Reputation-based Agreement for Agent Organisations

Reputation mechanisms have been proved to be valid methods to select partners in organisational environments. In order to tackle some well-known problems inherent to both centralised and distributed reputation mechanisms, a hybrid mechanism combining both techniques seems to be a promising approach. In this work firstly we summarise our previous work, a hybrid reputation mechanism, focusing on the distributed part. Then we put forward the centralised module that completes the mechanism, based on a novel concept such as reputation-based agreement, that attempts to define reputation aggregation as a global agreement reached amongst a set of participants belonging to an organisation. Besides, some particular properties of this type of agreements are proposed. The rest of the paper deals with the problem of how to present the information related to those agreements to agents in the organisations. For that, we will use informative mechanisms supported by some simple examples to better understand their functioning.