Traditional centralized approaches to security are difficult to apply to large, distributed, multi-agent
systems (MAS). Developing a notion of trust that is based on the reputation of agents …

We consider schemes for obtaining truthful reports on a common but hidden signal from large
groups of rational, self-interested agents. One example are online feedback mechanisms, …

Traditional centralized approaches to security are difficult to apply to large, distributed, multi-agent
systems. Developing a notion of trust that is based on the reputation of agents can …

Service-level agreements (SLAs) establish a contract between service providersand clients
concerning Quality of Service (QoS) parameters. Without properpenalties, service providers …

Online reputation mechanisms need honest feedback to function effectively. Self interested
agents report the truth only when explicit rewards offset the cost of reporting and the potential …

Online reputation mechanisms need honest feedback to function effectively. Self-interested
agents report the truth only when explicit rewards offset the potential gains obtained from …

Crowdsourcing is widely proposed as a method to solve a large variety of judgment tasks,
such as classifying website content, peer grading in online courses, or collecting real-world …

We commonly use the experience of others when taking decisions. Reputation mechanisms
aggregate in a formal way the feedback collected from peers and compute the reputation of …

In online labor platforms such as Amazon Mechanical Turk, a good strategy to obtain quality
answers is to take aggregate answers submitted by multiple workers, exploiting the wisdom …

The internet is moving rapidly towards an interactive milieu where online communities and
economies gain importance over their traditional counterparts. While this shift creates …