Reported dollar losses from online auction fraud were over $43M in 2008 in the US (NW3C, 2009). In general, reputation systems provided by online auction sites are the most common countermeasure available for buyers to evaluate a seller’s credit. Unfortunately, feedback score mechanisms are too easily manipulated, creating falsely overrated reputations. In addition, existing research on online ...

Trust is a broad concept which, in many systems, is reduced to reputation estimation. However, reputation is just one way of determining trust. The estimation of trust can be tackled from other perspectives as well, including by looking at provenance. In this work, we look at the combination of reputation and provenance to determine trust values. Concretely, the first contribution of this paper...

Reputation management systems are in wide-spread use to regulate collaborations in cooperative systems. Collusion is one of the most destructive malicious behaviors in which colluders seek to affect a reputation management system in an unfair manner. Many reputation systems are vulnerable to collusion, and some model-specific mitigation methods are proposed to combat collusion. Detection of col...

Aging is a natural process that leads to debility, disease, and dependency. Alzheimer’s disease (AD) causes degeneration of the brain cells leading cognitive decline memory loss, as well dependence on others fulfill basic daily needs. AD major cause dementia. Computer-aided diagnosis (CADx) tools aid medical practitioners in accurately identifying diseases such patients. This study aimed develo...

The influence of company reputation, or what is often referred to as corporate reputation on branding strategy and producing intangible asset for different industries has been researched in western countries, but there is a gap for the generalizability of findings to countries out of the United State and Europe . To establish the western researcher’s external validity of theories in other count...