frank Leymann and Denny Priebe},
address = {Berlin, Heidelberg, New York},
publisher = {Springer-Verlag},
institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Germany},
pages = {322--331},
type = {Konferenz-Beitrag},
month = {M{\"a}rz},
year = {2001},
isbn = {3-540-41707-9},
language = {Deutsch},
cr-category = {H.3.4 Information Storage and Retrieval Systems and Software,
H.3.5 Online Information Services},
ee = {ftp://ftp.informatik.uni-stuttgart.de/pub/library/ncstrl.ustuttgart_fi/INPROC-2001-40/INPROC-2001-40.pdf},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte H{\"o}chstleistungsrechner, Anwendersoftware},
abstract = {In diesem Papier stellen wir eine erste Konzeption f{\"u}r eine komponentenbasierte
Middleware vor. Dabei verwenden wir neutrale Daten- und Beschreibungsmodelle,
um eine Abstraktion bzgl. bestehender Komponentenmodelle zu erlangen.
Kernpunkte in unserer Architektur sind die Komponentenschnittstellen, das auf
SOAP basierende Kommunikationsprotokoll und ein Corporate Repository.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2001-40&engl=0}
}
@inproceedings {INPROC-2001-39,
author = {Jochen R{\"u}tschlin and J{\"u}rgen Sellentin and Bernhard Mitschang},
title = {{Industrieller Einsatz von Application Server Technologie}},
booktitle = {Informatik 2001: Wirtschaft und Wissenschaft in der Network Economy – Visionen und Wirklichkeit. Tagungsband der GI/OCG-Jahrestagung, 25.-28. September 2001, Universit{\"a}t Wien.},
editor = {Kurt Bauknecht and Wilfried Brauer and Thomas M{\"u}ck},
publisher = {{\"O}sterreichische Computer Gesellschaft},
institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Germany},
pages = {916--921},
type = {Konferenz-Beitrag},
month = {September},
year = {2001},
isbn = {3-85403-157-2},
keywords = {Enterprise Application Integration, EAI, Integrationsarchitektur, Middleware, Application Server, J2EE},
language = {Deutsch},
cr-category = {C.2.4 Distributed Systems,
D.2.11 Software Engineering Software Architectures,
D.2.12 Software Engineering Interoperability,
H.4.m Information Systems Applications Miscellaneous},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte H{\"o}chstleistungsrechner, Anwendersoftware},
abstract = {In diesem Beitrag wollen wir anhand einer Integrationsarchitektur aus dem
EAI-Umfeld motivieren und aufzeigen, wie Application Server Technologie
sinnvoll bei der Zusammenf{\"u}hrung von Systemen in einer vernetzten Umgebung
eingesetzt werden kann. Dazu stellen wir erst unsere bisherige
Integrationsarchitektur vor und erl{\"a}utern an dieser einige Nachteile des
traditionellen Vorgehens. Ein Abschnitt {\"u}ber Application Server und die
J2EE-Bestrebungen leiten {\"u}ber zu einem Neuvorschlag der
Integrationsarchitektur, realisiert auf Basis eben dieser Application Server
Technologie.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2001-39&engl=0}
}
@inproceedings {INPROC-2001-38,
author = {Jochen R{\"u}tschlin},
title = {{Ein Portal - Was ist das eigentlich?}},
booktitle = {Informatik 2001: Wirtschaft und Wissenschaft in der Network Economy – Visionen und Wirklichkeit. Tagungsband der GI/OCG-Jahrestagung, 25.-28. September 2001, Universit{\"a}t Wien.},
editor = {Kurt Bauknecht and Wilfrie Brauer and Thomas M{\"u}ck},
publisher = {{\"O}sterreichische Computer Gesellschaft},
institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Germany},
pages = {691--696},
type = {Konferenz-Beitrag},
month = {September},
year = {2001},
isbn = {3-85403-157-2},
keywords = {Portal,Portale},
language = {Deutsch},
cr-category = {H.5.2 Information Interfaces and Presentation User Interfaces},
ee = {ftp://ftp.informatik.uni-stuttgart.de/pub/library/ncstrl.ustuttgart_fi/INPROC-2001-38/INPROC-2001-38.pdf},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte H{\"o}chstleistungsrechner, Anwendersoftware},
abstract = {In diesem Beitrag soll der Versuch unternommen werden, den vagen Begriff eines
Portals genauer zu spezifizieren. Dazu werden Intention und technische
Bestandteile eines Portals er{\"o}rtert. Hilfreich dabei ist der Blick auf
bestehende Systeme, die unter dem Begriff Portal laufen, um durch
Generalisierung und Klassifikation einer Definition n{\"a}her zu kommen. In diesem
Zusammenhang werden auch einige Ergebnisse aus einer in unserem Hause
durchgef{\"u}hrten Evaluierung von drei Portal-Systemen vorgestellt. Als Ausblick
werden einige Anforderungen angesprochen, die mit der heutigen
Portal-Technologie gar nicht oder nur sehr schwer bzw. umst{\"a}ndlich zu
realisieren sind.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2001-38&engl=0}
}
@inproceedings {INPROC-2001-37,
author = {Carmen Constantinescu and Uwe Heinkel and Ralf Rantzau and Bernhard Mitschang},
title = {{SIES - An Approach for a Federated Information System in Manufacturing}},
booktitle = {Proceedings of the International Symposium on Information Systems and Engineering (ISE); Las Vegas, Nevada, USA, June 2001},
publisher = {CSREA Press},
institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Germany},
pages = {269--275},
type = {Konferenz-Beitrag},
month = {Juni},
year = {2001},
isbn = {1-892512-85-8},
keywords = {enterprise application integration; manufacturing; federation; repository; propagation},
language = {Englisch},
