Generally online (Electronic commerce or E-commerce) applications use reputation reporting system for trust evaluation where they gather overall feedback ratings from the sellers to compute the reputation score. A well-known issue with the reputation conduct system is " all good reputation " problem where over 99% of feedback ratings are positive leading to high reputation scores. This issue is...

Reputation systems evolve as a mechanism to build trust in virtual communities. In this paper we evaluate different metrics for computing reputation in multi-agent systems. We present a formal model for describing metrics in reputation systems and show how different well-known global reputation metrics are expressed by it. Based on the model a generic simulation framework for reputation metrics...

Trust models play a crucial role in many application contexts involving competition like e-commerce, e-learning, etc. The above application domains deal with very-large-size sets of users with heterogeneous platforms. As a consequence, the Multi-Agent Systems paradigm appears to be one of the most promising approaches to apply in this context. Verifying the trustworthiness of a reputation feedb...

Some form of measure of reputation seems to be at the heart of all online transactional activities that require trust. However, most of the first generation reputation management systems (RMS) used are yet very basic and often vulnerable to various attacks. In this research, we take a holistic approach to the problem of RMS design. We propose a generalized set-theoretic reputation function cons...

Markets for Reputation: Evidence on Quality and Quantity in Academe We develop a theory of the market for individual reputation, an indicator of regard by one’s peers and others. The central questions are: 1) Does the quantity of exposures raise reputation independent of their quality? and 2) Assuming that overall quality matters for reputation, does the quality of an individual’s most importan...

The need for reputation assessment is particularly strong in peer-to-peer (P2P) systems because the peers’ personal site autonomy is amplified by the inherent technological decentralization of the environment. However, the decentralization notion makes the problem of designing a peer-to-peer based reputation assessment substantially harder in P2P networks than in centralized settings. Existing ...

This study examines how sellers respond to changes in the design of reputation systems on eBay. Specifically, we focus on one particular strategic behavior on eBay’s reputation system, the sellers’ explicit retaliation against negative feedback provided by buyers to coerce buyers into revoking their negative feedback. We examine how these strategic sellers respond to the removal of their abilit...

Building trust is very important because fraud has been on rise in online electronic markets. Trust allows participant in online electronic markets to overcome perceptions of risk and uncertainty and make a deal. This paper proposes a design of a mechanism of building trust in online electronic markets. The interesting aspects of this mechanism is that it not only improves reputation rating mea...

Linguistic factors played a significant role in the origin and spread of accusations of witchcraft in Early Modern Spain. The preoccupation with witches’ words is at its root a preoccupation about the power of speech and, to a great extent, of female speech. Studies in some Early European countries have connected aggressive female speech styles with accusations of witchcraft, and this article o...