On-line platforms foster the communication capabilities of the Internet to develop large-scale
influence networks in which the quality of the interactions can be evaluated based on trust …

In our increasingly interconnected world, the need for reputation is becoming more important
as larger numbers of people and services interact online. Reputation is a tool to facilitate …

Trust and reputation systems represent a significant trend in decision support for Internet
mediated service provision. The basic idea is to let parties rate each other, for example after …

Many researchers have demonstrated that the organizational design employed by an agent
system can have a significant, quantitative effect on its performance characteristics. A range …

Security and privacy issues have become critically important with the fast expansion of
multiagent systems. Most network applications such as pervasive computing, grid …

There are currently very few practical methods for assessing the quality of resources or the
reliability of other entities in the online environment. This makes it difficult to make decisions …

In group decision-making (GDM) problems, experts need to communicate and adjust their
opinions in order to achieve consensus on the final decision-making output. Since experts …

In many dynamic open systems, autonomous agents must interact with one another to
achieve their goals. Such agents may be self-interested and, when trusted to perform an …

Different trust and/or reputation models have arisen in the last few years. All of them have
certain key processes in common such as scoring, ranking, rewarding, punishing or …

The Internet has created vast opportunities to interact with strangers. The interactions can be
fun, informative, and even profitable [1]. However, there is also risk involved. Will an eBay …