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2007年8月6日 · a transparent, cooperative environment for the scientific research of trust metrics. This is the wiki, where we review and understand trust and its related issues.
Cindy Kohtala is a writer, teacher and researcher in the field of Design-for-Sustainability. She is currently a post-doc researcher in the Department of Design, Aalto University School of Arts, Design and Architecture, examining collaborative design in material peer production communities and sustainable innovation processes.
From the Wikipedia: "Teikei (提携) is a system of community-supported agriculture in Japan, where consumers purchase food directly from farmers. Teikei is closely associated with small-scale, local, organic farming, and volunteer-based, non-profit partnerships between producers and consumers. Millions of Japanese consumers participate in teikei.
Jerome Lewis: "This characterisation is based on an analytical distinction between an ‘immediate-return’ hunter-gatherer economy and agricultural, herding or capitalist ‘delayed-return’ economies that is helpful for understanding the differences in approach to resource management and the environment. In delayed-return societies work is ...
Discussion Kevin Jon Fernlund: "The New World of Bacon was not just geographical; it was also psychological — a new state of mind. In short, as reflected in the methods of Bacon and René Descartes — and later with the work and achievements of Isaac Newton ...
- Description
- Characteristics
- Examples
- More Information
Since the definition of trust and reputation, as well as of trust metrics and reputation systems is partially interchangeable, see also our entry on Reputationwhere we discuss reputation systems. The Wikipedia article on trust metricsnotes that such systems must exhibit "Attack resistance, i.e. the ability to handle agents who participate in bad fa...
Local vs. Global
"A local trust metric predicts trust scores that are personalized from the point of view of every single user. For example a local trust metric might predict "Alice should trust Carol as 0.9" and "Bob should trust Carol as 0.1", or more formally trust(A,C)=0.9 and trust(B,C)=0.1 On the other hand, a global trust metric computes a single global trust value for every single user. Local trust metrics start from the assumption that every single trust statement is an equally worthy subjective opin...
Objective vs. Subjective
Objective: "Objective trust is sometimes used as synonym of reputation. In reality the trust cannot be defined objectively simply because every principal is free to express a level of trust in a certain trustee different from the level of trust expressed by the other principals on the same trustee. For this reason, it is better to use the term "reputation" when referring to an aggregated value computed by a global trust metric trying to represent what the community as a whole thinks about a c...
"Trust metrics are currently applied in: 1. Peer to Peer file exchange and others computer based cooperative infrastructures usually very automated trust system with little manual intervention 1. Internet Pages Ranking, totally automated systems consider page view count or link count as an implicit trust data, other systems are based on explicit us...
See our entries on Trust and ReputationTrustLet is a collaborative research effort with comprehensive information on the issue, there's also a wikiwhose goal is to review, understand, code and compare on same data all the trust metrics...Definitional work at http://www.trustlet.org/wiki/Trust_metricsAn example of Content-driven Reputation= HandWave is a small, wireless, networked skin conductance sensor for affective computing applications. URL = http://affect.media.mit.edu/projectpages/handwave ...