cr-category = {H.3.4 Information Storage and Retrieval Systems and Software},
contact = {carmen.constantinescu@informatik.uni-stuttgart.de},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte H{\"o}chstleistungsrechner, Anwendersoftware},
abstract = {Many problems encountered in providing enterprise-wide information are related
to the integration of databases and systems that have been independently
developed and also to the management of changes and transformations of data
from one database (or system) into another. A major requirement is to
accommodate heterogeneity and at the same time to preserve the autonomy of the
components. This paper presents our approach to a repository-driven federated
system based on a propagation mechanism. The Stuttgart Information and
Exploration System (SIES), is characterized by its main components: the
Federation Manager, the Propagation Manager and the Re-pository System.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2001-37&engl=0}
}
@inproceedings {INPROC-2001-34,
author = {Aiko Frank},
title = {{Agent Protocols for Integration and Cooperation in a Design Application Framework}},
booktitle = {Proceedings of the 2nd International Workshop on Software Agents and Workflow for Systems Interoperability, London, ON, Canada, July 14th, 2001},
editor = {Zakaria Maamar and Weiming Shen and Hamada H. Ghenniwa},
address = {London, Canada},
publisher = {NRC Research Council Canada},
institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Germany},
pages = {31--38},
type = {Konferenz-Beitrag},
month = {Juli},
year = {2001},
isbn = {0-660-18552-0},
keywords = {Designflow; CSCW; data sharing; agent protocols},
language = {Englisch},
cr-category = {H.4.1 Office Automation,
H.5.3 Group and Organization Interfaces,
J.6 Computer-Aided Engineering},
ee = {ftp://ftp.informatik.uni-stuttgart.de/pub/library/ncstrl.ustuttgart_fi/INPROC-2001-34/INPROC-2001-34.pdf},
contact = {frankao@informatik.uni-stuttgart.de},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte H{\"o}chstleistungsrechner, Anwendersoftware},
abstract = {Design is a discipline, which requires support for the combination of different
systems and tools, spontaneous interaction between designers, sharing of
(design) data, and adaptability to altering conditions. When looking at design
processes it is a demanding task to coordinate and organize the work of the
different team members. The work of a single person not only depends upon the
work of others, but can also influence the work of other designers as well.
Correspondingly, patterns of cooperation are to be established to minimize or
resolve resulting conflicts, support the concurrent use of data, and to
coordinate the work process. In order to fulfill those requirements the ASCEND
Designflow Model and its prototype CASSY offer a corresponding object model, an
architecture combining workflow and groupware systems, and finally a protocol
integration layer based on agent communication. This protocol layer helps to
flexibly combine the functionality of the different systems and services, since
it can be adapted to different application scenarios. In this paper, we will
describe the concepts of the protocols and their implementation architecture,
resulting in a generic protocol engine.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2001-34&engl=0}
}
@inproceedings {INPROC-2001-33,
author = {Aiko Frank and Bernhard Mitschang},
title = {{On Sharing of Objects in Concurrent Design}},
booktitle = {Proceedings of the 6th International Conference on CSCW in Design (CSCWID), London, ON, Canada, July, 2001},
editor = {Weiming Shen and Zongkai Lin and Jean-Paul Barth{\`e}s and Mohamed Kamel},
address = {Ottawa, Canada},
publisher = {NRC Research Press},
institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Germany},
pages = {71--76},
type = {Konferenz-Beitrag},
month = {Juli},
year = {2001},
isbn = {0-660-18493-1},
keywords = {Designflow; CSCW; data sharing; agent protocols},
language = {Englisch},
cr-category = {H.4.1 Office Automation,
H.5.3 Group and Organization Interfaces,
J.6 Computer-Aided Engineering},
ee = {ftp://ftp.informatik.uni-stuttgart.de/pub/library/ncstrl.ustuttgart_fi/INPROC-2001-33/INPROC-2001-33.pdf},
contact = {frankao@informatik.uni-stuttgart.de},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte H{\"o}chstleistungsrechner, Anwendersoftware},
abstract = {Sharing data is an important aspect in distributed design environments and
should be supported by an underlying system. Any synchronous access to data is
conflict prone. Applying concurrency control and two phase commit are an option
to be considered. But design processes also demand cooperation between the
designers. Negotiation about actions on the product under design and the early
exchange of preliminary results are crucial issues. Controlled data access by
itself doesn’t fullfil all the needs for cooperation. We will present a new
approach that relies on a concept and system model which integrates concurrent
activities by a common information space offering flexible protocols for
cooperation on the shared objects. We will describe the customizability of the
protocols to allow the approach to be adapted to different cooperative
