Multi-Agent Social Modeling

Modeling of Social Interactions with Multi-Agent Systems is ...

Reputation and Trust in Multiagent Systems

Coordination: Prof. Dr. Torsten Eymann
Contact: Prof. Dr. Torsten Eymann

Represented in MODUS since 2009/01

Members with experience in this area:

The method "Reputation and Trust in Multiagent Systems":

What is this?

Recent developments have shown the emergence of electronic negotiation systems and electronic markets used to efficiently allocate electronic resources, such as web services. Electronic negotiations exhibit much of the same problems real life negotiations have, such as coalition formation, efficient offer matching etc.

However, some problems become more crucial in electronic environments due to the anonymity of the users and the sheer amount of negotiations that can be executed in short time spans. We investigate the trust issue in electronic negotiations, dealing with how to trust a potential transaction partner and how to choose such partners based on their past behaviour in the system. In particular, we want to investigate the efficiency or even applicability of reputation mechanisms for different negotiation protocols and market flavors. Based on social science findings we derive hypotheses on the effects of various commonly used negotiation protocols on the efficient usage of reputation mechanisms.

What is it good for?

We can give recommendations to designers of electronic negotiation systems or markets on which protocols to use, so that they can apply reputation mechanisms and therefore tackle the trusting issue.

Where have we applied it?

The members of MODUS have applied this method for the following challenges:

  - design of negotiation mechanisms for software agents in electronic commerce (the CATNETS project)

  - design of electronic markets for Grid computing and IaaS cloud computing (the SORMA project)

  - design of social governance mechanisms for multiagent systems (the eRep project)

University of Bayreuth -