Social ReGreT, a reputation model based on social relations

Abstract

Social network analysis has been used for a long time by sociologist as a mechanism to infer and explain social behaviours. Analysing social relations between individuals in a society using social network analysis techniques allows to identify a lot of features of that society that can be very valuable in an e-commerce environment. In this paper we describe how these techniques can be used to improve a reputation system and also how this system can be integrated with a negotiation model to increase the succes of negotiations.

Trustworthy Agent-Based Recommender System in a Mobile P2P Environment

“…According to to the literature, agent A's trust in item i is built from direct experiences [7] or from indirect experiences [4] (coming from other peers) or from a combination of both. Instead of using an unknown network of recommenders, we propose that A uses its own TRec to obtain focused recommendations (represented by TRat) about i.…”

“…Most of the decentralised agent-based recommender systems [1][2][3][4][5][6][7] present four main differences with our approach. First, and except [6], they are all not suitable for mobile environments (require huge traffic between remote peers).…”

“…Second, most of them use witness reputation mechanisms (e.g. [4,5,7]). In our approach we only use members' reputation in the bootstrapping phase, if the agent has no past relevant experience.…”

Negotiation and Monitoring of Service Level Agreements

“…In general, there are two main approaches for contractual penalties in SLAs: reputation based mechanisms [1,5] and monetary fines. It is useful to note that often obligations within an SLA are primarily centered on the provider towards the client.…”

Legal Security and Credibility in Agent Based Virtual Enterprises

“…Having the above stated in mind, it is essential to consider that all intervenients and processes in VE also should be seen as secure, trustable, reliable and credible [13,14,15,16].…”