A language for trust modelling

• Main Authors: Muller, Tim, Zhang, Jie, Liu, Yang
• Other Authors: School of Computer Science and Engineering
• Format: Conference or Workshop Item
• Language: English
• Published: 2020
• Subjects: DRNTU::Engineering::Computer science and engineering; Model; Computational
• Online Access: http://ceur-ws.org/Vol-1578/; https://hdl.handle.net/10356/136933; http://ceur-ws.org/Vol-1578/
• Institution: Nanyang Technological University

The computational trust paradigm supposes that it is possible to quantify trust relations that occur within some software systems. The paradigm covers a variety of trust systems, such as trust management systems, reputation systems and trust-based security systems. Different trust systems have different assumptions, and various trust models have been developed on top of these assumptions Typically, trust models are incomparable, or even mutually unintelligible; as a result their evaluation may be circular or biased. We propose a unified language to express the trust models and trust systems. Within the language, all trust models are comparable, and the problem of circularity or bias is mitigated. Moreover, given a complete set of assumptions in the language, a unique trust model is defined.