Philipp Obreiter

Stimulating cooperative behavior of autonomous devices - an analysis of requirements and existing approaches. (2007)

Obreiter, Philipp, Koenig-Ries, Birgitta, Klein, Michael

In the context of mobile and wireless devices, an information system is no longer a centralized component storing all the relevant data nor is it a decentralized component governed by a common...

Engineering incentive schemes for ad hoc networks: a case study for the lanes overlay [online]. (2007)

Obreiter, Philipp, König-Ries, Birgitta, Papadopoulos, Georgios

In ad hoc networks, devices have to cooperate in order to compensate for the absence of infrastructure. Yet, autonomous devices tend to abstain from cooperation in order to save their own resources....

Analysis and conception of tuple spaces in the eye of scalability. (2007)

Obreiter, Philipp

Applications in the emerging fields of eCommerce and Ubiquitous Computing are composed of heterogenous systems that have been designed separately. Hence, these systems loosely coupled and require a...

Lanes. A lightweigth overlay for service discovery in mobile ad hoc networks. (2007)

Klein, Michael, Koenig-Ries, Birgitta, Obreiter, Philipp

The ability to discover services offered in a mobile ad hoc network is the major prerequisite for effective usability of these networks. Unfortunately, existing approaches to service trading are not...

A taxonomy of incentive patterns - the design space of incentives for cooperation. (2007)

Obreiter, Philipp, Nimis, Jens

In ad hoc networks, devices must cooperate in order to compensate for the absence of infrastructure. Yet, autonomous devices are free to decide whether to cooperate or not. Hence, incentives are...

Self-configuring resource management in cooperative and uncooperative autonomous systems. (2007)

Obreiter, Philipp, Klein, Michael

In several circumstances, cooperation among autonomous agents is a prerequisite for effective or efficient task processing. This stems from the inherent or transient asymmetry of the agents’...

The Software Station - a system for version controlled development and web based deployment of software for a mobile environment. (2007)

Liu, Lei, Obreiter, Philipp

As mobile devices become more wide spread, making available software for such devices is crucial for making use of their capabilities. However, due to the inherent constraints of mobile devices, it...

The Buddy System - a distributed reputation system based on social structure [online]. (2007)

Faehnrich, Stefan, Obreiter, Philipp

In P2P networks, there are no incentives to cooperate. There is neither a reward for cooperation nor a punishment for non-cooperation. A distributed reputation system could solve this problem, by...

Economic incentive patterns and their application to ad hoc networks. (2007)

Anders, Ralf, Obreiter, Philipp

While research about cooperation incentives for mobile ad hoc networks (MANETs) is done only for a relative short period, there exists tremendous knowledge in the economic and social areas. Based on...

Kooperationsanreize für autonome Einheiten in selbst-organisierenden Informationssystemen (2006)

Obreiter, Philipp

Für Informationssysteme haben die Selbstorganisation und Autonomie der Teilnehmer große Bedeutung gewonnen, da hier die Inbetriebnahme mit sehr geringen Kosten verbunden ist und die Betriebskosten...

Kooperationsanreize in selbstorganisierenden Informationssystemen. Soziale Kontrolle zwischen autonomen Computereinheiten (2006)

Obreiter, Philipp

Für Informationssysteme haben die Selbstorganisation und Autonomie der Teilnehmer große Bedeutung gewonnen. Ein solches System ist beispielsweise ein Ad-hoc Netz einer Universität, in dem sich die...

04441 Working Group -- Business Models (2005)

König-Ries, Birgitta, Lehner, Franz, Malaka, Rainer, Matthes, Florian, Obreiter, Philipp, Pousttchi, Key, ...

This document presents the results from the working group “Business Models” (WG 1) discussing the seminar topic under market aspects. Main objectives were developing a...

04441 Working Group - Some Open Aspects of Mobile Ad-hoc NETwork, Peer-to-Peer, and Self-organizing Systems (2005)

Böse, Joos-Hendrik, Böttcher, Stefan, Gruenwald, Le, Marrón, Pedro Jóse, Obreiter, Philipp, Pitoura, Evaggelia, ...

This document summarizes the results of the working group discussion on Mobile Ad-hoc NETworks (MANETs), peer-to-peer (p2p) and self-organizing systems held at the workshop on Mobile Information...

Transaction protocols for self-organizing systems of autonomous entities. (2004)

Obreiter, Philipp, Nistoreanu, Ioana

Self-organizing systems of autonomous entities have gained wide-spread attention in the research community. The most difficult problem of such systems is that autonomous entities may choose between...

The Buddy System - A Distributed Reputation System Based on Social Structure (2004)

Stefan Fähnrich, Philipp Obreiter

In P2P networks, there are no incentives to cooperate. There is neither a reward for cooperation nor a punishment for non-cooperation. A distributed reputation system could solve this problem, by...

How Social Structure Improves Distributed Reputation Systems - Three Hypotheses (2004)

Philipp Obreiter, Stefan Fähnrich, Jens Nimis

Reputation systems provide an incentive for cooperation in artificial societies by keeping track of the behavior of autonomous entities.

Engineering Incentive Schemes for Ad Hoc Networks - A Case Study for the Lanes Overlay (2004)

Philipp Obreiter, Birgitta König-ries, Georgios Papadopoulos

In ad hoc networks, devices have to cooperate in order to compensate for the absence of infrastructure. Yet, autonomous devices tend to abstain from cooperation in order to save their own resources....

Economic Incentive Patterns and their Application to Ad Hoc Networks (2003)

Ralf Anders, Philipp Obreiter

While research about cooperation incentives for mobile ad hoc networks (MANETs) is done only for a relative short period, there exists tremendous knowledge in the economic and social areas. Based on...