During the last twenty years, a huge amount of trust and reputation models have been proposed, each of them with their own particularities and targeting different domains. While much effort has been made in defining ever-increasing complex models, little attention has been paid to abstract away the particularities of these models into a common set of easily understandable concepts. We propose a...

In this paper we describe a generic approach to modeling user reputation in online social platforms based on an underlying model of collaboration. This distinguishes our approach from more conventional reputation models which are often based around ad-hoc activity metrics. We evaluate our model with respect to a conventional reputation model used by 3 social Q&A websites, each based on a differ...

Rating systems are used by many websites, which allow customers to rate available items according to their own experience. Subsequently, reputation models are used to aggregate available ratings in order to generate reputation scores for items. A problem with current reputation models is that they provide solutions to enhance accuracy of sparse datasets not thinking of their models performance ...

Online brand reputation is of increasing significance to many organisations and institutes around the globe. As the usage of the www continues to increase it has become the most commonly used platform for users and customers of services and products to discuss their views and experiences. The nature of this www discussion can significantly influence the perception and hence the success of a bra...

Trust between communicating peers is increasingly catching the attention of the research community. Several methods have been proposed to assist the task of establishing trust between communicating peers; all of which make use of reputation mechanisms. We find that in present literature, reputation is incorrectly defined, as some chief aspects of reputation are not considered while defining it....

khwāja naṣīr al-dīn ṭūsī is one of the greatest thinkers of the middle centuries (ah), who enjoys a high status in science and literature and has a worldwide reputation. naṣīr al-dīn ṭūsī did not suffice himself merely with science (‘ilm) and thought and was involved in practical politics, too. the last two decades of khwāja naṣīr’s life in ilkhanids courts was his period of scientific and prac...

In 2008, the Ontario Long Term Care Association was awarded funding from HealthForceOntario to assist with its nursing recruitment strategy based on research it had initiated in 2007. The research goal was to understand the career motivations and perceptions of students enrolled in registered nursing (RN) and registered practical nursing (RPN) programs in Ontario to develop and test a message t...

The alliance chain system is a distributed ledger based on blockchain technology, which can realize data sharing and collaboration among multiple parties while ensuring security reliability. Practical Byzantine Fault Tolerance (PBFT) consensus algorithm the most popular protocol in chain, but has problems such as high complexity too simple election of master node, will make PBFT unable to be ap...

Reputation Speculation behavior means that the buyers and sellers collaborate with each other to make fake transaction and give positive feedbacks in order to raise reputation level of online shops. This paper finds that reputation speculation is widely adopted and becomes an industry in China, making the consumers distrust the reputation of online stores, which is not conducive for the long-te...

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...