scenarios.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2001-33&engl=0}
}
@inproceedings {INPROC-2001-32,
author = {Holger Schwarz and Ralf Wagner and Bernhard Mitschang},
title = {{Improving the Processing of Decision Support Queries: The Case for a DSS Optimizer}},
booktitle = {Proc. of the 2001 International Database Engineering \& Applications Symposium (IDEAS), July 16-18, 2001},
editor = {Michel Adiba and Christine Collet and Bipin C. Desai},
address = {Los Alamitos, Washington, Brussels, Tokyo},
publisher = {IEEE Computer Society},
institution = {Universit{\"a}t Stuttgart, Fakult{\"a}t Informatik, Germany},
pages = {177--186},
type = {Konferenz-Beitrag},
month = {Juli},
year = {2001},
isbn = {0-7695-1140-6},
keywords = {Decision Support; OLAP; Data Warehouse},
language = {Englisch},
cr-category = {H.4.2 Information Systems Applications Types of Systems},
ee = {ftp://ftp.informatik.uni-stuttgart.de/pub/library/ncstrl.ustuttgart_fi/INPROC-2001-32/INPROC-2001-32.pdf},
contact = {holger.schwarz@informatik.uni-stuttgart.de},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte H{\"o}chstleistungsrechner, Anwendersoftware},
abstract = {Many decision support applications are built upon data mining and OLAP tools
and allow users to answer information requests based on a data warehouse that
is managed by a powerful DBMS. In this paper, we focus on tools that generate
sequences of SQL statements in order to produce the requested information. Our
thorough analysis revealed that many sequences of queries that are generated by
commercial tools are not very efficient. An optimized system architecture is
suggested for these applications. The main component is a DSS optimizer that
accepts previously generated sequences of queries and remodels them according
to a set of optimization strategies, before they are executed by the underlying
database system. The advantages of this extended architecture are discussed and
a couple of appropriate optimization strategies are identified. Experimental
results are given, showing that these strategies are appropriate to optimize
typical query sequences of an OLAP application.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2001-32&engl=0}
}
@article {ART-2001-07,
author = {Daniela Nicklas and Matthias Gro{\ss}mann and Thomas Schwarz and Steffen Volz},
title = {{Architecture and Data Model of Nexus}},
journal = {GIS Geo-Informations-Systeme},
address = {Heidelberg},
publisher = {Herbert Wichmann Verlag},
volume = {9},
pages = {20--24},
type = {Artikel in Zeitschrift},
month = {September},
year = {2001},
keywords = {Nexus, architecture, data model, location-based, federation, standard class schema, extended class schema},
language = {Englisch},
cr-category = {H.2.1 Database Management Logical Design,
H.3.4 Information Storage and Retrieval Systems and Software,
H.3.5 Online Information Services},
ee = {http://www.nexus.uni-stuttgart.de},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte H{\"o}chstleistungsrechner, Anwendersoftware;
Universit{\"a}t Stuttgart, Institut f{\"u}r Photogrammetrie (ifp)},
abstract = {The NEXUS platform delivers location-based information and provides additional
supporting services enabling intelligent location-based applications. Its
architecture is open for both new applications and new information providers,
similar to the WWW. The Augmented World Model is a common data model for
location-based information. Our platform uses this model to federate such
information from different providers into an integrated view for the
applications. An example application shows the usage of this platform.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=ART-2001-07&engl=0}
}
@article {ART-2001-06,
author = {Matthias Gro{\ss}mann and Alexander Leonhardi and Bernhard Mitschang and Kurt Rothermel},
title = {{A World Model for Location-Aware Systems}},
journal = {Informatik},
publisher = {Schweizerischer Verband der Informatikorganisationen SVI/FSI},
volume = {8},
number = {5},
pages = {22--25},
type = {Artikel in Zeitschrift},
month = {Oktober},
year = {2001},
keywords = {Mobile Computing; Location-Aware Applications; Augmented World Model},
language = {Englisch},
cr-category = {H.2.3 Database Management Languages,
H.3.4 Information Storage and Retrieval Systems and Software},
ee = {http://www.nexus.uni-stuttgart.de},
contact = {matthias.grossmann@informatik.uni-stuttgart.de, alexander.leonhardi@informatik.uni-stuttgart.de},
department = {Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte H{\"o}chstleistungsrechner, Verteilte Systeme;
Universit{\"a}t Stuttgart, Institut f{\"u}r Parallele und Verteilte H{\"o}chstleistungsrechner, Anwendersoftware},
abstract = {Advanced location-aware applications require a detailed model of the real
world. The goal of the Nexus platform is to provide such a model together with
generic functionality to a wide variety of location-aware applications. In this
paper, we describe the characteristics of this Augmented World Model and the
architecture of the Nexus platform. We look in more detail at the two main
components responsible for the main aspects of the world model, namely the
spatial data and the position information of mobile objects.},
url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=ART-2001-06&engl=0}
}
