Reputation and trust are useful instruments in multi-agent systems to evaluate agent behaviour. Most of the works on trust and reputation adopt a quantitative representation of these concepts. Trust and reputation are commonly simplified to a numerical representation loosing important properties of these concepts. The aim of this paper is therefore to provide a qualitative formal analysis of tr...

The notion of trust has traditionally been utilized at transaction level in order to bypass expensive security checks. In this paper, we extend the trust model to individual programs. Moreover, we develop a self assessment/monitoring framework for trust based on control flow integrity that can be incorporated into a compiler. We also extend the concept of Schneider’s enforceable security policy...

Lack of trust in online companies is a primary reason why many web users do not shop online. This study proposes a model to explain how new customers of a web-based company develop initial trust in the company after their first visit. The model is empirically tested using a questionnaire-based field study. The results indicate that perceived company reputation and willingness to customize produ...

Trust is viewed as a computational construct capable of being explicitly studied and modeled. Although articulated as a (functional) property of individual agents, the collective effect of events influencing (and being influenced by) trust judgments can impact organizational behavior. In this paper we summarize our work on agent trust and explore a current study on trust, cooperativity, and ben...

Trust is conceived as an attitude leading to intentions resulting in user actions involving automation. It is generally believed that trust is dynamic and that a user’s prior experience with automation affects future behavior indirectly through causing changes in trust. Additionally, individual differences and cultural factors have been frequently cited as the contributors to influencing trust ...

Trust of an enterprise distributed real-time and embedded (DRE) system indicates conformance of this system’s behavior to its published specification. As enterprise DRE systems migrate toward open-architectures that promote system design and implementation via (third-party) components and the composition of such components, it is becoming more critical to evaluate trust at multiple levels of gr...

Most of the sensor network applications in military and civilian use are surreptitious. If these are used for the benefit of society in addition to the individual needs a new set of applications can be developed. This paper describes infrastructure monitoring based on collaboration between sensor networks. The solution provides a reputation based hybrid network where collaborative trust is esta...

Generalized trust refers to trust in other members of society; it may be distinguished from particularized trust, which corresponds to trust in the family and close friends. An extensive empirical literature has established that generalized trust is an important aspect of civic culture. It has been linked to a variety of positive outcomes at the individual level, such as entrepreneurship, volun...