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  • Torsten Eymann (23) (remove)

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  • 2007 (7)
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23 search hits

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Show/Hide Abstract Performance Evaluation - Annual Report Year 2 (2006)
Oscar Ardaiz Michele Catalano Pablo Chacin Isaac Chao Juan Carlos Cruellas Felix Freitag Manuel Medina Leandro Navarro Miguel Valero Liviu Joita Omer F. Rana Björn Schnizler Torsten Eymann
In this paper a performance measuring infrastructure,developed for the prototype and simulator, concering the experiment configuration, data measurement, and data collection, is presented. A corresponding performance evaluation framework is defined to obtain the metrics from the measured data. Initial experiments were carried out to test the developed prototype, simulator and the performance measuring infrastructure.
Proof-of-Concept Application - Annual Report Year 2 (2006)
Oscar Ardaiz Pablo Chacin Isaac Chao Juan Carlos Cruellas Felix Freitag Manuel Medina Leandro Navarro Miguel Valero Loviu Joita Omer F. Rana Torsten Eymann
Show/Hide Abstract Proof-of-Concept Application - Annual Report Year 3 (2007)
Oscar Ardaiz Pablo Chacin Isaac Chao Felix Freitag Leandro Navarro Liviu Joita Omer F. Rana Werner Streitberger Sebastian Hudert Torsten Eymann
In this report the progress of developing the proof-of-concept application in the CATNETS project is presented. Hence the development of the necessary performance measuring components as well as a distributed application to execute on economic-enhanced Grid/P2P platforms and middleware integration are described.
Show/Hide Abstract A Survey on Reputation Systems for Artificial Societies (2009)
Tina Balke Stefan König Torsten Eymann
The Internet has caused a revolution in trading. Especially cheap items are now easy to buy and sell on the Internet. As a consequence, sellers nowadays offer a wide range of products on the web, creating an abundance of choice for consumers. Consumers have the opportunity to browse on different auction sites for the item they really want. Along with this success story, however, came the stories of people being cheated by fraudulent online sellers. These frauds cover a range from not delivering what has been promised, the overrating of a product´s condition, to deliberate acts of theft. They are a result of so-called asymmetric information. Trust and reputation mechanisms are intended to address this asymmetric information distribution. This article surveys the most common trust and reputation systems.
Show/Hide Abstract Performance Evaluation - Annual Report Year 3 (2007)
Georg Buss Nils Parasie Daniel Veit Michele Catalano Pablo Chacin Isaac Chao Felix Freitag Leandro Navarro Omer F. Rana Liviu Joita Björn Schnizler Werner Streitberger Torsten Eymann
This report describes the work done and results obtained in third year of the CATNETS project. Experiments carried out with the different configurations of the prototype are reported and simulation results are evaluated with the CATNETS metrics framework. The applicability of the Catallactic approach as market model for service and resource allocation in application layer networks is assessed based on the results and experience gained both from the prototype development and simulations.
Show/Hide Abstract Simulator Development - Annual Report Year 2 (2006)
Gaetano Calabrese Björn Schnizler Werner Streitberger Torsten Eymann Floriano Zini
In this paper the simulation environment for the CATNETS project is defined further. The chosen simulator is adopted in terms of new features an architecture changes in order to provide a valid simulation environment for Application Layer Network scenarios. Furthermore the requirements for a scenario generator and the needed configuration mechanisms for the actual simulation runs are introduced.
Show/Hide Abstract Evaluation and Metrics Framework (2005)
Michele Catalano Gianfranco Giulioni Werner Streitberger Michael Reinicke Torsten Eymann
In this paper a metrics framework for evaluating different scenarios in the CATNETS project is defined. The aim is to use this framework to compare the catallactic scenario against the central auctioneer.
Show/Hide Abstract Tagungsband zum Doctoral Consortium der WI2007 (2007)
Torsten Eymann
Bereits seit Anfang der 1990er Jahre wird jungen Wissenschaftlern im Vorfeld der Tagung "Wirtschaftsinformatik" ein Doctoral Consortium als unterstützendes Forum angeboten. Diese Einrichtung wurde auch zur größten internationalen Konferenz der Wirtschaftsinformatik, der WI 2007 in Karlsruhe fortgeführt. Dieser Band fasst die zum Vortrag ausgewählten Beiträge zusammen.
Show/Hide Abstract Tagungsband zum Doctoral Consortium der WI2009 (2009)
Torsten Eymann
Bereits seit Anfang der 1990er Jahre wird jungen Wissenschaftlern im Vorfeld der Tagung "Wirtschaftsinformatik" ein Doctoral Consortium als unterstützendes Forum angeboten. Diese Einrichtung wurde auch zur größten internationalen Konferenz der Wirtschaftsinformatik, der WI 2009 in Wien fortgeführt. Dieser Band fasst die zum Vortrag ausgewählten Beiträge zusammen.
Show/Hide Abstract Tagungsband zum Doctoral Consortium der WI 2011 (2011)
Torsten Eymann
Since the early 1990es, young researchers participate in the doctoral consortium series, co-located with the "Wirtschaftsinformatik" conference. This volume contains the selected papers of 20 PhD candidates of the 2011 doctoral consortium in Zurich.

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